Pikagi
Serjoscha Evers Profile Banner
Serjoscha Evers Profile
Serjoscha Evers

@SirJoscha

2,390
Followers
1,111
Following
442
Media
3,551
Statuses

Pal(a)eontologist with reptilian bias | @snsf_ch Ambizione fellow at Uni of Fribourg studying turtle evolution | former @BensonLabOxford member (he/him)

Freiburg, Schweiz
Joined February 2015
Don't wanna be here? Send us removal request.
Pinned Tweet
@SirJoscha
Serjoscha Evers
@SirJoscha
2 years
Neck retraction, ecology & skull shape disparity are linked -> neck retraction plays an important ecomorph role. We hypothesise that neck mobility was a key innovation for the ecological diversification of turtles, allowing the evolution of specialized feeding strategies 9/10
Tweet media one
4
24
116
Last Seen Profiles
PrimeLinePicks

@primelinepicks

Dan Roach

@DanielRoachLFC

mugisha davide

@DavideMugi29658

KU Sport Management

@KUSportMgt

Dae 🌼

@Daeliuu

Civil.ge

@CivilGe

Malintzin Chárraga

@MalintzinCh

三浦宗之(生地のプロフェッショナル)

@kijiya3

CeSa Organization

@CeSaOrganizati1

螂･鄒ｽ迚ｹ諤･�

@0beroffer

Ir Ferdinand

@ManirahoFerdina

Steve Holan

@holan_stev12255

Nagamani Muniyappa

@NagamaniMuniya1

Ts Farha

@TsFarha

RLene🌻🌊 #BlueCrew

@imme629

Andrew

@andrewbrady

MEGUMI♥テレワーク女子

@MEGUMI201588132

Lonely Bagel

@LonelyBagel2

NabZ

@Nabwitter

あるこほーる

@Alcoholic_alg

Donal Cronin

@dpc19771

D&E

@DCbeach805

BriBri😎✌🏼

@TheMcDadddy

Sophie Ward

@Ward__Sophie

Habumuremyi Johnlove

@Habumuremy21981

🥀 Wander 💤🍉

@_WanderingMan

‏࣪

@baekihyn

Maureen Lamb

@MaureenLam80700

seiyajin

@Mhd_crypto

Arabnet عرب نت

@ArabNetME

キューライス

@Qrais_Usagi

Danielle Gomes

@DanielleNGomes

Iván Schargrodsky

@ischargro

Dragonladymn

@Dragonladymn

Focus

@Focus

Ryder Block

@ryder_block

@SirJoscha
Serjoscha Evers
@SirJoscha
8 months
Dinosaur exhibits change — but I guess so do life situations
Tweet media one
Tweet media two
20
76
3K
@SirJoscha
Serjoscha Evers
@SirJoscha
3 years
In our new paper, published today in @nature & led by Martín Ezcurra @MacnVp , we present evidence that lagerpetids, a group of Triassic reptiles, are the closest evolutionary relatives of pterosaurs, the flying reptiles. (Art: Rodolfo Nogueira) 1/9
Tweet media one
6
112
448
@SirJoscha
Serjoscha Evers
@SirJoscha
3 years
NEW PAPER! Meet Sahonachelys mailakavava, the "quick-mouthed frog turtle", gorgeously reconstructed by @AndreyAtuchin 🤩 #paleoart Great team work w/ W. Joyce, Y. Rollot, L. Rahantarisoa, @DiggingDinos & D. Krause
Tweet media one
2
98
378
@SirJoscha
Serjoscha Evers
@SirJoscha
5 years
Comparative anatomy for you: the hand (flipper) of the leatherback sea turtle Dermochelys coriacea, alongside my own!
Tweet media one
3
73
316
@SirJoscha
Serjoscha Evers
@SirJoscha
4 years
Cool soft tissue preservation in this Macropterugius ichthyosaur in Eichstätt
Tweet media one
6
55
294
@SirJoscha
Serjoscha Evers
@SirJoscha
4 years
For #FossilFriday , I’m sharing a picture of this impressive Dakosaurus fossil, a metriorhynchid crocodyliform from the Late Jurassic of Painten.
Tweet media one
1
90
264
@SirJoscha
Serjoscha Evers
@SirJoscha
1 year
Our Irritator paper is out... Olof has a nice thread summarizing the scientific details. I understand there is lots of valid criticism to the ethics, so I offer some personal comments.
@LordTrilobite
Olof Moleman
@LordTrilobite
1 year
Our redescription of the spinosaurid Irritator is out! 🧵
Tweet media one
106
552
2K
3
49
299
@SirJoscha
Serjoscha Evers
@SirJoscha
3 years
Tyler Lyson ( @DiggingDinos ) & team w/ a new species of 🐢, Plastomenus joycei – the first named after Walter Joyce, honouring his contributions to turtle palaeontology - Walter will be happy it's a trionychid too. Congrats to all! Artwork @AndreyAtuchin
Tweet media one
1
53
261
@SirJoscha
Serjoscha Evers
@SirJoscha
3 years
In career news, I am extremely excited, happy, humbled & thankful to have been awarded an Ambizione fellowship by @snsf_ch ( @snf_ch ) for my project "Macroevolutionary patterns of shape evolution in turtles" 🤩🐢🎉
Tweet media one
15
30
263
@SirJoscha
Serjoscha Evers
@SirJoscha
4 years
Meet Asfaltovenator! Congrats to @poldiego and @O_Rauhut !
Tweet media one
Tweet media two
Tweet media three
4
76
232
@SirJoscha
Serjoscha Evers
@SirJoscha
4 years
For #FossilFriday , I have to continue with Solnhofen fossils of which I saw plenty this week - including two original Archaeopteryx. The Eichstätt specimen is preserved with slap and counter slap, and the relatively newly described 12th specimen from Painten is the oldest one!
Tweet media one
Tweet media two
Tweet media three
6
57
212
@SirJoscha
Serjoscha Evers
@SirJoscha
2 years
I am happy 🤩🤩 to announce my latest paper, on turtle inner ear size & shape ecomorphology & evolution in @NatureComms . 🐢🐢 OA: @UnifrResearch @snsf_ch 1/
Tweet card media
Independent origin of large labyrinth size in turtles

