Fred Ruhe
Well-known member
Nadia Haidr & Carolina Acosta Hospitaleche, 2017
A new penguin cranium from Antarctica and its implications for body size diversity during the Eocene.
Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen 286(2):. 229-233
DOI: https://doi.org/10.1127/njgpa/2017/0698
http://www.ingentaconnect.com/content/schweiz/njbgeol/2017/00000286/00000002/art00008
Abstract:
Although penguins have a very abundant fossil record in Antarctica, very few cranial elements have been found so far, and in all the cases the specimens are incomplete. We describe a new cranium of a medium-sized penguin from the late Eocene Submeseta Formation in Marambio/ Seymour Island, Antarctica. Its morphology allows us to establish a common cranial pattern for all known Eocene taxa (including South American, Antarctic and probably Oceanian species), with very different proportions between cranium and post-cranium from those of modern penguins. These Paleogene fossils exhibit a small neurocrania, extremely elongated bills, large occipital condyles, and strong cranio-mandibular articulations.
Keywords: 3D SCAN; ANATOMY; EOCENE; PALEOBIODIVERSITY; SEYMOUR ISLAND; SPHENISCIFORMES
Enjoy,
Fred
A new penguin cranium from Antarctica and its implications for body size diversity during the Eocene.
Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen 286(2):. 229-233
DOI: https://doi.org/10.1127/njgpa/2017/0698
http://www.ingentaconnect.com/content/schweiz/njbgeol/2017/00000286/00000002/art00008
Abstract:
Although penguins have a very abundant fossil record in Antarctica, very few cranial elements have been found so far, and in all the cases the specimens are incomplete. We describe a new cranium of a medium-sized penguin from the late Eocene Submeseta Formation in Marambio/ Seymour Island, Antarctica. Its morphology allows us to establish a common cranial pattern for all known Eocene taxa (including South American, Antarctic and probably Oceanian species), with very different proportions between cranium and post-cranium from those of modern penguins. These Paleogene fossils exhibit a small neurocrania, extremely elongated bills, large occipital condyles, and strong cranio-mandibular articulations.
Keywords: 3D SCAN; ANATOMY; EOCENE; PALEOBIODIVERSITY; SEYMOUR ISLAND; SPHENISCIFORMES
Enjoy,
Fred