Richard Carr
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emularge.bsky.social
Richard Carr
@emularge.bsky.social
710 followers 870 following 70 posts
MSc in Geology with a focus on Paleontology and Museum Studies from Fort Hays State University. Works on chondrichthyan paleoichthyology and mosasaurs! He/him
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Reposted by Richard Carr
benj-art-min.bsky.social
Uintatherium WIP
January 18, 2026 at 2:53 AM
Reposted by Richard Carr
extinctmonsters.bsky.social
Some display cases in the old brontosaur hall at AMNH (1956–1990)
Long museum case with complete phytosaur skeleton centered, larger phytosaur skull to the left, and some sort of slab to the right. Chalk drawings above. Long musuem case with Lycaenops and dicynodont skeletons, assorted therapsid skulls on the wall Square museum case with Allosaurus, Camarasaurus, and other skulls. Header says Jurassic Dinosaurs: The Morrison Fauna. Museum case with partial Diplodocus skeleton. It's a pelvis with some dorsal and caudal verts on either side and one attached femur. A skull on a stand beneath.
January 18, 2026 at 2:19 AM
Reposted by Richard Carr
arminreindl.bsky.social
Since it came up in a conversation I ended up googling if the rhinos in the Salzburg Zoo get out in Winter and not only do they, it also makes for some impressive photos
Images by Manuel Bukovics
Two white rhinos standing in front of a hut in ankle deep snow. The foreground features a juvenile while an adult stands slightly behind it. A large white rhino standing in a snowy field, one leg raised slightly. A white rhino plowing through the snow, its snout and horn are covered in snow, the head in general is wet and darker than the rest of the body.
December 27, 2025 at 7:22 PM
Reposted by Richard Carr
mossworm.bsky.social
look at this kind and friendly face and big silly nose
face of a sea spider, a marine arthropod. its body is very small and it is mostly legs. it has a long proboscis and two tiny brown eyes facing the viewer
December 27, 2025 at 6:19 AM
Reposted by Richard Carr
mossworm.bsky.social
Platecarpus & Hoploscaphites
Platecarpus is a mosasaur, an extinct marine reptile with four flippers. This one is covered with colorful squares like a quilt, beginning dark teal at its back and fading towards light blue and yellow on the underside. Two Hoploscaphites, ammonite cephalopods, are swimming nearby.
December 21, 2025 at 2:45 AM
Reposted by Richard Carr
friedmanlab.bsky.social
Out now: latest addition to the Grande volume! Guang-Hui Xu reevaluates Guizhoubrachysomus from the Middle Triassic of southern China. Interpreted as a "luganoiid" in the past, this work argues Guizhoubrachysomus is instead an early dapediid, a group most famous from Jurassic deposits of Europe.
Three-panel figure of a deep-bodied fossil fish. Upper panel shows complete specimen of articulated fish. Bottom left panel shows a close-up photo of skull. Lower right panel shows interpretive drawing of the skull with labeled bones. Large phylogenetic diagram of actinopterygian fishes, emphasizing neopterygians. Each terminal is associated with a small line drawing depicting the taxon.
December 20, 2025 at 3:07 PM
Reposted by Richard Carr
albertonykus.bsky.social
Sensory biology and evidence for nocturnality in the extinct Hawaiian ibis Apteribis: academic.oup.com/icb/advance-... 🪶🧪 (📷 @evolsara.bsky.social et al.)
The skull of an extinct bird with a long, curved bill. Close-ups show features relevant to interpreting its sensory biology.
December 21, 2025 at 2:00 PM
Reposted by Richard Carr
extinctmonsters.bsky.social
I was asked yesterday to post a walkthrough of Life Over Time, the shortest-lived and generally weirdest iteration of the Field Museum’s fossil halls. If you visited between 1994 and 2004, this is the version you saw. I’ve got some time, so let’s do this.
A carnival-like exhibit entrance with a dinosaur skull, coelacanth model, and pantodont skeleton in cases under freak show-style banners labeling them as "Mesozoic terror" and "the fish that wouldn't die'
September 23, 2025 at 9:30 PM
Reposted by Richard Carr
arctomet.bsky.social
Growth dynamics, skeletochronology, and histovariability of the theropod dinosaur Berthasaura leopoldinae - Souza - The Anatomical Record - Wiley Online Library anatomypubs.onlinelibrary.wiley.com/doi/10.1002/...
Growth dynamics, skeletochronology, and histovariability of the theropod dinosaur Berthasaura leopoldinae
Osteohistological sampling on different bones of theropod dinosaur documents discrepant age record, growth, and metabolism. This could result unprecise paleobiological inferences if samplings are bas....
anatomypubs.onlinelibrary.wiley.com
December 15, 2025 at 7:56 PM
emularge.bsky.social
That bottom part of the wing is where chicken nuggets come from
December 15, 2025 at 2:20 PM
Reposted by Richard Carr
knapprew.bsky.social
New paper! Here we look at shape evolution of the mandible in Pelagiaria, a group of open-ocean fishes that includes tuna and mackerel. We find that shape disparity accumulated rapidly at the origin of the clade at around the K/Pg boundary... academic.oup.com/evlett/advan...
Adaptive radiation of pelagiarian fishes at the K/Pg boundary led to rapid diversification of mandible morphology
Abstract. Mandibles represent a key evolutionary innovation that has enabled jawed vertebrates to adapt and diversify in response to a range of food source
academic.oup.com
December 9, 2025 at 10:28 AM
Reposted by Richard Carr
kristalerista.bsky.social
Finally have time to upload things to Sketchfab.

