''Alligatorium'' is an extinct

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

of atoposaurid

crocodylomorph Crocodylomorpha is a group of pseudosuchian archosaurs that includes the crocodilians and their extinct relatives. They were the only members of Pseudosuchia to survive the end-Triassic extinction. During Mesozoic and early Cenozoic times, cro ...

from Late Jurassic marine deposits in France.

Systematics

The

type species In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specimen ...

is ''A. meyeri'', named in 1871 from a single specimen from Cerin, eastern France. Two more nominal species, ''A. franconicum'', named in 1906, and ''A paintenense'', named in 1961, are based on now-missing specimens from Bavaria, southern Germany, and were synonymized into a single species, for which ''A. franconicum'' has priority. A 2016 review of Atoposauridae removed ''A. franconicum'' from ''Alligatorium'' and placed at Neosuchia ''incertae sedis''. ''Alligatorium depereti'', described in 1915, was reassigned to its own genus, ''

Montsecosuchus ''Montsecosuchus'' is an extinct genus of atoposaurid crocodylomorphs. It is the replacement generic name for ''Alligatorium depereti'', which was described in 1915 from the Montsec Lithographic Limestone quarry of Spain. Fossils found from this ...

'', in 1988.

References

Late Jurassic crocodylomorphs of Europe Neosuchians Fossil taxa described in 1871 Prehistoric pseudosuchian genera {{paleo-archosaur-stub