WoRMS source details
Kroh, A.; Mooi, R.; Del Río, C.; Neumann, C. (2013). A new late Cenozoic species of Abertella (Echinoidea: Clypeasteroida) from Patagonia. Zootaxa. 3608(5), 369-378.
165515
10.11646/zootaxa.3608.5.5 [view]
Kroh, A.; Mooi, R.; Del Río, C.; Neumann, C.
2013
A new late Cenozoic species of <i>Abertella</i> (Echinoidea: Clypeasteroida) from Patagonia
Zootaxa
3608(5), 369-378
Publication
A new species of abertellid sand dollar, Abertella miskellyi n. sp., is described from the Miocene Camarones Formation
of Patagonia, southern Argentina. The new taxon corroborates the existence of the genus in South America, given that
Abertella is most common in the southeastern USA and the eastern coast of Central America. It is characterized by a
unique basicoronal circle, in which the interambulacral basicoronal plates are very heterogeneous in size (small in
interambulacrum 5, largest in interambulacra 2 and 3). Additionally, it features disjunct oral interambulacra involving two
ambulacral plates in some of the interambulacra rather than one, thus being the most disjunct of all known species of
Abertella. A key to the species of the genus is provided.
Key words: Clypeasteroida, Abertellidae, sand dollars, new taxon, Argentina, Patagonia, Camarones Formation, Miocene,
identification key
Date
action
by
Abertella cazonensis † accepted as Abertella cazonesensis (Kew in Dickerson & Kew, 1917) † (basis of record)
Abertella miskellyi Kroh, Mooi, del Rió & Neumann, 2013 † (original description)
Abertella miskellyi Kroh, Mooi, del Rió & Neumann, 2013 † (original description)
Diagnosis
Abertella with heterogeneous interambulacral basicoronal plates (small in interambulacrum 5, largest in ... [details]
Type locality
P. Camarones, Chubut Province, southern Argentina (Camarones Formation, Miocene). [details]
Type material
Museum für Naturkunde (Berlin, Germany) Holotype: MB E.7463; Paratype MB E.7462 [details]
