Siamraptor

Sy-am-rap-tor.
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Lilah Turner

Evolutionary Biologist

Lilah Turner investigates how prehistoric animals adapted to changing environments, offering insights into evolution's mechanisms.

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Name

Siamraptor ‭(‬Siam thief/seizer‭)‬.

Phonetic

Sy-am-rap-tor.

Named By

Duangsuda Chokchaloemwong,‭ ‬Soki Hattori,‭ ‬Elena Cuesta,‭ ‬Pratueng Jintasakul,‭ ‬Masateru Shibata‭ & ‬Yoichi Azuma‭ ‬-‭ ‬2019.

Classification

Chordata,‭ ‬Reptilia,‭ ‬Dinosauria,‭ ‬Saurischia,‭ ‬Theropoda,‭ ‬Carcharodontosauria.

Diet

Carnivore.

Species

S.‭ ‬suwati‭

Size

Uncertain due to lack of remains, but holotype individual roughly estimated to be around 7 meters long.

Known locations

Thailand‭ ‬-‭ ‬Khok Kruat Formation.

Time Period

Aptian of the Cretaceous.

Fossil representation

Partial skull bones including jugal,‭ ‬maxilla,‭ ‬premaxaila,‭ ‬approximate rear half of mandible‭ (‬lower jaw‭)‬,‭ ‬at least three scattered vertebrae for neck,‭ ‬dorsal and tail,‭ ‬partial ischiums and lower leg bone.

In Depth

       Siamraptor is a genus of carcharodontosaurid dinosaur that lived in Asia during the early Cretaceous.‭ ‬The holotype individual of Siamraptor is only known from a partial skull,‭ ‬jawbone and a few post cranial bones,‭ ‬so precise details or any unusual features if they existed,‭ ‬are still unknown.‭ ‬These scattered bones however do indicate that the holotype individual of Siamraptor was at least what would be considered a medium sized carcharodontosaurid dinosaur.

       As a carcharodontosaurid dinosaur,‭ ‬Siamraptor would have been a large predator,‭ ‬probably with teeth adapted more for slicing flesh as opposed to crunching through bone.‭ ‬Siamraptor might have hunted plant eating iguanodontid dinosaurs since numerous remains of these kinds of dinosaurs are known from Khok Kruat Formation.‭ ‬These include the genera Sirindhorna,‭ ‬Ratchasimasaurus and the similarly named Siamodon.

Further Reading

-‭ ‬A new carcharodontosaurian theropod‭ (‬Dinosauria:‭ ‬Saurischia‭) ‬from the Lower Cretaceous of Thailand.‭ ‬-‭ ‬PLOS ONE.‭ ‬14‭ (‬10‭)‬.‭ ‬-‭ ‬Duangsuda Chokchaloemwong,‭ ‬Soki Hattori,‭ ‬Elena Cuesta,‭ ‬Pratueng Jintasakul,‭ ‬Masateru Shibata‭ & ‬Yoichi Azuma‭ ‬-‭ ‬2019‭ (‬Jun Liu‭ (‬ed.‭).

SPECIES SPOTLIGHT