#pentanogmius

[he-who-needs-to-be-silenced]

Niobrara encardia and his pilot children

[knuppitalism-with-ue]

Results from the #paleostream

Pentanogmius, Afrotapejara (a wish by @tadpoles-yay ) and Yuornis

[makairodonx]

Parasaurolophus under the Cloudy Sky

A Pair of Parasaurolophus walkeri in their native forest-wetland habitat which forms what is now the Dinosaur Park Formation in Alberta.

A Tylosaurus proriger shares its shallow water habitat with several fish species, including a pair of Pachyrhizodus caninus chasing a Pentanogmius evolutus at the bottom, as well as a Cretoxyrhina and Protosphyraena in the background.

Kronosaurus queenslandicus, a giant 11-meter-long (more than 36 ft) pliosaur from the Early Cretaceous (120-100 mya) of Australia, named after the leader of the Titans in Greek Mythology.

It is early morning on the grasslands of central China, and a herd of Chilotherium sp. are heading close to the wetlands with a flock of egret-like birds following them.

[ancientmarinereptiles]

Ectenosaurus clidastoides

Art by: Henry Sharpe, https://www.deviantart.com/thebonesharpe/art/Ectenosaurus-and-Pentanogmius-754487576

Name: Ectenosaurus clidastoides

Name Meaning: Drawn out lizard

First Described: 1967

Described By: Russell

Classification: Chordata, Tetrapoda, Reptilia, Squamata,‭ Mosasauridae, ‬Plioplatecarpinae

Ectenosaurus lived during the Late Cretaceous and has been found in Texas and Kansas. It was originally thought to be another species of Clidastes until Dale Russell in 1967 rescued it from being a victim to wastebasket taxonomy, by realizing it’s a new genus. This mosasaur has elongated jaws and what’s really cool about Ectenosaurus is that scales have been found preserved just like in a Platecarpus specimen, but we’ll discuss Platecarpus later down the road. Anyways, the discovery of scales in Ectenosaurus helped paleontologists infer the method in which mosasaurs swam, the scales were small and their orientation indicated that it had a stiff body and the tail was the main force behind their locomotion under water. It wasn’t an anguilliform swimmer (eel-like undulating), but a carangiform swimmer (tail undulating only).

Sources:

http://www.prehistoric-wildlife.com/species/e/ectenosaurus.html

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