Leidyosuchus

Taxobox
name = "Leidyosuchus"


image_caption =
fossil_range = Late Cretaceous
regnum = Animalia
phylum = Chordata
classis = Sauropsida
ordo = Crocodylia
familia = Alligatoridae
genus = "Leidyosuchus"
subdivision_ranks=Species
subdivision=
*"L. candensis" Lambe, 1907 (type)

"Leidyosuchus" (meaning "Leidy's crocodile") is an extinct genus of alligatorid from the Late Cretaceous of Alberta. It was named in 1907 by Lawrence Lambe, and the type species is "L. canadensis".cite journal |last=Lambe |first=Lawrence M. |authorlink=Lawrence Lambe |year=1907 |title=On a new crocodilian genus and species from the Judith River Formation of Alberta |journal=Transactions of the Royal Society of Canada, series 3 |volume=1 |issue=4 |pages=219–235] It is known from a number of specimens from the middle Campanian age Dinosaur Park Formation. It was a medium-sized alligatorid, with a maximum skull length greater than 40 centimeters (16 in).cite book |last=Wu |first=Xiao-Chun |editors=Currie, Phillip J., and Koppelhus, Eva |title=Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed |chapter=Crocodylians |year=2005 |publisher=Indiana University Press |location=Bloomington |pages=277-291 |isbn=0-253-34595-2 ]

A number of species had been assigned to this genus over the years, including: "L. acutidentatus" (Sternberg, 1932), from the Paleocene of Saskatchewan; "L. formidabilis" (Erickson, 1976), from the Paleocene of North Dakota and Wyoming; "L. gilmorei" (Mook, 1942), from the Campanian of Alberta; "L. multidentatus" (Mook, 1930); "L. riggsi" (Schmidt, 1938); "L. sternbergi" (Gilmore, 1910), from the Maastrichtian (Late Cretaceous) of Colorado, Montana, North Dakota, South Dakota, and Wyoming; and "L. wilsoni" (Mook, 1959), from the Eocene of Wyoming. However, in 1997 Chris Brochu reevaluted the genus and reassigned most of the species, transferring "L. acutidentatus", "L. formidabilis", "L. sternbergi", and "L. wilsoni" to the new genus "Borealosuchus", and "L. multidentatus" to the new genus "Listrognathosuchus", proposing "L. gilmorei" as a synonym of "L. canadensis", and finding "L. riggsi" to be too fragmentary to be determinable.cite journal |last=Brochu |first=C.A. |year=1997 |title=A review of "Leidyosuchus" (Crocodyliformes, Eusuchia) from the Cretaceous through Eocene of North America |journal=Journal of Vertebrate Paleontology |volume=17 |issue=4 |pages=679–697]

References