Nature Communications - The size and shape of the inner ear, or bony labyrinth, is thought to be related to ecological adaptations in vertebrates. Here, the authors examine this relationship in...

www.nature.com
4
59
217
@SirJoscha
Serjoscha Evers
@SirJoscha
4 years
Today, I woke up to the fantastic news that I have been awarded this year's Edward Forbes Prize of the @Palaeonto_Soc . The prize recognizes outstanding contributions by early career researchers in the field of taxonomic and systematic palaeontology. 1/4
23
8
197
@SirJoscha
Serjoscha Evers
@SirJoscha
4 years
Finally, Allosaurus jimmadseni has been formalised! Congrats to Mark Loewen and Dan Chure for this paper. Really nice reconstructions (and a bunch of photos of mine).
Tweet media one
4
41
181
@SirJoscha
Serjoscha Evers
@SirJoscha
5 years
So I guess I won the Romer Prize. Wow. I’m incredibly happy to be the latest name in a list that includes such incredible people as Nadia Fröbisch or Katrina Jones — just to name two relatively recent winners. #2019SVP
@PalaeoSingh
Dr Suresh Singh
@PalaeoSingh
5 years
Huge Congrats to @SirJoscha on winning the #RomerPrize at #2019SVP ! Additional note: First student at an institution outside of North America to win the prize!
Tweet media one
3
7
63
15
10
182
@SirJoscha
Serjoscha Evers
@SirJoscha
3 years
NEW paper! I'm🤩🤩about this one: it expands my research on flipper evolution fr chelonioids (modern sea turtles) to thalassochelydians, an independent lineage of Jurassic marine turtles. 🌊🐢 Paper by W. Joyce & M. Mäuser & I @PLOSONE : 1/9
Tweet media one
4
50
157
@SirJoscha
Serjoscha Evers
@SirJoscha
4 years
The situation in 🇩🇪 allows first post-Corona collection visits! Today we were in Bamberg to collect data on some spectacular Late Jurassic marine turtles from the Solnhofner plattenkalke. I love how the museum set up the room in style reminiscent of art museums
Tweet media one
Tweet media two
6
25
146
@SirJoscha
Serjoscha Evers
@SirJoscha
2 years
On this #TurtleTuesday , I used a Geoemyda spengleri CT scan (UMMZ herps 227761) from @MorphoSource to teach some of our PhD students how to use Mimics. Look at that huge egg (typical for geoemydids), while the turtle itself is only 10 cm carapace length 🤩🐢♥️
Tweet media one
1
27
150
@SirJoscha
Serjoscha Evers
@SirJoscha
3 years
PhD Announcement: Prof. Walter Joyce & I are looking for a PhD student at Uni Fribourg (Switzerland 🇨🇭), starting date flexible but asap. As the position is not linked to a specific grant, possible topics are wide ranging but should concern turtle evolution. Details here 👇
Tweet media one
5
156
156
@SirJoscha
Serjoscha Evers
@SirJoscha
6 months
