iiinova — where your digital self keeps evolving

Reposted by Tosha Hollmann

Anthony of the Badlands @mosasaurologist.bsky.social · 08/10/2026

It's occurred to me just how much donated time and specimen material I've participated in for the Sternberg Museum. This project from 2009 started with a call for some excavation assistance and resulted in a new genus of fish

Massive jacket of yellow-brown fish bones in yellow chalk. The fins are about 3 feet long each

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Jacek Olender @jacekolender.bsky.social · 10/12/2025

Every academic conference in the US is now fucked-fucked, lol.

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Xavier A. Jenkins @semifossorial.bsky.social · 28/08/2025

It’s finally out! Our work addressing the origins of reptiles is published in PCJ! peercommunityjournal.org/articles/10.... We use novel info gleaned from the scan data of dozens of stem reptiles to substantially revise our understanding of early reptile evolution #paleontology #herpetology

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Adikavita @adikavita.bsky.social · 26/05/2025

A great float of Attenborosaurus swiftly navigate their pelagic environment in their hunt for fish. Attenborosaurus (named after Sir David Attenborough) is an extinct marine reptile that existed during the early Jurassic, it was a primitive pliosaurid, closer related to short-necked plesiosaurs.

A painting that depicts a pair of Attenborosaurus- long-necked marine reptile with flippers and tail flukes that they use to navigate the ocean and hunt fish. The pair is surrounded by ammonites, fish and other marine reptiles.

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Tosha Hollmann @toshahollmann.bsky.social · 06/02/2024

Sclerocormus, an extremely strange ichthyosauriform, hunting ammonites

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Tosha Hollmann @toshahollmann.bsky.social · 09/03/2025

Sketch of Suchodus, a large and nasty metriorhynchid from the Oxford Clay

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Tosha Hollmann @toshahollmann.bsky.social · 09/03/2025

These look fantastic!! Just a small note, but Qianichthyosaurus and the rest of toretocnemidae are not members of Parvipelvia, rather placing just outside it :)

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Reposted by Tosha Hollmann

Anthony of the Badlands @mosasaurologist.bsky.social · 04/03/2025

It's #Tylosaurus Tuesday my dudes! Every now and then we find some baby mosasaurs in Kansas that don't quite make it very long in life. A lucky few of them don't end up as shark puke either. Here are 2 premaxilla snoots, the left one from Clidastes and the right from Tylosaurus with a little prow 🧪

2 tiny baby mosasaur snoots, Clidastes with a tiny snout in front of the teeth and Tylosaurus with a much more noticeable thimble of bone for a schnozz.

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Tosha Hollmann @toshahollmann.bsky.social · 22/02/2025

First new painting in a while — Leptonectes tenuirostris (foreground) and Leptonectes solei (background) hunt cephalopods as dusk

Two ichthyosaurs swin through a shoal of squid

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Tosha Hollmann @toshahollmann.bsky.social · 22/02/2025

First new painting in a while — Leptonectes tenuirostris (foreground) and Leptonectes solei (background) hunt cephalopods as dusk

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Tosha Hollmann @toshahollmann.bsky.social · 06/02/2025

Scale-like (or fibrous) structures are also documented on the leading edge of some ichthyosaur fins — not commented on much in literature but potentially an interesting avenue for future research

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Tosha Hollmann @toshahollmann.bsky.social · 06/02/2025

Scales being found only on the flippers here immediately brings to mind cetaceans that roughen and thicken the leading edge of their fins & flippers for hydrodynamic purposes.

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Blue whale news @bluewhalenews.bsky.social · 01/02/2025

Blue whales make among the loudest calls of anything in the ocean... but killer whales cannot hear them at all because their calls are so deep. In my new paper I suggest this is an adaptation to reduce killer whale attacks. onlinelibrary.wiley.com/doi/10.1111/...

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Tosha Hollmann @toshahollmann.bsky.social · 24/01/2025

Dearc sgiathanach, sketch referencing the newly-published osteology

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Reposted by Tosha Hollmann

Heitor Miguel @paleomiguel.bsky.social · 26/12/2024

Forest Interior with Jinzhousaurus. Miguel, 1924. My last piece of the year, inspired by Ludvig Munthe's 1870 painting "Forest Interior". #paleoart #hadrosaur #sciart

A winter scene of a forest, with the chinese hadrosaur Jinzhousaurus on the middle of the composition. On the backround, the forest is illuminated by some mysterious source.

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Tosha Hollmann @toshahollmann.bsky.social · 18/11/2024

The neural arches, which are on the dorsal surface of the vert, do the most to restrict motion of the vertebral column. So there’s just more in the way when the back flexes up rather than down

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Tosha Hollmann @toshahollmann.bsky.social · 18/11/2024

Sketch of porpoise upstroke and downstroke for… something (hopefully)

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Tosha Hollmann @toshahollmann.bsky.social · 04/11/2024

No— Platypterygius is a Cretaceous taxon, and this is Jurassic. You can also tell the fossil doesn’t belong to a derived platypterygiid because of the rounded phalanges, and that it isn’t an ophthalmosaur because of the notching on the anterior digit (something ophthalmosaurs lose)

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Reposted by Tosha Hollmann

Skye McDavid @skyemcdavid.com · 30/10/2024

Come by B66 in the poster session this afternoon for Best Practices for Fossil Vertebrate Skeletal Diagrams by @skeletaldrawing.bsky.social and myself! #2024SVP

Scott and Skye's poster on skeletal diagrams

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Reposted by Tosha Hollmann

Dr. James G. Napoli @jgn-paleo.bsky.social · 25/10/2024

Happy #FossilFriday everyone! Excited to share that very soon, I will be able to share a piece of research that I've been hard at work for years. Not sure if it will release today, but figured I would share a little teaser here...

