Cretoxyrhina - Alchetron, The Free Social Encyclopedia
Cretoxyrhina - Alchetron, The Free Social Encyclopedia
Dec 4, 2016
alchetron.com
A fish you might not know! Think #pike with an even badder attitude (do pike actually have bad attitudes?). During the last 30 million years of the dinosaurs (90-66 mya, Late #Cretaceous) #Cimolichthys (“white clay fish”) swam the Western Interior Seaway of North America. A shallow sea bisected the US, creating an ocean from the eastern side of the Rocky Mountains to the western side of the Appalachians. At its greatest extent, you could swim from the North Pole to Mexico! This fish isn’t relate
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A fish you might not know! Think #pike with an even badder attitud…
38.4K views9 months ago
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Ginsu, that’s who! #Cretoxyrhina, “Ginsu shark,” is larger than today’s great white shark, possibly reaching 30’ in length. It lived in the Late #Cretaceous Western Interior Seaway of North America. Sharks rarely preserve more than teeth, yet a few specimens, such as this one as well as a stunner at the KU Museum of Natural History, in Lawrence, KS and one at the Sternberg Museum at Fort Hays, KS, preserved vertebrae, fin remnants, skin impression, and even a last meal. This mighty beast is know
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Ginsu, that’s who! #Cretoxyrhina, “Ginsu shark,” is larger than toda…
16.6K views9 months ago
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#tylosaurusthursday The genus name means “protuberance lizard”, the species is progiger which loosely translate to “with a prow”, so named because it lacked teeth in the tip of its mouth, unlike other mosasaurs. These vicious (?), giant Komodo dragon cousins were extremely long, think yellow school bus long (40’), with evidence that they exceeded that magic number. Weight is much harder to determine. Guesses from 5-8 tons. #Tylosaurus was “svelte” when compared to some #Mosasaurus species. It wa
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#tylosaurusthursday The genus name means “protuberance lizard…
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Terrifying! #Tylosaurus means “protuberance lizard” thanks to its long “snout.” The species, T. proriger, means “bearing a prow,” so named because it lacks teeth in the tip of its mouth, unlike other #mosasaurs. These giant Komodo dragon (or are they snake???) kin were extremely long, 40’ , with evidence of longer ones existing in collection drawers. Weight is much harder to determine, ~5-8 tons is often repeated. Tylosaurus was “svelte” when compared to some #Mosasaurus species. It was likely a
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Terrifying! #Tylosaurus means “protuberance lizard” thanks to it…
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Xiphactinus vertebral column celebration! One of my favorite #Xiphactinus mounts, this at the Mountain America Museum of Ancient Life in Lehi, Utah. The lighting is top notch, conveying a twilit world fraught with danger, enhanced by the presence of mosasaurs. a large elasmosaur, and a variety of other toothy beasts!. Xiphactinus lived in the Late Cretaceous Western Interior Seaway of Kansas, but it has been found across the world. Which makes sense for a ferocious, effective predator, look how
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Xiphactinus vertebral column celebration! One of my favorite #X…
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Meet Dorothy from Kansas! This #Elasmosaurus platyurus “thin plate reptile, flat tail” cast Is on display at the Pacific Museum of Earth at the University of British Columbia in Vancouver, Canada. Named by Cope in 1868 from material collected in Kansas, it is the classic “Loch Ness Monster” and the skeleton that Cope put the head on tail, which Marsh gleefully noted. As a vertebral lad, I love the neck of these giant marine reptiles. 70 cervical verts comprise 23’ of a 42’ long beast. That is on
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Meet Dorothy from Kansas! This #Elasmosaurus platyurus “thin pl…
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Now from the right end 😉 Being a tail researcher, I thought I’d share thi…
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