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Matt McKeown

@mattmckeown

He/him. Paleontology PhD Candidate in Anatomical Sciences at Stony Brook University. Interested in the functional anatomy of metriorhynchoid thalattosuchians and other mesozoic marine reptiles

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24.07.2023
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Latest posts by Matt McKeown @mattmckeown

Screenshot of Dimetrodon from Surviving Earth and the concept art of it

Screenshot of Dimetrodon from Surviving Earth and the concept art of it

Screenshots of baby Ischiguastia and my concept art of it

Screenshots of baby Ischiguastia and my concept art of it

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As the time to talk #SurvivingEarth nears, I wanted to say that I’m extremely proud to have been part of the amazing team who worked on it

I was commissioned by Tim Haines (producer of Walking with Dinosaurs) and his team, to create the concept art for MANY animals for this project!

#paleoart

04.03.2026 18:00 πŸ‘ 241 πŸ” 65 πŸ’¬ 10 πŸ“Œ 2
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this cures what ails me every time

04.11.2024 22:34 πŸ‘ 10283 πŸ” 4096 πŸ’¬ 55 πŸ“Œ 67
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CRUROTARSI🐊 these are only a few examples of how diverse the lineage Crocodiles come from used to be 🐊 #crurotarsi #pseudosuchia #paleoart #purussaurus #deinosuchus #postosuchus #plesiosuchus #arizonasaurus #phytosauria

28.02.2026 12:51 πŸ‘ 178 πŸ” 58 πŸ’¬ 7 πŸ“Œ 3
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New fossils may settle debate over mysterious sail-backed spinosaurs Spinosaurs have sometimes been portrayed as swimmers or divers, but a new species of these dinosaurs bolsters the idea that they were more like gigantic herons

In which I provide a few thoughts on the new Spinosaurus species, S. mirabilis.

www.newscientist.com/article/2516...

I also stressed the deep connections between one of the study authors - Nathan Myhrvold - and Geoffrey Epstein to New Scientist. They didn't mention it, neither has anyone else.

19.02.2026 23:59 πŸ‘ 464 πŸ” 173 πŸ’¬ 6 πŸ“Œ 10
Evolutionary Morphology Research Group – The Kriwet Lab Web Site on Phylogenetics and Evolution of Vertebrates

The Evolutionary Morphology Research Group (EvoMoRG: www.evomorg.org) at the Department of Palaeontology of the University of Vienna seeks a motivated PhD student (University Praedoc Assistant) as soon as possible.

For more information visit: jobs.univie.ac.at/job/Universi...

19.02.2026 11:18 πŸ‘ 4 πŸ” 10 πŸ’¬ 0 πŸ“Œ 0
Assistant Professor Vertebrate Functional Morphologist #26-24 The Department of Biology at California State University, Northridge (CSUN) is seeking a tenure-track faculty member in Vertebrate Functional Morphology.

My department at CSU Northridge is hiring a vertebrate functional morphologist! We've got a great EEB group, and we're looking for someone to carry forward a tradition of enriching organismal courses and community-engaged research. App review starts March 15

csucareers.calstate.edu/mob/cw/en-us...

18.02.2026 23:54 πŸ‘ 69 πŸ” 90 πŸ’¬ 2 πŸ“Œ 2
Flattened fossils in a pale sandstone showing a long, catshark-shaped shark from the Jurassic. Below are grey silhouettes of these body shapes and a palaeoart reconstruction of the shark in life

Flattened fossils in a pale sandstone showing a long, catshark-shaped shark from the Jurassic. Below are grey silhouettes of these body shapes and a palaeoart reconstruction of the shark in life

Check out our new #OpenAccess paper in @commsbio.nature.com redescribing bewhiskered Jurassic shark Bavariscyllium, led by Sebastian Stumpf. Although relationships hard to pin down, its catshark-esque form shows sharks explored varied body shapes from the start. πŸ¦ˆγ€°οΈ

www.nature.com/articles/s42...