Here's the dead eel I found at an aquarium store!

Thanks to the generosity of the store owner, everyone can see the scary extra jaws these guys have!

sketchfab.com/3d-models/sn...
A snowflake eel CT scanned skeleton. it has scary extra jaws behind its skull that look like a bow with teeth.
December 9, 2025 at 2:46 AM
emularge.bsky.social
Wow, look at how detrimental an effect world wars 1 and 2 had on the progress of taxonomy. Not the type of signal I thought I’d see.
alexwild.bsky.social Alex Wild @alexwild.bsky.social · Dec 9
We are discovering new species at the fastest rate ever.

www.science.org/doi/10.1126/...
Figure with two graphs, "A" labelled "Cumulative number of species" showing a gradual but slighly accelerating rise to near 2 million, and "B", labelled "Number of newly described species" showing 1750 to the present, with peaks around 1920 and 2020, and a giant trough in the second world war.
December 9, 2025 at 8:50 AM
Reposted by Richard Carr
theonion.com
Fact-Checking Trump On Affordability https://theonion.com/fact-checking-trump-on-affordability/
Claim: The cost of living is low. True: The cost of living is much lower than what it will be in a few months.
December 8, 2025 at 9:00 PM
Reposted by Richard Carr
rebdart.bsky.social
A large mosasaur finds a meal in a Komoksodon kwutchakuth. Named in honour of the K'ómoks people of BC and the word for shark, kwutchakuth, in the Comox language. The diving birds are Maaqwi cascadensis whose fossils were found on Hornby Island here in BC. Ma'aqwi means "water bird" in Coast Salish.
A digital painting depicting an ancient underwater predator called a mosasaur with a shark in its mouth. The ocean is blue, however red blood is coming out of the shark's mouth. A school of small fish are eating the blood while diving aquatic birds hunt after the fish. Rays of sunshine filter through the water screen right.
April 23, 2025 at 11:05 PM
Reposted by Richard Carr
extinctmonsters.bsky.social
We can all relax now, ROM put out some press photos over the weekend!

Basically, the space between the Jurassic/hadrosaur hall and the T. rex/Cenozoic hall has been opened up, and now houses the real Zuul fossil plus the cast Gorgosaurus vs Zuul created for a temporary exhibit in 2019.
Stark white museum hall contains an angular white platform. Flat ankylosaur fossil in jacket to the left, dynamically posed casts of ankylosaur and Tyrannosaur to teh right. Mastodon visible between some angled pillars. Better look at the cast Zuul and Gorgosaurus. A projection of an animated green Zuul on the wall behind them. The Zuul fossil, which is a flat armored carapace with a clubbed tail in a jacket. Negs are not visible. Rail in front has a bronze touchable tail club. Wendiceratops cast with Gorgosaurus mounted skeleton behind. Zuul vs Gorgosaurus casts visible on the other side of angled pillars.
December 8, 2025 at 9:56 PM
Reposted by Richard Carr
jopabinia.bsky.social
An (ecto)parasitic #Crustmas. This is Dolops (above), which swims around and attaches to fishes (below), but unlike its relative Argulus, which has suckers, it has hooks to hold on. Also, is bizarrely cute!
🧪🦑
Top: Dolops striata (Bouvier, 1899), preserved young (INPA 2277) removed from freshwater stingray Potamotrygon leopoldi (ANSP 197001, 440 mm maximum disk width) collected in rio Xingu ca. 54 km southeast of Altamira, 3°33'10.7"S, 51°51'22.2"W, 10 Mar 2014. Bottom: Dolops discoidalis (Bouvier, 1899), live specimens (INPA 2274) attached to large redtail catfish, Phractocephalus hemiliopterus (ANSP 198243) collected in rio Xingu channel, 3°24'54.3"S, 51°42'42.1"W, 8 Nov 2014. Photos by M. Sabaj. https://bioone.org/journals/proceedings-of-the-academy-of-natural-sciences-of-philadelphia/volume-166/issue-1/053.166.0105/Annotated-checklist-of-parasitic-and-decapod-crustaceans-from-the-middle/10.1635/053.166.0105.short
December 8, 2023 at 3:42 PM
Reposted by Richard Carr
camthecowboyman.bsky.social
I love mammoth (painted this one having zoomies) 🦣
February 28, 2025 at 11:54 PM
Reposted by Richard Carr
thepalass.bsky.social
A new mid-sized pareiasaur from the upper Permian Naobaogou Formation of China & implications for the phylogenetic relationships of pareiasaurs onlinelibrary.wiley.com/doi/10.1002/...
Photographs of two fossil skulls and an artist's reconstruction of the Permian pareiasaur Yinshanosaurus angustus from North China. The reconstruction focuses on the head of the animal with equisetaleans in the foreground and background. Image created by X.-C. Guo, © IVPP. Top left, holotype IVPP V33181 (Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences). Bottom left, paratype SXNHM V0010.12 (Shanxi Natural History Museum, Taiyuan). Scale bar at the bottom is 50 mm.
June 5, 2025 at 1:43 PM
Reposted by Richard Carr
marathon-rana.bsky.social
I have a new paper out in Environmental Biology of Fishes on the effects of parasites on the life history of White Sands Pupfish! The two main findings being:

