Erlikosaurus

Er-lick-o-sore-us.
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Benjamin Gutierrez

Vertebrate Paleontologist

Benjamin Gutierrez is a leading expert on dinosaurs, particularly the mighty theropods. His fieldwork in South America has uncovered new species and provided insights into dinosaur social structures.

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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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