Erlikosaurus

Er-lick-o-sore-us.
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Emerson Winslow

Paleoichthyologist

Emerson Winslow delves into the underwater world of prehistoric fish, uncovering the mysteries of early marine life. His discoveries have enhanced understanding of vertebrate evolution in aquatic environments.

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Name

Erlikosaurus ‭(‬Erlik's lizard‭)‬.

Phonetic

Er-lick-o-sore-us.

Named By

Altangerel Perle‭ ‬-‭ ‬1980.‭

Classification

Chordata,‭ ‬Reptilia,‭ ‬Dinosauria,‭ ‬Saurischia,‭ ‬Theropoda,‭ ‬Therizinosauridae.

Diet

Herbivore.

Species

E.‭ ‬andrewsi

Size

Skull about 25 centimetres long. Body size uncertain due to lack of remains, but roughly estimated to be about 3.4 meters long.

Known locations

Mongolia‭ ‬-‭ ‬Bayan Shireh Formation.

Time Period

Cenomanian to Santonian of the Cretaceous.

Fossil representation

Almost complete skull with mandible‭ (‬lower jaw‭) ‬and partial post cranial remains.

In Depth

       Named after Erlik,‭ ‬the demon king in Mongolian mythology,‭ ‬Erlikosaurus was a ground breaking discovery as it was the first therizinosaurid skull known to science.‭ ‬Despite the overall lack of other skeletal material,‭ ‬this skull made Erlikosaurus a model for other therizinosaurids,‭ ‬which at the time were only known from their post cranial remains,‭ ‬to be based on.‭ ‬That has worked both ways however,‭ ‬with post cranial material from other therizinosaurids filling in for Erlikosaurus’s missing skeleton.‭ ‬Erlikosaurus has a particularly strong association with the related Segnosaurus from the same fossil formation.

Further Reading

– Segnosauria, a new infraorder of carnivorous dinosaurs. – Acta Palaeontologica Polonica 25(2):187-195. – R. Barsbold & A. Perle – 1980. – Cranial myology and bite force performance of Erlikosaurus andrewsi : a novel approach for digital muscle reconstructions. – Journal of Anatomy. 222 (2): 260−272. – S. Lautenschlager – 2013.

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