Shaochilong
Shaochilong | |
---|---|
Restoration of Shaochilong preying on Sinornithomimus | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Clade: | Dinosauria |
Clade: | Saurischia |
Clade: | Theropoda |
Family: | †Carcharodontosauridae |
Genus: | †Shaochilong Brusatte et al., 2009 |
Species: | †S. maortuensis
|
Binomial name | |
†Shaochilong maortuensis (Hu, 1964)
| |
Synonyms | |
|
Shaochilong (meaning "shark toothed dragon") is an
History
The material referred to Shaochilong,
Chure (2002) and Rauhut (2001) suggested that it did not belong to that genus, and was probably a primitive
Description
The individual which IVPP V2885.1 belonged to was probably adult or nearly adult individual, due to the fusion of many elements of the
According to the proportions of its maxilla, Shaochilong was a relatively short-faced carcharodontosaur. In combination with its comparatively small size, it could have had a unique ecological role in comparison to other members of the family.[2]
Shaochilong can be distinguished from other carcharodontosaurids due to having the following autapomorphies:[2]
- A reduced and nearly absent maxillary antorbital fossa.
- No paradental groove on the medial surface of the maxilla.
- Deep vertical grooves located dorsally on the maxillary interdental plates.
- A pneumatic recess which penetrates to the posterior end of the nasal.
- A deep sagittal crest on the frontal.
- A large pneumatic foramen in the anterodorsal corner of the prootic's dorsal tympanic recess.
Classification
Phylogenetic analysis performed by Brusatte and coworkers indicate that Shaochilong is deeply nested within the carchorodontosaurids, the most derived group among the
The following cladogram after Novas et al., 2013, shows the position of Shaochilong within Carcharodontosauridae.[5]
| |||||||||||||||||||||||||||||||||||||
References
- ^ S2CID 25532873.
- ^ doi:10.11646/zootaxa.2334.1.1. Archived from the original(PDF) on 1 December 2017.
- ^ Hu, S.-Y. (1964). "Carnosaurian remains from Alashan, Inner Mongolia." Vertebrata PalAsiatica, 8: 42–63. [In Chinese, with English summary]
- ^ Glut, D. (2003). Dinosaurs - The Encyclopedia - Supplement 3. McFarland Press: Jefferson, NC.
- hdl:11336/102037.
External links
- Shark toothed theropods in Asia – introducing Shaochilong Discoverers' blog