Today 5 years ago was my PhD defense! Now I have 34 published papers, nearly 1k citations, my own grant & PhD student. Academically, this was a difficult year - but overall, I’m happier than ever. W/ the Turtle Evo Symp & many papers coming, I look forward to the near future 😊🐢
Tweet media one
6
3
148
@SirJoscha
Serjoscha Evers
@SirJoscha
4 years
I‘m in Munich, so it’s time for Solnhofen fossils from Oli Rauhut‘s office! This is a Pleurosaurus ginsburgi, a marine sphenodontian from the Late Jurassic
Tweet media one
Tweet media two
2
34
123
@SirJoscha
Serjoscha Evers
@SirJoscha
5 years
The 2 major turtle clades, cryptodires & pleurodires, have different ways to retract heads inside the shell. These CT-based 3D models (cranium=y; neck=b; shell=r) of Terrapene carolina in side view show cryptodiran neck type w/ vertical neck retraction forming an S-curve (1/2)
Tweet media one
2
45
127
@SirJoscha
Serjoscha Evers
@SirJoscha
4 years
For #FossilFriday , I am pleased to announce another new theropod paper in @thePeerJ ! We clarify the anatomy of the cheek region in Allosaurus, and provide an updated reconstruction.
Tweet media one
Tweet media two
1
35
125
@SirJoscha
Serjoscha Evers
@SirJoscha
3 years
NEW paper! We describe the cranial anatomy of the paracryptodiran turtle Uluops from the Tithonian Morrision Fm – more famous for its dinosaurs, but look at this gorgeous fossil turtle 🐢🤩 🐢🤩🐢🤩 1/4
Tweet media one
1
31
129
@SirJoscha
Serjoscha Evers
@SirJoscha
6 years
For #FossilFriday , I chose the less famous side of 'Big Al' Allosaurus specimen MOR 693. Impressive specimen, and I was lucky to have a full week with that skull back in 2014.
Tweet media one
1
42
113
@SirJoscha
Serjoscha Evers
@SirJoscha
5 years
Nearly forgot #FossilFriday ! This is the hand & lower arm of a sauropodomorph @mefpatagonia . It’s an unpublished specimen, so no more info here, but I got permission to post the pic by @poldiego (thanks 😊)
Tweet media one
4
31
115
@SirJoscha
Serjoscha Evers
@SirJoscha
6 years
Wohoo! PhD thesis printed, bound, and ready to be submitted tomorrow! Also: Finished on #TurtleThursday :) #phdchat #phdlife #turtles
Tweet media one
5
9
113
@SirJoscha
Serjoscha Evers
@SirJoscha
7 months
I thought to give a sneak about our upcoming work. One paper accepted today, 3 in review, 1 to be submitted next week. Prepare for (1) anatomical networks of turtle skulls, (2) fossil & (3) extant carettochelyid anatomy, (3) some baenid news & (5) my first testudinid paper!
Tweet media one
0
14
117
@SirJoscha
Serjoscha Evers
@SirJoscha
4 years
New paper alert! This one is w/ Gabriel Ferreira as lead author, who teamed up with @tweetIrena , myself & non-tweeters to look at turtle skull biomechanics. Particularly happy to finally have a paper w/ @PalaeoStephan !
Tweet card media
Feeding biomechanics suggests progressive correlation of skull architecture and neck evolution in...

