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Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Cladus: Sarcopterygii
Cladus: Rhipidistia
Cladus: Tetrapodomorpha
Cladus: Eotetrapodiformes
Cladus: Elpistostegalia
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Classis: Reptilia
Cladus: Eureptilia
Cladus: Romeriida
Subclassis: Diapsida
Cladus: Sauria
Infraclassis: Archosauromorpha
Cladus: Crurotarsi
Divisio: Archosauria
Subsectio: Pseudosuchia
Cladus: Suchia
Cladus: Paracrocodylomorpha
Cladus: Loricata
Superordo: Crocodylomorpha
Ordo: Crocodilia
Cladus: Mesoeucrocodylia
Cladus: Neosuchia
Subordo: Eusuchia

Familia: Crocodylidae
Subfamilia: Crocodylinae
Genus: Osteolaemus
Species (1): O. tetraspis

Osteolaemus Cope, 1861: 549

Type species: Osteolaemus tetraspis Cope, 1861, by monotypy.

Halcrosia Gray, 1862: 273

Type species: Crocodilus frontatus Murray, 1862, by monotypy.
Primary references

Cope, E.D. [1860] 1861. List of the recent species of Emydosaurian Reptiles in the Museum of the Academy of Natural Sciences. Proceedings of the Academy of Natural Sciences of Philadelphia 12: 549–550. BHL Reference page.
Gray, J.E. 1862. A synopsis of the species of crocodiles. Annals and Magazine of Natural History Series 3, 10: 265–274. BHL

Additional references

Eaton, M.J., Martin, A., Thorbjarnarson, J. & Amato, G. 2008. Species-level diversification of African dwarf crocodiles (Genus Osteolaemus): a geographic and phylogenetic perspective. Molecular Phylogenetics and Evolution 50(3): 496–506. DOI: 10.1016/j.ympev.2008.11.009


Uetz, P. & Hallermann, J. 2022. Osteolaemus . The Reptile Database. Accessed on 22 June 2018.

Vernacular names
Deutsch: Stumpfkrokodil
English: Dwarf Crocodile
français: Crocodile Nain
日本語: コビトワニ属
Nederlands: Breedvoorhoofdkrokodil
português: Crocodilo-anão

Osteolaemus is a genus of crocodiles.

The following species are recognized as being valid.[1]

Osteolaemus osborni Schmidt, 1919 – Osborn's dwarf crocodile
Osteolaemus tetraspis Cope, 1861 – dwarf crocodile, African dwarf crocodile, broad-snouted crocodile, bony crocodile

Nota bene: A binomial authority in parentheses indicates that the species was originally described in a genus other than Osteolaemus.

"Osteolaemus ". The Reptile Database.

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