INVESTIGADORES
COVIAGA corina Anabel
artículos
Título:
On two species of Riocypris (Crustacea, Ostracoda) from Northern Patagonia and their relation to Eucypris fontana; implications in paleo-environemntal reconstructions
Autor/es:
COVIAGA, CORINA ANABEL; PÉREZ, ALEJANDRA PATRICIA; RAMOS, LORENA; ALVEAR, PABLO; CUSMINSKY, GABRIELA
Revista:
CANADIAN JOURNAL OF ZOOLOGY
Editorial:
NATL RESEARCH COUNCIL CANADA-N R C RESEARCH PRESS
Referencias:
Lugar: Otawa; Año: 2018 vol. 96 p. 801 - 817
ISSN:
0008-4301
Resumen:
Two species of ostracods new to Patagonia, Argentina are described. One of them, Riocypris whatleyi sp. nov., is described for the first time, and the second, Riocypris sarsi (Daday 1902), is reallocated from genus Eucypris to genus Riocypris. Inter and intraspecific variations in shape, size and sexual dimorphism were evaluated based on geometric morphometric analysis. Moreover, morphological and morphometric comparative analyses were applied to re-examine living and quaternary specimens recovered from previous studies. Based on these results, a generic reassignment for the patagonian Eucypris fontana (Jurine, 1820) into the genus Riocypris is proposed. Contributing to the knowledge on the systematic and auto-ecology of this enigmatic species, widely distributed in Patagonia and frequently used in paleolimnological reconstructions, generates science-based evidence for their use as indicator species. Additionally, our results emphasize the usefulness of studying the living representatives (i.e. with valves and appendages) for elucidating the taxonomic status of the individual specimens, especially those present in paleontological records and used as bioproxies in paleolimnological studies.