Buscar
Mostrando ítems 11-20 de 328
Is Nematocharax (Actinopterygii, Characiformes) a monotypic fish genus?
(Canadian Science Publishing, Nrc Research Press, 2016-10-01)
The combination of DNA barcodes and geometric morphometrics is useful to discriminate taxonomically controversial species, providing more precise estimates of biodiversity. Therefore, our goal was to assess the genetic and ...
Insights on the history of the scorched mussel Brachidontes rodriguezii (Bivalvia: Mytilidae) in the Southwest Atlantic: a geometric morphometrics perspective
(Taylor & Francis, 2017-03)
Some authors support the idea that an important part of the Miocene marine mollusc fauna is still represented in the Argentinean Province. The fossil mollusc Brachidontes lepida (Philippi) is considered a subspecies of the ...
Geometric morphometrics of large South American camelids and their potential for the taxonomical identification in archaeological sites of the northern Argentina
(Taylor & Francis, 2019-09)
The large South American camelids, the llama (Lama glama) and the guanaco (Lama guanicoe), present a low level of morphological variation in the skeleton and a significant overlap in their body size at population scale. ...
Analysis of the ontogenetic variation in body and beak shape of the Illex argentinus inner shelf spawning groups by geometric morphometrics
(Cambridge University Press, 2010-05)
In this paper we analysed size and shape differences of body (mantle and fins) and inferior beak of the squid Illex argentinus from two Patagonian inner-shelf spawning groups. A new method was developed to reconstruct ...
Shape variation in presacral vertebrae of saltasaurine titanosaurs (Dinosauria, Sauropoda)
(Taylor & Francis, 2014-11)
Titanosaurs were small- to giant-sized sauropods, highly derived and highly pneumatic. Using morphometric analyses, we studied differences in shape of the presacral vertebral centra in some of these sauropods, especially ...