#claosaurus

[katborg82]

An unfortunate hadrosaur has been washed out into the western interior seaway, and it's attracting quite the crowd.

[fundinofactoftheday]

Dinofact #109

Edmontosaurus' taxonomic history is quite complicated, with specimens belonging to E. annectens being classified as many other species, such as Hadrosaurus, Diclonius, and Claosaurus, as well as the dubious genera Trachodon and Thespesius, and, now synonymous with Edmontosaurus, the genera Anatosaurus and Anatotitan.

Source: Wikipedia

[veloci-raptor]

A Day in Niobrara

1. Hesperornis regalis 2. Nyctosaurus gracilis 3. Pteranodon longiceps 4. Claosaurus agilis 5. Niobrarasaurus coleii 6. Gillicus arcuantus 7. Enchodus petrosus 8. Platecarpus tympaniticus 9. Dolichorhynchops osborni 10. Protostega gigas 11. Clidastes prophython 12. Tylosaurus proriger 13. Bonnerichthys gladius 14. Ptychodus mortoni 15. Styxosaurus snowii 16. Xiphactinus audax 17. Cretoxyrhina mantelli

[horrible-lizards]

Claosaurus, 1920′s

[lindahall]

Charles Emerson Beecher – Scientist of the Day

Charles Emerson Beecher, an American paleontologist, was born Oct. 9, 1856.

(read more...)

[a-dinosaur-a-day]

Claosaurus agilis, “C. affinis”

By Jack Wood on @thewoodparable

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Name: Claosaurus agilis, “C. affinis”

Name Meaning: Broken Reptile

First Described: 1890

Described By: Marsh

Classification: Dinosauria, Ornithischia, Genasauria, Neornithischia, Cerapoda, Ornithopoda, Iguanodontia, Dryomorpha, Ankylopollexia, Styracosterna, Hadrosauriformes, Hadrosauroidea

Claosaurus is a Hadrosauroid known from the Campanian age of the Late Cretaceous, approximately 87 to 82 million years ago. It was found in Smoky Hill River in Kansas, and another species was named based on remains found in the Pierre Shale in South Dakota, but it’s unlikely that they actually belong to the same genus. The original material of this second species, however, has since been lost. The first species is known from an articulated skeleton and partial skull fragments, and it had a slender body and slim feet with long legs, small arms, and a long and stiff tail. It would have been about 3.5 meters long and about 475 kg in weight, walking on its hind legs primarily and dropping onto its forelimbs for grazing. It is possible that the remains found of it were due to its carcass washing out into the Western Interior Seaway. 

Source:

https://en.wikipedia.org/wiki/Claosaurus

Shout out goes to @sprk-monky!

[dino-sours]

Meet a Mount: Peabody Edmontosaurus

Taxon: Edmontosaurus (formerly “Claosaurus”) annectens

Specimen Number: YPM 2182

Dimensions: 29 ft long, 13 ft high

Year Created: 1901

There are plenty of Edmontosaurus skeletons on display today, but the Yale mount is noteworthy because of its remarkably modern appearance. Its raised tail, horizontal posture, and energetic gait all reflect current thinking about dinosaur posture and locomotion. And yet, it was built at the turn of the century, back when paleontologists supposedly all thought of dinosaurs as lethargic lizards.

This specimen was collected in Wyoming by John Bell Hatcher. Charles Beecher selected it for the Peabody Museum’s first fossil mount because it was nearly complete and mostly articulated. Beecher attempted to preserve the fossils within their original matrix wherever possible. Since the skeleton was somewhat laterally compressed, Beecher kept the right side mostly in situ and built up the left in high relief. The head and neck were technically never removed from their matrix block, but since the head was found curved under the body it had to be rotated into its life position. All told, only the right ribs, the corocoids, the final two-thirds of the tail, and some of the vertebral processes were reconstructed.

[antiwhat]