Scientific Reports - Feeding biomechanics suggests progressive correlation of skull architecture and neck evolution in turtles

www.nature.com
6
36
104
@SirJoscha
Serjoscha Evers
@SirJoscha
4 years
#TurtleTuesday (and the answer is yes)
Tweet media one
2
16
103
@SirJoscha
Serjoscha Evers
@SirJoscha
1 year
A new paper fr my @snsf_ch #Ambizione research dropped last week!🐢🤩🐢 @Kimi_Chap & W. Joyce & I describe the beautiful skull of the Bridgerian plastomenid softshell turtle Plastomenus thomasii, from @AMNH . #OpenAccess paper here: & CT+3D @MorphoSource 1/4
Tweet media one
1
33
111
@SirJoscha
Serjoscha Evers
@SirJoscha
5 years
The Vienna Archelon!
Tweet media one
0
16
94
@SirJoscha
Serjoscha Evers
@SirJoscha
6 years
Turtley awesome: I’m Dr. Evers. Thanks to @BensonLabOxford & @NHMdinolab for supervision and @ErinSaupe & @daniel_j_field as examiners!
Tweet media one
15
5
90
@SirJoscha
Serjoscha Evers
@SirJoscha
4 years
New paper! Ready for some cool turtle 3D-models & anatomy!? I am very pleased to announce that my re-description of the weird turtle Sandownia harrisi is out now in @RSocPublishing 's RSOS. (1/4)
Tweet media one
4
31
99
@SirJoscha
Serjoscha Evers
@SirJoscha
1 year
This is how excited @BensonLabOxford was at seeing my turtle bone compactness data.
Tweet media one
4
0
97
@SirJoscha
Serjoscha Evers
@SirJoscha
5 years
For #FossilFriday , here is a cool shot I took a few yrs ago: Manual unguals of the Suchomimus holotype! Suchomimus is a late Early Cretaceous spinosaurid from which very complete material is known - but 21 years after it's intial short report, the material is still undescribed...
Tweet media one
0
33
95
@SirJoscha
Serjoscha Evers
@SirJoscha
5 years
New paper alert! Neurovascular anatomy of the protostegid turtle Rhinochelys pulchriceps and comparisons of membranous and endosseous labyrinth shape in an extant turtle. OA at: 1/n
Tweet media one
3
30
87
@SirJoscha
Serjoscha Evers
@SirJoscha
6 years
My two cents in for the #skullsgetsweird picture series: A skull of the chelid freshwater turtle Mata mata, Chelus fimbriatus. Fits well today, since my friend @GFerreiraMorph & colleagues just have a new paper about pleurodiran phylogeny out ()
Tweet media one
2
38
81
@SirJoscha
Serjoscha Evers
@SirJoscha
2 years
New paper (early online) @journal_evo on cranial ecomorphology of turtles 🐢. This started as a pilot for my @snsf_ch Ambizione project & is @GHermanson_ 's 1st PhD paper. A collaboration w @BensonLabOxford , @GSFerreiraBio , @BrunaMFarina & M. Langer. 1/10
Tweet card media
Cranial ecomorphology of turtles and neck retraction as a possible trigger of ecological diversif...

Turtles have a highly modified body plan, including a rigid shell that constrains postcranial anatomy. Skull morphology and neck mobility may therefore be key to ecological specialization in turtle...

onlinelibrary.wiley.com
2
34
88
@SirJoscha
Serjoscha Evers
@SirJoscha
4 years
I miss working directly with specimens during this pandemic & thus went through some pictures of my last collection visit trip. Found a series of photos & couldn't stop myself... if you ever wondered how my daily work as a turtle palaeontologist goes: wonder no more! 🐢
Tweet media one
3
7
83
@SirJoscha
Serjoscha Evers
@SirJoscha
6 years
If Palaeocake doesn't win this @OxUniEarthSci X-Mas I'll lose faith in humanity #FossilFriday
Tweet media one
3
24
81
@SirJoscha
Serjoscha Evers
@SirJoscha
4 years
#SVP2020 Massive congratulations to my friend @AAlechiarenza for winning the 2020 Romer Prize!! Especially as this year was just a complete wow-factor! He looks fairly happy about it for sure ;)
Tweet media one
0
10
82
@SirJoscha
Serjoscha Evers
@SirJoscha
5 years
And a second one for #FossilFriday : cranium of the Late Triassic Saurosuchus from the Ischigualasto Formation, Argentina 🇦🇷, on display @mefpatagonia
Tweet media one
0
18
74
@SirJoscha
Serjoscha Evers
@SirJoscha
5 years
What a day! Besides @Gemma 's paper, my 2nd #PhD paper was published today too (didn't know it would be...), w/ @NHMdinolab & @BensonLabOxford in @thePeerJ . It's about the cranial anatomy of a Cretaceous protostegid & marine adaptation in sea turtles: (1/6)
Tweet media one
3
33
72
@SirJoscha
Serjoscha Evers
@SirJoscha
4 years
Continuation of Solnhofen fossils from Munich! This is a wee turtle, approx 3 cm long (photographed through glass, so nothing for scale). Maybe a baby Eurysternum!? 🐢
Tweet media one
2
11
77
@SirJoscha
Serjoscha Evers
@SirJoscha
8 years
Waiting for CT Scans, I had some time for #FossilFriday art @NHM_London . 95 Ma old sea turtle Rhinochelys
Tweet media one
0
26
65
@SirJoscha
Serjoscha Evers
@SirJoscha
4 years
New paper alert: I am happy to announce that my latest descriptive paper on the cranial osteology of the pleurosternid turtle Pleurosternon bullockii is published today in @thePeerJ , together with @RollotYann & W. Joyce: 1/4
Tweet card media
Cranial osteology of the Early Cretaceous turtle Pleurosternon bullockii (Paracryptodira: Pleuros...

