MACNBR   00242
MUSEO ARGENTINO DE CIENCIAS NATURALES "BERNARDINO RIVADAVIA"
Unidad Ejecutora - UE
artículos
Título:
A new late Cenozoic species of Abertella (Echinoidea: Clypeasteroida) from Patagonia
Autor/es:
KROH, ANDREAS; MOOI, RICH; DEL RIO, CLAUDIA JULIA; NEUMANN, CHRISTIAN
Revista:
ZOOTAXA
Editorial:
MAGNOLIA PRESS
Referencias:
Lugar: Auckland; Año: 2013 vol. 3608 p. 369 - 369
ISSN:
1175-5326
Resumen:
A new species of abertellid sand dollar, Abertella miskellyi n. sp., is described from the Miocene Camarones Formationof Patagonia, southern Argentina. The new taxon corroborates the existence of the genus in South America, given thatAbertella is most common in the southeastern USA and the eastern coast of Central America. It is characterized by aunique basicoronal circle, in which the interambulacral basicoronal plates are very heterogeneous in size (small ininterambulacrum 5, largest in interambulacra 2 and 3). Additionally, it features disjunct oral interambulacra involving twoambulacral plates in some of the interambulacra rather than one, thus being the most disjunct of all known species ofAbertella. A key to the species of the genus is provided.