Resumen de Revisione della malacofauna pliocenica di Rio Albonello. IV - Due taxa dimenticati di Giuseppe Seguenza.
- English
The Sicilian paleontologist Giuseppe Seguenza (1833-1889) built-up a rich collection of fossils in which heplaced most of the type material of the taxa he described. After his premature death, this collection wasincreased by his son Luigi until 1908, when the big earthquake of Messina killed him and destroyed greatpart of the collection. Giuliano Ruggieri, in occasion of the Centenary of Giuseppe Seguenza�s death, invited the paleontologists to restore a neo-/topo-type archive. This paper deals with two taxa introduced by Giuseppe Seguenza but never found again after their descriprion. Some fossil species found in the rich Pliocenic outcrop of Rio Albonello (Ravenna) have been recognized to be co-specific with Chrysallida obliquisculpta and Limea hoernesi, two taxa introduced by Seguenza. C. obliquisculpta has been obtained from truly bathyal paleocommunities, characterized by the presence of Bathyspinula excisa and Austrotindaria pusio salicensis, or upper bathyal ones, characterized by the presence of Korobkovia oblonga and Jupiteria concava; Limea hoernesi instead, has been recovered from shallower circalittoral deposits.
- italiano
Esemplari provenienti dalle ricche malacofaune del Pliocene del Rio Albonello (Ravenna) risultano appartenere a Chrysallida obliquisculpta, Limea hoernesi, due taxa descritti da Giuseppe Seguenza e mai più segnalati. Chrysallida obliquisculpta è associata alla paleocomunità batiale a Bathyspinula excisa e Austrotindaria pusio salicensis ed a quella epibatiale a Korobkovia oblonga e Jupiteria concava, mentre Limea hoernesi è legata ad ambienti di piattaforma esterna (circalitorali).
