Indosinosuchus

Indosinosuchus ("Indochinese crocodile") is a genus of teleosaurid neosuchian that lived during the Late Jurassic in what is now Thailand. It contains two species, the type species I. potamosiamensis and I. kalasinensis, both recovered from the lower Phu Kradung Formation.[2][1][3] It is unique among other named thalattosuchians, with its remains discovered from freshwater deposits, suggesting that at least some members of this group didn't live in the sea.[1] It was a relatively large reptile, measuring 4 m (13 ft) long and weighing 140 kg (310 lb).[4] The age of Indosinosuchus is unclear, as vertebrate fossils like Indosinosuchus support a Late Jurassic age, while palynological data suggests an Early Cretaceous (Berriasian) age.[3][5]

Indosinosuchus
Temporal range: Late Jurassic,
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Holotype skull of I. potamosiamensis
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Clade: Pseudosuchia
Superorder: Crocodylomorpha
Suborder: †Thalattosuchia
Family: †Teleosauridae
Genus: †Indosinosuchus
Martin et al., 2019[1]
Type species
†Indosinosuchus potamosiamensis
Martin et al., 2019
Species
  • †I. potamosiamensis Martin et al., 2019
  • †I. kalasinensis Johnson, Young & Brusatte, 2020
Holotype skull of I. kalasinensis

References
  1. Martin, Jeremy E.; Suteethorn, S.; Lauprasert, K. (February 2019). "A new freshwater teleosaurid from the Jurassic of northeastern Thailand" (PDF). Journal of Vertebrate Paleontology. 64 (2): 239–260. doi:10.1080/02724634.2018.1549059. S2CID 91988192.
  2. Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.
  3. Johnson, Michela M.; Young, Mark T.; Brusatte, Stephen L. (2020). "The phylogenetics of Teleosauroidea (Crocodylomorpha, Thalattosuchia) and implications for their ecology and evolution". PeerJ. 8: e9808. doi:10.7717/peerj.9808. ISSN 2167-8359. PMC 7548081. PMID 33083104.
  4. Paul, Gregory S. (2022). The Princeton Field Guide to Mesozoic Sea Reptiles. Princeton University Press. p. 192. ISBN 9780691193809.
  5. Racey and Goodall (2009). "Late Palaeozoic and Mesozoic Ecosystems in SE Asia". Geological Society. London. Special Publication 315 Pp 69-84.


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