INVESTIGADORES
ACOSTA HOSPITALECHE Carolina Ileana Alicia
artículos
Título:
Additional Pelagornithidae remains from Seymour Island, Antarctica
Autor/es:
ACOSTA HOSPITALECHE, CAROLINA; REGUERO, MARCELO
Revista:
JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
Editorial:
PERGAMON-ELSEVIER SCIENCE LTD
Referencias:
Año: 2020 vol. 99
ISSN:
0895-9811
Resumen:
Two incomplete mandibles are assigned to Pelagornithidae given the presence of a well marked neurovascular furrow and the unique bony projections, or ?pseudo-teeth?, along the crista tomialis. Specimens IAA-Pv 175 from Ypresian levels of La Meseta Alloformation (Cucullaea I Allomember), and IAA-Pv 823 from Bartonian beds of the Submeseta Alloformation, in Seymour Island (Antarctic Peninsula, West Antarctica) corresponds to the morpho-type 1, previously proposed for Antarctic pseudo-tooth birds. The intermediate condition of the pseudo-teeth of these specimens reinforces the idea that diet changed from piscivory to molluscivory along the evolutive history of the group.