17.02.2026 19:48 πŸ‘ 76 πŸ” 28 πŸ’¬ 1 πŸ“Œ 1
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PhD Research Fellows in geosciences, planetary or exoplanetary sciences – up to three positions (294610) | University of Oslo Job title: PhD Research Fellows in geosciences, planetary or exoplanetary sciences – up to three positions (294610), Employer: University of Oslo, Deadline: Sunday, March 1, 2026

Apply for PhD Fellowships at the Centre for Planetary Habitability in Oslo! There are projects for geologists, paleontologists, paleobiologists, astrobiologists, stats-y folks, geoscientists and planetary folks! www.jobbnorge.no/en/available...

11.02.2026 11:54 πŸ‘ 9 πŸ” 13 πŸ’¬ 0 πŸ“Œ 0
Ophthalmosaurus skeleton mount positioned as if about to eat the camera

Ophthalmosaurus skeleton mount positioned as if about to eat the camera

POV: you are ichthyosaur food

11.02.2026 11:56 πŸ‘ 44 πŸ” 12 πŸ’¬ 4 πŸ“Œ 0
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Job Opportunity at the RVC: Lecturer / Senior Lecturer in Biomedical Sciences We have an exciting opening for up to two academics at Lecturer or Senior Lecturer level to join the Department of Comparative Biomedical Sciences at our Camden campus. Β The posts are suitable for res...

2 RVC faculty jobs are advertised now!
Lecturer / Senior Lecturer in Biomedical Sciences
Comparative Biomedical Sciences Department
Location: Camden (King's Cross, London)
Very broad search in the CBS department's remit
jobs.rvc.ac.uk/Vacancy.aspx...
EDI-friendly

10.02.2026 11:36 πŸ‘ 0 πŸ” 6 πŸ’¬ 0 πŸ“Œ 0
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Another #DAWNDINOS paper submitted! A deep dive into locomotor function and biomechanics in the awesome Late Triassic "rauisuchian" Postosuchus.

09.02.2026 11:03 πŸ‘ 69 πŸ” 22 πŸ’¬ 4 πŸ“Œ 1
Our Departments - The RVC - About - Royal Veterinary College, RVC The RVC's academic departments reflect the many challenges facing society today and ensures that our research, teaching and clinical activities continue to innovate and lead the way in veterinary medicine and science

RVC will be advertising 2 new faculty posts soon, broadly in comparative biomedical science (our department name). Email me jhutchinson@rvc.ac.uk to get informed (I am not on the search panel; just helping). www.rvc.ac.uk/about/the-rv...

06.02.2026 16:37 πŸ‘ 2 πŸ” 7 πŸ’¬ 0 πŸ“Œ 0
Ediacaran fossil surface on the coastline of Newfoundland, Canada

Ediacaran fossil surface on the coastline of Newfoundland, Canada

This #FossilFriday I am delighted to share a postdoctoral position that we @deeptimeecology.bsky.social @camzoology.bsky.social are advertising on early animal evolution in the #Ediacaran.

www.cam.ac.uk/jobs/postdoc...

06.02.2026 11:32 πŸ‘ 35 πŸ” 31 πŸ’¬ 1 πŸ“Œ 2
The first attempt to reconstruct Tyrannosaurus rex, in the 1905 paper in which Osborn named it and a panel mount of the skeleton (middle), from the 1916 paper in which Osborn described and named it.

The first attempt to reconstruct Tyrannosaurus rex, in the 1905 paper in which Osborn named it and a panel mount of the skeleton (middle), from the 1916 paper in which Osborn described and named it.

Founders of modern paleontology, and their contributions to systemic racism, classism and sexism (🧡)

Henry Osborn (1857–1935), responsible for naming of Tyrannosaurus & Velociraptor; president of ANHM.
Co-founder of the American Eugenics Society. Contributing to books later praised by Hitler.

02.02.2026 14:22 πŸ‘ 719 πŸ” 294 πŸ’¬ 21 πŸ“Œ 34
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My first book, "Die Welt der Plesiosaurier," is now officially out!

It has nearly 300 pages and features a state-of-the-art overview of plesiosaurs. The book is also filled with numerous photographs and wonderful illustrations by @joschuaknuppe.bsky.social. 1/3
#book #fossils #plesiosaurs #nature

03.02.2026 17:47 πŸ‘ 53 πŸ” 12 πŸ’¬ 4 πŸ“Œ 0
The osteology, taxonomy, and phylogenetic affinities of the Early Jurassic plesiosaur Lusonectes sauvagei The transition from the Early to the Middle Jurassic was marked by significant restructuring of plesiosaur communities. While knowledge of the earliest Middle Jurassic plesiosaurs is generally limited...