Pleurosternon bullockii is a turtle from the Early Cretaceous of Europe known from numerous postcranial remains. Only one skull has so far been referred to the species. Pleurosternon bullockii...

peerj.com
2
22
68
@SirJoscha
Serjoscha Evers
@SirJoscha
4 years
As someone who has in the past been vocal in criticizing the Ibrahim et al. (2014) paper – particularly the neotype designation, the documentation of the new material, & their taxonomic conclusions – I thought it might be good to say something now, w/ new info being presented 1/n
1
14
68
@SirJoscha
Serjoscha Evers
@SirJoscha
7 years
For #FossilFriday , I finished segmenting this beauty (Solnhofia parsoni TM 4023). Research feat this specimen in the making @BensonLabOxford
Tweet media one
3
21
61
@SirJoscha
Serjoscha Evers
@SirJoscha
2 years
Very fun drawing based on our Allosaurus pathology study from a few years back 🤩
@thepeanutpal
Ian Baylatry
@thepeanutpal
2 years
big al 2
Tweet media one
15
160
1K
0
3
64
@SirJoscha
Serjoscha Evers
@SirJoscha
2 years
Happy #WorldTurtleDay ! Good time to share some sneak previews of different upcoming papers on turtle evolution on which I am lead or senior author 🐢🤩 Wait for evolution, paleontology, and soft tissue anatomy content to drop later this year (or maybe the one after, who knows)
Tweet media one
Tweet media two
Tweet media three
Tweet media four
1
6
66
@SirJoscha
Serjoscha Evers
@SirJoscha
8 years
Meiolania (stem-turtle) tail club @NHM_London seems appropriate for #FossilFriday (at Member's Summer party)
Tweet media one
5
31
65
@SirJoscha
Serjoscha Evers
@SirJoscha
3 years
New paper today in @thePeerJ , with Yann Rollot & Walter Joyce! This is a CT-based reinterpretation of the cranial anatomy of Arundelemys, an Early Creatceous paracryptodire and possible early baenid. Paper: 1/3
Tweet media one
2
22
70
@SirJoscha
Serjoscha Evers
@SirJoscha
3 years
3 🐢-papers accepted w minor revs in one week! Stay tuned for: new pleurodire & 🤩 #palaeoart I'm burning to finally share soon; re-description of a fossil paracryptodire w implications for cranial scute homology; & Jurassic marine turtle w soft tissues & flippers #TurtleThursday
9
7
71
@SirJoscha
Serjoscha Evers
@SirJoscha
5 years
Our paper from July about a new phylogenetic hypothesis of turtles, finding 3 independent origins of marine lifestyles in turtles (excluding pleurodires) and high K/Pg survivorship of those is now published in an issue in @ThePalAss journal Palaeontology!
1
20
65
@SirJoscha
Serjoscha Evers
@SirJoscha
2 years
🐢🤩New paper out today!🤩🐢 Together w/ a team of @mfnberlin researchers Jasper Ponstein, Maren Jansen & Jörg Fröbisch, as well as @jaimiAgray from @UF & @FloridaMuseum , I describe variation in mandibular osteology across extant turtle groups 🐢1/8 OA:
Tweet card media
A systematic compendium of turtle mandibular anatomy using digital dissections of soft tissue and...

