Temporal range: Early-Late Miocene (Colhuehuapian-Montehermosan) ~20–3 Ma
PreꞒ
Ꞓ
O
S
D
C
P
T
J
K
Pg
N
Scientific classification
Domain:
Eukaryota
Kingdom:
Animalia
Phylum:
Chordata
Class:
Aves
Infraclass:
Palaeognathae
Order:
Rheiformes
Family:
Rheidae
Genus:
†Opisthodactylus Ameghino 1891
Species
† O. patagonicusAmeghino 1891 (type)
† O. horaciopereziAgnolin & Chafrat 2015
† O. kirchneriNoriega et al. 2017
Opisthodactylus is an extinct genus of rhea from the Early to Middle Miocene Santa Cruz and Chichinales Formations and the Late Miocene (Montehermosan) Andalhuala Formation of Argentina. Three species are described: the type species, O. patagonicus, O. kirchneri and O. horacioperezi. The species O. kirchneri was described in 2017 by Noriega et al.[1] Fossils of O. horacioperezi were found together with fossils of Patagorhacos terrificus.[2]
^Opisthodactylus at Fossilworks.org
^Federico L. Agnolin and Pablo Chafrat (2015). "New fossil bird remains from the Chichinales Formation (Early Miocene) of northern Patagonia, Argentina". Annales de Paléontologie. 101 (2): 87–94. doi:10.1016/j.annpal.2015.02.001.
Opisthodactylus is an extinct genus of rhea from the Early to Middle Miocene Santa Cruz and Chichinales Formations and the Late Miocene (Montehermosan)...
(Late Paleocene) – possibly a member of Casuariiformes instead. Genus †Opisthodactylus Ameghino 1895 (Miocene) – rheid? Family Rheidae (Bonaparte 1849) Bonaparte...
Eutelornis patagonicus, Anisolornis excavatus, Protibis cnemialis, Opisthodactylus patagonicus, Liptornis hesternus, and many mammals by A. M. Albino...
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