I'm pleased to announce that our reassessment of the Portuguese plesiosaur Lusonectes sauvagei was published yesterday in PeerJ. 1/4

Link to publication: peerj.com/articles/206...

#palaeontology #portugal #plesiosaur #jurassic

03.02.2026 16:52 πŸ‘ 5 πŸ” 2 πŸ’¬ 1 πŸ“Œ 0

Herrera, Y. et al. 2026. A complete morphological description of Dakosaurus maximus (Crocodyliformes: Thalattosuchia) with further insights into their palaeoecology. Palaeontologia Electronica, 29(1):a4.
doi.org/10.26879/157...

18.01.2026 13:15 πŸ‘ 9 πŸ” 3 πŸ’¬ 1 πŸ“Œ 0
Skeletal reconstruction of specimen DMA-JP-2009/001. Like other metriorhynchids its long with a streamlined body, triangular and deep skull with large eyes, long teeth, a tail fluke and very short arms.

Skeletal reconstruction of specimen DMA-JP-2009/001. Like other metriorhynchids its long with a streamlined body, triangular and deep skull with large eyes, long teeth, a tail fluke and very short arms.

The fossil of DMA-JP-2009/001 as it is preserved. The skeleton is complete and posed in a U-shape, with the head curving up to the right and the tail to the left. A scalebar is shown equivalent to 1 meter.

The fossil of DMA-JP-2009/001 as it is preserved. The skeleton is complete and posed in a U-shape, with the head curving up to the right and the tail to the left. A scalebar is shown equivalent to 1 meter.

New paper just dropped finally describing a complete specimen of Dakosaurus maximus and what a beauty it is. Some highlights, in addition to this being a long time coming, is the presence of bitemarks on the face and chondrichthyan material in the stomach
doi.org/10.26879/1577

18.01.2026 11:09 πŸ‘ 87 πŸ” 25 πŸ’¬ 1 πŸ“Œ 0
Three giant ichthyosaurs emerge from the water in front of a hazy, cloudy sky. The left animal has the arms of a large squid emerging from its mouth, and the right has surfaced far enough to show its front left flopper. The central animal looms above us, eclipsing the sun with its enormous snout. Two pterosaurs fly past the closest specimen, dwarfed by the emergent swimmer like pigeons circling a cathedral spire.

Three giant ichthyosaurs emerge from the water in front of a hazy, cloudy sky. The left animal has the arms of a large squid emerging from its mouth, and the right has surfaced far enough to show its front left flopper. The central animal looms above us, eclipsing the sun with its enormous snout. Two pterosaurs fly past the closest specimen, dwarfed by the emergent swimmer like pigeons circling a cathedral spire.

SPPOOOSSSHHH... PHHHFFFFFFF... SSSSSSHHHHHHHH...

To paraphrase Bob Ross, you have to make the noises when looking at #paleoart, otherwise it doesn't work.

2018 illustration of giant Triassic ichthyosaurs Shonisaurus, surfacing in waters that once covered Nevada. #art #fossil #paleontology #sciart

16.01.2026 13:25 πŸ‘ 404 πŸ” 113 πŸ’¬ 10 πŸ“Œ 1
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Soft-tissue preservation in an ichthyosaur from the lower Cretaceous (Barremian - Aptian) of Colombia In recent years, global research on soft-tissue preservation in fossils has grown significantly, offering insights into the biology, taphonomy, and di…

Soft-tissue preservation in an ichthyosaur from the lower Cretaceous (Barremian - Aptian) of Colombia
www.sciencedirect.com/science/arti...

16.01.2026 18:15 πŸ‘ 6 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0
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What do you call a reptile that looks like a lizard but isn't? I'm Nothosaurus...

