Steven Jasinski

Paleontologist, PhD, Department of Paleontology and Geology at the State Museum of Pennsylvania🦖

[Steven Jasinski @JasinskiSe]

These stereospondyl amphibians would have been predators, probably ambush predators, and have been sometimes called "toilet-seat heads" as they had very flat heads that can sometimes look like toilet seats, artwork by Jonathan Kuo

[Steven Jasinski @JasinskiSe]

For #FossilFriday, here is a lower jaw of the stereospondyl amphibian Koskinonodon perfectus from the Late Triassic of Pennsylvania, at @StateMuseumPA, these animals would have been about the size of an adult person, but may have gotten to 10 feet long

[Steven Jasinski @JasinskiSe]

Very proud of her, she did great and it has been wonderful working with her so far! She is finding out how Late Devonian ecosystems and faunas were changing in Pennsylvania during a critical time

[State Museum of PA @StateMuseumPA]

Congrats to @HarrisburgU sophomore Kaiya Reed! This morning she gave a presentation based on Late Devonian of PA fossil specimens from our collection! #paleontology #fossils

[Steven Jasinski @JasinskiSe]

New state amphibian for Pennsylvania, just ashame they aren't more common here

[PA Historical & Museum Commission @PHMC]

It's official! Lawmakers have named the Eastern hellbender Pennsylvania's official amphibian. Here's a bit of background on the "Cryptobranchus alleganiensis." 👉 https://t.co/nQ8xGbaCw1

[Steven Jasinski @JasinskiSe]

As today is International Bat Appreciation Day, I wanted to show an image of the holotype of the fossil bat Icaronycteris index from the early Eocene Green River Formation, just over 50 million years old, bats are amazing! #batappreciationday #bats #holotype #fossils

[Steven Jasinski @JasinskiSe]

The variety of shapes and morphology in fishes is pretty amazing, not to mention many of the incredible fossils of past forms

[Oceana @oceana]

Seahorses are pretty majestic.

There are around 36 seahorse species, which are found in tropical and temperate coastal waters where they swim upright among seaweed and other plants. Their tails are curved and flexible, and can be used to grasp objects!

[Steven Jasinski @JasinskiSe]

Looking for a new exhibits chief at @StateMuseumPA, if interested be sure to apply soon!

[State Museum of PA @StateMuseumPA]

Join our team in Harrisburg! Application deadline April 19, 2019!

[Steven Jasinski @JasinskiSe]

Briefly made a new friend tonight, as this little one, Anaxyrus americanus americanus, the Eastern American toad, needed some help crossing a road #savetheanimals

[Joschua Knüppe @JoschuaKnuppe]

Was just informed that the annual Lanzendorf award competition has opened. Since it worked out so well during the Summonengh2018, and because I know quite a few will work on new stuff for this I suggest the hashtag #LanzendorfWIPs to share and discuss the process. 1/4 #paleoart

[Steven Jasinski @JasinskiSe]

Beautiful formations in @CrystalCavePA near Kutztown, PA, caves are quite amazing, but they are easily destroyed and we must protect them

[Steven Jasinski @JasinskiSe]

Some rarely seen birds for the area showing up in central Pennsylvania! Love the wildlife!

[Rare Bird Alert @rbabox]

A Little Gull has just been confirmed in Dauphin County, Pennsylvania (CODE 3) https://t.co/SH7KLb6cQt #ABARare #birding

[Rare Bird Alert @rbabox]

A Black-headed Gull has just been confirmed in Perry County, Pennsylvania (CODE 3) https://t.co/knJNo1fkTb #ABARare #birding

[Rare Bird Alert @rbabox]

A Black-headed Gull has just been confirmed in Dauphin County, Pennsylvania (CODE 3) https://t.co/rKJu3lW8Ym #ABARare #birding

[Steven Jasinski @JasinskiSe]

@ChrisWidga @ETSU_Paleo @CMIPalaeo @etsu @GrayFossilSite @SherrodLibrary Turtles you say?

[Steven Jasinski @JasinskiSe]

@SteveBrusatte This is supposedly the first paper of "many" on the locality, so have some things been purposefully withheld from this paper? I suppose time will tell

[Steven Jasinski @JasinskiSe]

@paleodentist @VanderbiltU A 7 out of 9 feels like a weird rating system

[Steven Jasinski @JasinskiSe]

Loving it!

[Thomas R. Holtz, Jr. 🦖💕 (he/him) @TomHoltzPaleo]

Getting the ball rolling:

[Steven Jasinski @JasinskiSe]

That's right! Some love for the emydids!!!

[National Aquarium @NatlAquarium]

In honor of #MarylandDay, the diamondback terrapin is our Animal of the Week!

The terrapin is Maryland's state reptile and the only turtle species in North America to live solely in brackish water—a mixture of fresh and salt water—like the tidal waters of the Chesapeake Bay.