🧵(1/3)

rdcu.be/eptDZ
Life history trade-offs mediated by digene parasites in the protected White Sands pupfish (Cyprinodon tularosa)
rdcu.be
June 4, 2025 at 7:17 PM
Reposted by Richard Carr
tjalamont.bsky.social
Please enjoy this ridiculously cute butterfly, which was about the size of my pinkie fingernail. It's in the butterfly family called metalmarks (Riodinidae). Males, like these, have reduced front legs and perch using only the rear 4 (females can use all 6). Sarota acantus; Costa Rica 🐙🌿 #insects
A macro photo, front three-quarter view, of a little butterfly perched on a green leaf. The butterfly has pale green eyes with black speckles, legs covered in thick yellow fuzzy hair, and orange wings sprinkled with metallic light blue patches. It is very cute. A macro photo, side view, of a little butterfly perched on a green leaf. The butterfly has pale green eyes with black speckles, legs covered in thick yellow fuzzy hair, and orange wings sprinkled with metallic light blue bands and patches. It is very cute.
June 3, 2025 at 4:28 PM
Reposted by Richard Carr
signor-molevol.bsky.social
Everything is on fire but we have an awesome new lab logo from @nepeteaa.bsky.social who you should definitely have make one for your organization!
June 4, 2025 at 4:29 PM
Reposted by Richard Carr
sophiesaurus98.bsky.social
Nothing like a visit to the dentist costing more than double what I expected. 😭 Commissions and, if you’re feeling generous, donations would be hugely appreciated right now. Get in touch if you want me to draw some dinosaurs or other creatures for you!
Support Sophiesaurus
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ko-fi.com
June 4, 2025 at 6:17 PM
Reposted by Richard Carr
friel.bsky.social
🐟🧪
royalsocietypublishing.org Royal Society Publishing @royalsocietypublishing.org · May 13
Exploring the evolutionary adaptations of the unique seahorse tail’s muscle architecture through in silico modelling and robotic prototyping: royalsocietypublishing.org/doi/10.1098/... @dadriaens.bsky.social #JRSocInterface #biomechanics #evolution
June 3, 2025 at 8:32 PM
Reposted by Richard Carr
arctomet.bsky.social
J.T. Voris et al. 2025
Ontogenetic Changes in Endocranial Anatomy in Gorgosaurus libratus (Theropoda: Tyrannosauridae) Provide Insight Into the Evolution of the Tyrannosauroid Endocranium
Journal of Comparative Neurology 533: e70056

onlinelibrary.wiley.com/doi/10.1002/...
Ontogenetic Changes in Endocranial Anatomy in Gorgosaurus libratus (Theropoda: Tyrannosauridae) Provide Insight Into the Evolution of the Tyrannosauroid Endocranium
Changes through growth (ontogenetic) in the braincase of the eutyrannosaurian tyrannosauroid Gorgosaurus libratus are discussed. Most notably, brain cavity endocasts of immature Gorgosaurus are found....
doi.org
April 28, 2025 at 3:25 PM