Helping to understand ecosystem recovery after the PT-extinction, a large new nothosaurian is described, adding to the evidence of large predators in the Tethys shallow seas! πŸ§ͺπŸ‘‡
doi.org/10.1093/zool...
#FossilFriday

16.01.2026 11:18 πŸ‘ 27 πŸ” 12 πŸ’¬ 0 πŸ“Œ 2
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Senior Lecturer/Associate Professor in Biodiversity The Department of Biology was established in 2010 through the merger of the Departments of Ecology, Cell and Organism Biology, Biological Undergraduate Education, and the Biological Museums. The depar

Come and join me and my colleagues at the Department of Biology, #LundUniversity in #sweden! We have am open position as Senior Lecturer/Associate Professor in Biodiversity.

Apply here no later than February 11 2026:

https://lu.varbi.com/en/what:job/jobID:848749/type:job/where:4/apply:1

20.12.2025 15:58 πŸ‘ 77 πŸ” 117 πŸ’¬ 0 πŸ“Œ 1
Apply - Interfolio {{$ctrl.$state.data.pageTitle}} - Apply - Interfolio

Post-Doctoral Opportunity in Evolutionary and Conservation Genomics!

If you are curious and passionate about ecology, evolution and the natural world come work with me in the Department of Biology at NYU!

More details here!
apply.interfolio.com/180051

14.01.2026 20:47 πŸ‘ 24 πŸ” 21 πŸ’¬ 0 πŸ“Œ 0
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Postdoctoral position in History of Philosophy at the Faculty of Humanities, University of Copenhagen

=> Philosophy job Copenhagen – postdoc early modern philosophy – Scandinavian and Latin required
employment.ku.dk/faculty/?sho...

07.01.2026 12:19 πŸ‘ 7 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0
Natural History Research Experiences

Only 7 more days to apply for an NMNH Research Undergrad internship/experience! naturalhistory.si.edu/research/nat...

09.01.2026 20:47 πŸ‘ 7 πŸ” 11 πŸ’¬ 0 πŸ“Œ 0
Last years field assistant holding a Manx Shearwater on the isle of Rum (under a towel), retrieving a GPS device after a bird has returned from a foraging trip!

Last years field assistant holding a Manx Shearwater on the isle of Rum (under a towel), retrieving a GPS device after a bird has returned from a foraging trip!

We are looking to hire a Seabird Field Assistant for 2026 for our Manx Shearwater research project.

Please share this to anyone who'd like to get out in the field this summer and learn about biotelemetry, bird handling and research into animal behaviour.

drive.google.com/file/d/1SGZt...

05.01.2026 10:09 πŸ‘ 68 πŸ” 72 πŸ’¬ 1 πŸ“Œ 4
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NEW ARTWORK TO START 2026

Here's "Deep Blue Buffet," commissioned by The Etches Collection. Featured, from the Late #Jurassic Kimmeridge Clay, are #SeaRex #Hybodus #Hypsocormus #Metriorhynchus #Aspidorhynchus & #Allothrissops

#SciArt #PaleoArt #MarineReptiles #Pliosaurs #Pliosaurus #JurassicWorld

08.01.2026 17:15 πŸ‘ 519 πŸ” 162 πŸ’¬ 12 πŸ“Œ 5
Artist's impression of rocks on a barren ocean floor, devoid of life, tectonism, or volcanic activity. Europa's seafloor is probably a bit like this, but in absolute darkness (which doesn't make for all that compelling a picture).

Artist's impression of rocks on a barren ocean floor, devoid of life, tectonism, or volcanic activity. Europa's seafloor is probably a bit like this, but in absolute darkness (which doesn't make for all that compelling a picture).

New paper alert!

tl;dr: the seafloor of Europa is probably tectonically inert, meaning little to no active fracturing that could expose fresh rock to seawater.

Without such water–rock reactions the prospect for there being life within Europa just took a big hit.

A thread:

06.01.2026 17:55 πŸ‘ 385 πŸ” 108 πŸ’¬ 14 πŸ“Œ 18
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Finally out! We studied the retinas of the longest-living vertebrate, the Greenland shark, and found that the retinas remain remarkably healthy in animals around 150 years old. What is the mechanism? It may be a highly efficient DNA repair system. Enjoy!
www.nature.com/articles/s41...

06.01.2026 01:40 πŸ‘ 213 πŸ” 85 πŸ’¬ 7 πŸ“Œ 11
AMNH REU

AMNH REU

Come learn with us! #REU!

18.12.2025 21:26 πŸ‘ 17 πŸ” 20 πŸ’¬ 0 πŸ“Œ 3