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Alejandro Casarin

@chalostion

Biólogo. Genética poblacional. Amo Star Wars y las criaturas prehistóricas. Remedio de paleo artista. 🏳️‍🌈

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Latest posts by Alejandro Casarin @chalostion

The Prehistoric Planet Ice Age logo

The Prehistoric Planet Ice Age logo

A photo of a crocodile resting at the edge of a river, its jaws agape. Image by the BBC

A photo of a crocodile resting at the edge of a river, its jaws agape. Image by the BBC

Some days ago I made a thread on Pleistocene crocs in honor of Prehistoric Planet: Ice Age, and now I'm bringing it here too.
Let me prefice this by saying that I of course understand their absence, obviously more unique fauna takes priority and I don't begrudge the team their choice

08.12.2025 11:11 👍 60 🔁 26 💬 2 📌 5
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Happy 120 anniversary to the prized fighter of antiquity, the absolute warlord of the Earth, one of the world's most powerful predators, an incredibly awesome animal, Tyrant King of all Saurians, and my 2nd favorite dinosaur, Tyrannosaurus rex 🦖 🎂

What a fantastic creature...

04.10.2025 14:17 👍 19 🔁 8 💬 1 📌 0
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Postschizotherium intermedium, a large Pliohyracids with a hippo-like head. For almost a hundred year, people can only learn about this animal through its skulls and teeth. With no any thing about the postcranial, it's very hard to accurately reconstruct the entire body shape. 1/

05.08.2025 21:01 👍 101 🔁 29 💬 2 📌 2
Illustration showing a Dunkleosteus trying to eat an ammonite while a group of Stathacanthus swims around them. The ammonite trying to escape is releasing a cloud of ink in an effort to confuse the approaching Dunkleosteus

Illustration showing a Dunkleosteus trying to eat an ammonite while a group of Stathacanthus swims around them. The ammonite trying to escape is releasing a cloud of ink in an effort to confuse the approaching Dunkleosteus

A huge Dunkleosteus terrelli hurls towards a group of ammonites looking for lunch. One of them releases a cloud of ink trying to escape. All this happens while a school of Stethacanthus (a shark-like chondrichthyan) swims by in the Late Devonian sea.

#paleoart #sciart #dunkleosteus

19.05.2025 13:32 👍 566 🔁 163 💬 12 📌 2

Bueno pues ya estoy aquí, y se siente bastante paz la neta.

20.11.2024 15:12 👍 1 🔁 0 💬 0 📌 0
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Sharks after every mass extinction

18.11.2024 14:12 👍 207 🔁 42 💬 3 📌 1