Grus (genus)

Grus
Sarus Crane, Grus antigone
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Gruiformes
Suborder: Grui
Family: Gruidae
Genus: Grus
Brisson, 1760
Species

10, see text

Grus is a genus of large birds in the crane family.

Species

The Cuban Flightless Crane, Grus cubensis, became extinct in the Quaternary, but probably before human settlement of Cuba.

Fossil record

The fossil record of the genus stretches back some 12 million years or so. A considerable number of prehistoric species are known, with the oldest, Grus miocaenicus (Middle Miocene of Credinţa, Romania) perhaps not a crane but a junior synonym of the swimming-flamingo Palaelodus ambiguus; ("Grus" problematica certainly is). The Late Pleistocene Mediterranean Grus primigenia was hunted by stone age humans.

Several other fossil gruiforms are now considered not to belong here. "Grus" prentici is now in Paragrus, "Grus" princeps, "Grus" excelsa and "Grus" hordwellianus are placed in Palaeogrus, and "Grus" excelsa in Balearica. "Grus" marshi belongs into Aletornis

More uncertain is the position of Probalearica (variously considered Late Oligocene to Middle Pliocene but probably Late Miocene) from Golboçica (Moldavia) and maybe elsewhere. It is usually regaded a nomen dubium but might belong into Grus. "Grus" conferta (Late Miocene/Early Pliocene of Contra Costa County, USA) is apparently too different from the modern genus to be placed herein, but its affiliations are not well resolved.

References