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Tosha Hollmann @toshahollmann.bsky.social · 17/10/2024

Hello new Bluesky followers- enjoy some Mosasaurus reconstructions. I tried to incorporate the clavicles and interclavicles into these reconstructions, as well as a shallower chest due to lizardy swept-back ribs.

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Reposted by Tosha Hollmann

Dr. Scott Hartman - but not THAT kind of doctor @skeletaldrawing.bsky.social · 17/10/2024

Trying to think of a skeletal to share that I haven't really discussed elsewhere, so here's my take on the skeleton of everyone's favorite giant flying reptile, Quetzalcoatlus. The 2021 monograph by Padian, et al. made this worth tackling.

A skeletal reconstruction of the giant azhdarchid pterosaur Quetzalcoatlus launching itself into the air. With scale bar, copyright Scott Hartman, 2023.

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Reposted by Tosha Hollmann

Joschua Knüppe @joschuaknuppe.bsky.social · 17/10/2024

Hello lovely folks, I will try to be more active here now considering how many bad decisions are made in the other place. Have some recent images from the streams.

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Joanna Kobierska @joannakobierska.bsky.social · 17/10/2024

Fight or hug??? (Anchiornis and Yi)

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Darren Naish @tetzoo.bsky.social · 27/05/2024

Over on Twitter, I've been doing a thing called TetZoocryptomegathread, where I discuss the twists and turns pertaining to given pieces of 'monster' evidence, usually photos. They've been hugely popular. As an experiment, let's see how they fare here. Fingers crossed. Here we go...

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Tosha Hollmann @toshahollmann.bsky.social · 26/05/2024

Guanlingsaurus, my skeletal restoration of this giant ichthyosaur. A short, toothless snout, high vertebral count, and reduced ossification acrodd the skeleton make this a very unique animal

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Tosha Hollmann @toshahollmann.bsky.social · 06/02/2024

Sclerocormus, an extremely strange ichthyosauriform, hunting ammonites

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Tosha Hollmann @toshahollmann.bsky.social · 11/10/2023

Plesioplatecarpus. A drawing from a while back

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Tosha Hollmann @toshahollmann.bsky.social · 11/09/2023

Man I haven’t posted on here in a while- here’s a currently unfinished painting of the supremely weird Sclerocormus

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Tosha Hollmann @toshahollmann.bsky.social · 10/08/2023

I did skeletal and some other illustration work for a new publication by Dr. Andrzej Wolniewicz et al., publishing a new of saurosphargid and a new scheme for sauropterygian evolution. Give it a read! elifesciences.org/articles/83163

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Reposted by Tosha Hollmann

Dr. James G. Napoli @jgn-paleo.bsky.social · 06/08/2023

Hello everyone! For anyone who didn’t know me before, I’m a paleontologist who studies intraspecific variation to understand vertebrate evolution. I’m currently a postdoctoral researcher at NC State on the Dueling Dinosaurs project studying the evolution and growth of tyrannosaurid dinosaurs.

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Tosha Hollmann @toshahollmann.bsky.social · 30/07/2023

It also has flippers. Dinocephalosaurids are close to Tanystropheids, but Dinocephalosaurus’ aquatic habits (far more specialized than Tany) and extreme neck were evolved convergently. Fascinating animal to be sure

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Tosha Hollmann @toshahollmann.bsky.social · 30/07/2023

Wait till you see the enormous neck with 27 vertebrae it has

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Tosha Hollmann @toshahollmann.bsky.social · 29/07/2023

Sketch of Dinocephalosaurus, incl. part of a WIP skeletal. A very strange, aquatic archosauriform.

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Tosha Hollmann @toshahollmann.bsky.social · 28/07/2023

I rarely draw dinosaurs, but here’s a Corythosaurus

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Reposted by Tosha Hollmann

Darren Naish @tetzoo.bsky.social · 26/07/2023

Am totally looking for new people to follow who talk about zoology, especially amphibians, reptiles, birds, mammals living and extinct, plus ecology, conservation, evolution, anatomy, natural history, natural history art. Find me new people to follow (please)!

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Tosha Hollmann @toshahollmann.bsky.social · 25/07/2023

My reconstruction puts it at just over a meter long, scaled from specimen MHNM.KH.386 (an isolated dentary)

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Tosha Hollmann @toshahollmann.bsky.social · 25/07/2023

A reconstruction I did of the Halisaurines Eonatator (the little guy on the bottom), known from a nearly complete skeleton, and Pluridens serpentis, a titanic relative known just from the skull. Such odd proportions!

Pluridens serpentis skull (top) scaled to the largest known skull, Eonatator sternbergii skeleton (bottom) scaled to the holotype and only specimen.

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Tosha Hollmann @toshahollmann.bsky.social · 25/07/2023

Time for an introductory post. Hi! Here’s some of my work.

Skeletal reconstruction of “Redondasaurus” (Machaeroprosopus) gregorii.

Skeletal reconstruction of Platypterygius australis.

Painting of Suevoleviathan disinteger. This was featured in the book “Ancient Sea Reptiles,” authored by Dr. Darren Naish.

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Reposted by Tosha Hollmann

Dr Matt Dempsey @sketchy-raptor.bsky.social · 24/07/2023

3D dinosaur anatomy diagrams from yours truly. The Triceratops muscles are built belly-by-belly around edited scans from the Smithsonian, whereas the bones-only models are my original sculpts, cross referencing scan data, photographs and measurements to ensure accuracy.

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