Copepteryx is an extinct genus of flightless bird of the family Plotopteridae, endemic to Japan during the Oligocene living from 28.4 to 23 mya, meaning it existed for approximately 5.4 million years.[1]
^"Copepteryx". paleodb.org. Paleobiology Database. Retrieved 17 February 2012.
Copepteryx is an extinct genus of flightless bird of the family Plotopteridae, endemic to Japan during the Oligocene living from 28.4 to 23 mya, meaning...
by Ota and Hasegawa Yoshikazu. In 1986, while describing the new genus Copepteryx, Hasegawa and Storrs L. Olson tentatively referred that coracoid to the...
plotopterid, smaller than the large genera of Japanese tonsalin plotopterids Copepteryx and Hokkaidornis, but larger than the derived Plotopterum. Empeirodytes...
only being dwarfed by the giant Japanese plotopterids Hokkaidornis and Copepteryx. The scapula had a wider caudal portion with a more curved dorsal border...
3 ft) and length of 1.7 metres (5.6 ft), roughly the size of its relative Copepteryx hexeris. The anterior ends of the furcula are more reminiscent of those...
(57 lb). The largest known plotopterid, penguin-like flightless bird was Copepteryx titan that is known from 22 cm (8.7 in) long femur, almost twice as long...
Plotopterum than with those of the larger Tonsalinae plotopterids like Copepteryx and Tonsala. It was although mostly differenced from Plotopterum by several...
limited to coastal waters, while the larger Tonsalinae such as Tonsala and Copepteryx had a more pelagic lifestyle. It has been suggested that the diversification...
stoutness between Tonsala and its larger Japanese relatives Hokkaidornis and Copepteryx. The complete tibiotarsus of the holotype, unique among all plotopterids...
Comparison could however be made with the then undescribed remains of Copepteryx from Japan to verify the identity of the bone as a fossil of plotopterid...
Miocene MN 9 Moldova An Aves Incertae Sedis, it is not an Anatidae. Copepteryx hexeris Gen. nov. et Sp. nov. Valid Storrs L. Olson Yoshikazu Hasegawa...
distal wing, a patella and a pectoral girdle. In 1996, while describing Copepteryx, Olson and Hasegawa tentatively assigned a 16.5 cm coracoid from the late...
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