Messanae Universitas Studiorum

Adaptive and evolutionary characters inferred from an endocranial cast of nesolutra trinacriae Burgio & Fiore, an endemic otter of the sicilian middle-upper pleistocene

Angelelli, F. Adaptive and evolutionary characters inferred from an endocranial cast of nesolutra trinacriae Burgio & Fiore, an endemic otter of the sicilian middle-upper pleistocene. Accademia Peloritana dei Pericolanti Classe FF.MM.NN., 67. pp. 279-295.

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Abstract

The paper describes the results of a morphological analysis conducted on the brain obtained from a skull of Nesolutra trinacriae Burgio & Fiore, 1988. The skull, which was discovered at Poggio Schinaldo, Cinisi (province of Palermo, Sicily), was associated with a vertebrate fauna ascribed to the Midd1eUpper Pleistocene. The endocranial characters relating to evolution of the sensory area projection in the Sicilian species were compared with those of numerous fossil and living lutrines. The comparison showed that the Sicilian species had a significant expansion of its coronai gyrus, similar to the one of Lutra and thus mainly due to a remarkabie sensitivity of its faciai vibrissae. The expansion of the coronal gyrus in N. trinacriae testifies a specific adaptation to aquatic environments and to swimming, very close to the one of N. ichnusae Malatesta.

Item Type: Article
Subjects: M.U.S. - Miscellanea > Atti Accademia Peloritana > Classe di Scienze Fisiche, Matematiche e Naturali > 1989 > Supplemento 1 parte 2
M.U.S. - Miscellanea > Atti Accademia Peloritana > Classe di Scienze Medico-Biologiche > 1989 > Supplemento 1 parte 2
M.U.S. - Miscellanea > Atti Accademia Peloritana > Classe di Scienze Giuridiche, Economiche e Politiche > 1989 > Supplemento 1 parte 2
M.U.S. - Miscellanea > Atti Accademia Peloritana > Classe di Lettere, Filosofia e belle Arti > 1989 > Supplemento 1 parte 2
Depositing User: Dr M P
Date Deposited: 09 Oct 2012 08:24
Last Modified: 09 Oct 2012 08:24
URI: http://cab.unime.it/mus/id/eprint/1118

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