The Anatomical Record is an anatomy journal publishing new discoveries in the morphological aspects of molecular, cellular, developmental, evolutionary, and systems biology.

anatomypubs.onlinelibrary.wiley.com
1
24
70
@SirJoscha
Serjoscha Evers
@SirJoscha
1 year
Based on the status quo, the options for repatriation I see are: The state could decide to give it to Brazil, or a court could rule that it is unrightfully in GER, forcing the state to repatriate. I hope one of these will happen, but I can only speak for myself.
1
4
67
@SirJoscha
Serjoscha Evers
@SirJoscha
2 years
I'm very excited to take on my new role as Associate Editor @JournalSystPal , and thankful to be given this opportunity :) I'm looking forward to handling turtle and other reptile submissions to come 🐢🦎🐊
@JournalSystPal
NHM JournalSystPal
@JournalSystPal
2 years
JSP warmly welcomes two new Associate Editors, Erin Maxwell and @SirJoscha to the journal's Editorial board.
1
1
21
1
2
67
@SirJoscha
Serjoscha Evers
@SirJoscha
1 year
This project was well underway when the Ubirajara story broke, making at least me aware of the legality issues with Brazilian fossils. We didn't terminate this (student) project then, but decided to mitigate effects in various ways (incl. the casts).
1
4
66
@SirJoscha
Serjoscha Evers
@SirJoscha
3 years
NEW PAPER w/ @BronzatiMario , @BensonLabOxford , @VTechmeetsPaleo & [next tweet] on archosaur inner ear functional morphology & evolution! Very happy; this took ++hours of Avizo work & lots of thinking too 😃 Paper: 1/x
1
16
67
@SirJoscha
Serjoscha Evers
@SirJoscha
2 years
@TetZoo I think these give a nice sense of scale
Tweet media one
Tweet media two
3
7
63
@SirJoscha
Serjoscha Evers
@SirJoscha
4 years
A small paper, but still ;) The IDs for this were difficult, but we hypothesize that these very fragmentary remains from Langenberg, Germany, provide evidence for the presence of several theropod lineages in this part of Jurassic central Europe.
Tweet card media
Late Jurassic theropod dinosaur bones from the Langenberg Quarry (Lower Saxony, Germany) provide...

Marine limestones and marls in the Langenberg Quarry provide unique insights into a Late Jurassic island ecosystem in central Europe. The beds yield a varied assemblage of terrestrial vertebrates...

peerj.com
0
13
62
@SirJoscha
Serjoscha Evers
@SirJoscha
3 years
Saw my first frozen waterfall!
Tweet media one
1
4
60
@SirJoscha
Serjoscha Evers
@SirJoscha
5 years
Our paper from earlier this year is now out in it's final version: Check it out if you like comparisons between the endosseous inner ear and the actual, underlying organ!
Tweet media one
2
10
61
@SirJoscha
Serjoscha Evers
@SirJoscha
6 years
Check out my new paper w/ @BensonLabOxford on a new turtle phylogeny w/ implications for the timing and number of evol. transitions to marine ecology. Thanks to @ThePalAss (esp. Sally Thomas & Andrew Smith) and the reviewers @JamesFParham & J. Sterli!
Tweet media one
1
33
61
@SirJoscha
Serjoscha Evers
@SirJoscha
1 year
I’m having an exciting week scanning fossils at the Institute for Photon Science and Synchrotron Radiation of @KITKarlsruhe with a novel computed laminography setup that can scan slab fossils. Solnhofen secrets - here we come
Tweet media one
0
3
64
@SirJoscha
Serjoscha Evers
@SirJoscha
3 years
New spinosaur paper just dropped by @palaeoguy12 , @Dave_Hone , @TetZoo & others. Twitter melt down in 3, 2, 1,... Congrats to the authors :)
Tweet card media
New spinosaurids from the Wessex Formation (Early Cretaceous, UK) and the European origins of...

Scientific Reports - New spinosaurids from the Wessex Formation (Early Cretaceous, UK) and the European origins of Spinosauridae

