Jan Freedmanさんのイラストまとめ

This is a vertebra from the tail of an Allosaurus. It was punctured, pretty severely, by the tail spike of a Stegosaurus.

This one fossil shows an interaction 150 million years ago! The Allosaurus walked away from the fight, injured, but the bone healed.

(Image Ken Carpenter)

@soFISHtication @SamSykesSwears

Sea scorpions (or Eurypterids) were big predators in the seas around 400 million years ago. Strong pincers would make an easy meal out of a trilobite. Some Eurypterids could grow as long as me!!

(Art Patrick Lynch)

This has to be the weirdest use of a scale ever!!! But it kind of works. (Art by Kawasaki Satoshi)

The massive sea scorpion, Acutiramus. It lived in the seas around 400 million years ago in what is now North America and the Czech Republic.

@silverpebble Oh, hell pigs were cool beasts!!!!
(Image Shintokamikaze on Arion Games)

I remember reading Michael Crichton Jurassic Park: The Lost World. He describes the baby Tyrannosaurus rex as looking like a turkey.

He wasn't wrong. Nice post about baby T. rex fossils. (Art Julius Csotonyi)

https://t.co/GOk0K3hVSx

Beautiful smilodon skull on display @naturalsciences along with a wonderful illustration by @TabithaPaterson.

These were pretty incredible cats!

https://t.co/XiL5mn5EGc

Terror birds! Massive beaks. Massive birds. Taller than a human, it was South America's largest carnivore!

Me and @ferwen wrote about them for @TwilightBeasts! (Image Degrange, et al. 2010)

https://t.co/CkZ85d63o8

The awesome skull of the Brontothere, Megacerops. Distantly related to horses and rhinos, this beast lived in North America around 35 million years ago! #FossilFriday
(Photo by me from display @CofCNatHistory; Art D. Bogdanov)

@SamSykesSwears @CofCNatHistory Hell yes. You'll like this post by @DeepFriedDNA - another big beauty! #FossilFriday https://t.co/iBu0t6O8Nj