Steven Jasinski

For a story from Harrisburg University (@HarrisburgU) on the new hyaenodonts from Pakistan study from my colleagues and myself, you can read about it here: harrisburgu.edu/news/2026-05-2…

Here is an excellent reconstruction of the new hyaenodont, named Metapterodon anari. The reconstruction of this fascinating carnivorous mammal (in the foreground) from the early Late Miocene of Pakistan was done by the incredibly talented Sergey Krasovskiy (@SergeyAtrox1)

Happy to say our new paper is out on hyaenodonts from the Miocene of Pakistan. Worked with the wonderful group of fellow researchers on this, and it includes the new species Metapterodon anari. Can be found here: link.springer.com/article/10.100…, or contact me for a copy.

Easier to digest story from @HarrisburgU on Ahshislesaurus wimani can be found here: harrisburgu.edu/news/2025-10-0…

And here is the artwork by the wonderful Sergey Krasovskiy (@SergeyAtrox1 ) of the new saurolophine hadrosaurid Ahshislesaurus wimani.

So, happy to say that our new paper on a new species of hadrosaur dinosaur is out, meet Ahshislesaurus wimani from the Late Cretaceous of New Mexico. Find it for free through ResearchGate (researchgate.net/publication/39…) or you can contact me about it.

@HodariNundu And I must say I also like this take on our new giant civet Vishnuictis plectilodous too 😃

Several people asked me after the Civettictis drawing if I thought giant prehistoric civet would be dangerous. The recently described Vishnuictis plectilodous (largest known civet?) from Pliocene India may have been Panthera size. Any carnivoran that size deserves respect...

Researchers, incl. HU's Dr. Steven Jasinski, discovered two new carnivoran species from ancient India: Circamustela bhapralensis and Vishnuictis plectilodous. harrisburgu.edu/news/2025-04-0…

We have this reconstructed as a more robust version compared to some modern civets. We made the face a bit shorter, made the body deeper and more robust, to account for some of that extra body mass. The new mustelid Circamustela bhapralensis is hiding in the background too.

And for the other reconstruction of these new carnivores, this is the new giant fossil viverrid Vishnuictis plectilodous done by the amazing @SergeyAtrox1; this giant viverrid grew to the size of some big cats today, probably larger than an adult leopard at over 100 kg.

And for the reconstructions of these new carnivores, this is the new fossil mustelid Circamustela bhapralensis done by the amazing @SergeyAtrox1; this little mustelid was roughly the size of pet ferrets today at perhaps 1.5 kg.

These two new carnivores lived beside each other, and the reconstructions have the species living together as well.

For anyone interested in the paper we recently published on the fossil carnivorous mammals from the foothills of the Himalayas in India, but want it in an easier to read format, here is a press release from @HarrisburgU: harrisburgu.edu/news/2025-04-0…

Our new paper is out on fossil carnivorous mammals from northern India is now out! We describe new species of mustelid and viverrid, as well other fossils. Great group of researchers I was able to work with on this! The paper can be found here: link.springer.com/article/10.100….

For anyone interested, I will be giving a talk about tyrannosaurs tomorrow at the Mineral Treasures and Fossil Fair in Plymouth Meeting at the Lulu Temple for the DVPS. Just northwest of Philly. Talk is at 11 AM. You can always look up Lulu Temple to get directions.

🎉 Top 10 News Stories of 2024: #2 HU’s Dr. Steven Jasinski co-led research identifying a new species of predatory dinosaur: Tyrannosaurus mcraeensis! harrisburgu.edu/news/tyrannosa…

@PaleoJZ Congratulations!

Celebrated the bicentennial anniversary of naming of Megalosaurus by graduating with a Master’s in Palaeobiology from the University of Bristol. Couldn’t be more happier and of course had to take a picture with Theco to commemorate the occasion!! #bristolgrad #paleontology

Dr. Jasinski, part of the Department of Environmental Science and Sustainability at HU, recently sat down with @Scott_LaMar on @WITF The Spark to talk about the discovery of new dinosaur, T-mac.🦕 👂bit.ly/TheSpark-T-Mac #Paleontology #DinosaurDiscovery #HarrisburgU

@HarrisburgU New News article out from @HarrisburgU on our recent paper naming the new tyrannosaur, glad to see it has started so many conversations and debates!

🦖 Researchers, including Dr. Steven Jasinski from HU, reveal Tyrannosaurus mcraeensis, a predator predating T. rex. This finding fills gaps in the T. rex evolutionary timeline. Read more: bit.ly/dinosaur-disco… #DinosaurDiscovery #Trex #Paleontology #harrisburguniversity