www.nature.com
1
9
60
@SirJoscha
Serjoscha Evers
@SirJoscha
2 years
Accidental turtle hybridization on my screen today. Leatherback mata mata, welcome to this world 🐢😅
Tweet media one
2
0
60
@SirJoscha
Serjoscha Evers
@SirJoscha
1 year
Our decision to publish on this specimen and our ethics statement have been widely criticized. Thanks for all the insights & opinions on this. It seems we did a poor job with the statement - but I need to digest & review all the comments to reflect.
2
3
62
@SirJoscha
Serjoscha Evers
@SirJoscha
4 years
Today we were in the Eichstätt museum, located in a beautiful 14th century castle. It’s inhabitant are even older, like this Jurassic Solnhofia, a turtle fossil prepared from both sides! A paper on this specimen was Walter Joyce’s first, daring to the year 2000
Tweet media one
Tweet media two
1
10
61
@SirJoscha
Serjoscha Evers
@SirJoscha
4 years
Really cool poster design in my opinion!
@CharlotteMBird
Charlotte Bird
@CharlotteMBird
4 years
🚨 Read all about it 🚨 Find out why brains are best @NHM_London #NHMSC20
Tweet media one
3
8
70
2
5
58
@SirJoscha
Serjoscha Evers
@SirJoscha
1 year
As a decision on repatriation was beyond our power, we decided to produce casts & prints to be send to Brazil. The CT data have been available for years, as we published them before we had finished analyzing the fossil. Many think this is not enough – & that's legitimate.
1
3
61
@SirJoscha
Serjoscha Evers
@SirJoscha
4 years
But two spinosaurid taxa in the entire ‚mid‘ Cretaceous of Northern Africa is inconceivable for some, it all has to be Spinosaurus aegyptiacus
2
6
57
@SirJoscha
Serjoscha Evers
@SirJoscha
1 year
The statement "currently, (...) the specimen is property of (...) Baden-Württemberg" was meant to reflect the status quo, not our opinions about where the specimen should reside or the lawfulness of the status quo (which I don't feel qualified to judge).
1
4
59
@SirJoscha
Serjoscha Evers
@SirJoscha
3 years
New #openaccess paper today @thePeerJ – a chapter of Yann Rollot's PhD thesis. Carotid circulation & nerve patterns are important for turtle systematics & evolution – we describe, discuss & figure all extant turtle clades based on 3D data (image 👇).
Tweet media one
1
17
58
@SirJoscha
Serjoscha Evers
@SirJoscha
3 years
We show that lagerpetids bridge the temporal and anatomical gap to pterosaurs. Our phylogeny implies that pterosaur evolution does not require very high rates of evolution if lagerpetids are included as their sister group 3/9
Tweet media one
2
6
58
@SirJoscha
Serjoscha Evers
@SirJoscha
1 year
These will be cool fossils. Although what would also be cool is to see the fossils of the previous expeditions described properly ;) Suchomimus is 25 years “known” now…
@Formorphology
Kiersten Formoso, PhD(istressed)
@Formorphology
1 year
Dino folks, you're all gonna really love the stuff that was found on this expedition!
Tweet media one
7
47
356
4
1
58
@SirJoscha
Serjoscha Evers
@SirJoscha
4 years
Classic Gaffney joke (Proganochelys description, AMNH bulletin, 1990).
Tweet media one
2
8
52
@SirJoscha
Serjoscha Evers
@SirJoscha
3 years
We’re on the cover!
@NaturePortfolio
Nature Portfolio
@NaturePortfolio
3 years
This week on the Nature cover: The path to flight. Meet the closest relatives to early flying vertebrates. Browse the issue here:
0
73
711
0
4
57
@SirJoscha
Serjoscha Evers
@SirJoscha
3 years
Here is a new paper by @Dave_Hone & @TomHoltzPaleo , reinterpreting available data for #Spinosaurus and other spinosaurids as more likely being heron-like, wading animals rather than extremely aquatic pursuit hunters. 1/6
Tweet card media
The ecology of Spinosaurus

Evaluating the ecology of Spinosaurus: Shoreline generalist or aquatic pursuit specialist?

