Tyler Greenfield

@TylerGreenfieId

Paleontologist. Science writer. Studies sharks, dinosaurs, cephalopods, paleoart, taxonomy, and cryptozoology.

Joined June 2017

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Tyler Greenfield Retweeted

Prehistorica (Christian M.)@Prehistorica_CM · Jul 23

Meet Palaeocampa anthrax, a newly discovered Carboniferous lobopodian, and 150 year old mystery fossil! Palaeocampa is an exceptional lobopodian - it lived in rivers and lakes, bristled with thousands of poisonous spines, and more. 🧵 Open access: nature.com/articles/s4200…

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Tyler Greenfield@TylerGreenfieId · Jul 21

Accepted :)

TTyler Greenfield@TylerGreenfieId · Mar 26

Another manuscript submitted! Here's some hints what it's about...

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Tyler Greenfield@TylerGreenfieId · Jul 20

Make that three spurdogs with supernumerary dorsal fins!

TTyler Greenfield@TylerGreenfieId · Apr 3

Supernumerary dorsal fins are an extremely rare malformation in sharks. They have only been documented twice, in two spurdogs (Squalus acanthias) from the North Atlantic caught in the 1960's.

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Tyler Greenfield@TylerGreenfieId · Jul 15

Guess what prehistoric animal this sketch is supposed to represent.

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Tyler Greenfield@TylerGreenfieId · Jul 7

Facebook AI slop has finally come for my specialty with these ridiculously-fake "Pristis/Onchopristis rostra".

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