palaeo-electronica.org
1
19
52
@SirJoscha
Serjoscha Evers
@SirJoscha
4 years
Among the cool things when visiting Munich is the random selection of fossils in @O_Rauhut ‘s office. Here is some cool looking therapsid. Don’t know much about synapsids, so no clue if the label is up to date taxonomically, but Someone on twitter will know ;) #FossilFriday
Tweet media one
1
14
56
@SirJoscha
Serjoscha Evers
@SirJoscha
5 years
Saw something running across the street, car in front of me had stopped, said it was an echidna. So I park my car, change flipflops->boots, enter the jungle, follow small noises, go close to where I thought noise went, stand for 30 mins w/o moving, then this guy crawls out:
Tweet media one
Tweet media two
0
0
54
@SirJoscha
Serjoscha Evers
@SirJoscha
7 years
It's #TurtleTuesday ! Segmenting this Apalone softshell today to illustrate some new phylogenetic characters. #PhDchat
Tweet media one
0
14
50
@SirJoscha
Serjoscha Evers
@SirJoscha
5 years
Just opened this beautiful dataset by @tweetIrena ! I lacked a complete Chelydra for my next project, but Irena had one in her @thePeerJ paper on Desmatochelys lowii, so I emailed her, asked if she could share, and now she's part of our project. Thanks Irena!
Tweet media one
1
8
51
@SirJoscha
Serjoscha Evers
@SirJoscha
4 years
Grumpy Caturus fish from Painten, in Denkendorf Museum
Tweet media one
1
9
47
@SirJoscha
Serjoscha Evers
@SirJoscha
4 years
@ThePalAss awarded me and @BensonLabOxford with the "Best Paper Prize" in the Journal Palaeontology! This was a very pleasant surprise, thank you very much! Please check out the paper if you're interested in turtle evolution and systematics 🐢
@ThePalAss
The PalAss
@ThePalAss
4 years
The Best Paper Prize for #Palaeontology was awarded to @SirJoscha and @BensonLabOxford for their paper "A new phylogenetic hypothesis of turtles with implications for the timing and number of evolutionary transitions to marine lifestyles in the group"
1
2
9
3
6
52
@SirJoscha
Serjoscha Evers
@SirJoscha
4 years
Very important paper! Many illustrations of yet unshown specimens, such as the articulated Suchomimus neck. Looks cool, congrats to Nizar and colleagues. (1/n)
2
14
51
@SirJoscha
Serjoscha Evers
@SirJoscha
5 years
One last for this #FossilFriday , if only to prove I occasionally actually work on #turtles : massive humerus of the meiolaniid Gaffneylania
Tweet media one
5
9
52
@SirJoscha
Serjoscha Evers
@SirJoscha
3 years
Wedding-ready 😃
Tweet media one
3
0
52
@SirJoscha
Serjoscha Evers
@SirJoscha
3 years
Thanks to everyone in the team! Thanks also to @SteveBrusatte & Nick Fraser & other reviewers for their comments as well as H. Gee as editor. Also, the artwork produced by Rodolfo Nogueira is absolutely breathtaking! 9/9
Tweet media one
0
4
52
@SirJoscha
Serjoscha Evers
@SirJoscha
10 months
German museums house many Brazilian fossils – but this may be unrightfully so. (State)museums cannot easily repatriate specimens, even if they want to. We wrote an open letter asking to clarify the legal status in Baden-Württemberg & repatriate Irritator.
2
18
53
@SirJoscha
Serjoscha Evers
@SirJoscha
4 years
Bye bye Berlin. @mfnberlin is a fantastic museum and always worth a visit! Thanks to all the staff for their hospitality 😊
Tweet media one
Tweet media two
Tweet media three
Tweet media four
0
5
49
@SirJoscha
Serjoscha Evers
@SirJoscha
4 years
Just gone through pics on my phone fr this week’s research trip. This is a nice shot of Freddy Spindler (l), me (ml), Márton Rabi (mr) & Walter Joyce (r) & weirdo turtle (background). Thanks for all museum staff in Bamberg, Eichstätt & Denkendorf this week for help! #TeamTurtle
Tweet media one
1
3
46
@SirJoscha
Serjoscha Evers
@SirJoscha
4 years
This turtle is awesome! Bit of a shame it’s publicized so much. This way, turtles will never make it to high impact journals that embargo any of the content...
@dinosven
Sven Sachs
@dinosven
4 years
This #FossilFriday I'm sharing images of the weirdest turtle I've ever seen. The yet undescribed #fossil from the #Jurassic limestones of #Germany has a hook shaped mandible and is currently shown at the Dinopark Altmühltal. #biodiversity #nature #paleontology #fossils #turtle
Tweet media one
Tweet media two
9
97
340
4
3
49
@SirJoscha
Serjoscha Evers
@SirJoscha
3 years
Support for our hypothesis of evolutionary relationships comes from across the entire skeleton, and also from neuroanatomical information. Lagerpetids were prob. quite active animals, possibly arboreal & their sensory capabilities might have paved the way for pterosaurs 4/9
Tweet media one
Tweet media two
1
6
48
@SirJoscha
Serjoscha Evers
@SirJoscha
5 years
The only thing that’s currently higher than the number of “ehms” in my practise talks is the level of caffeine in my body. #nervous #2019SVP (Thursday 9:15 am Romer Prize Session)
Tweet media one
3
2
48