A new calappid species from the Ligure Piemontese Basin (NW Italy) and reappraisal of the fossil calappid specimens in the Museo “G. Maini”, Ovada
The Oligocene species ascribed to the Calappidae H. Milne Edwards, 1837, housed in the palaeontological collections of the Museum “G. Maini” of Ovada (Alessandria, Piemonte, NW Italy) from the Ligure Piemontese Basin, are herein revised in order to verify their systematic assignment. Two additional...
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Veröffentlicht in: | Boletín de la Sociedad Geológica Mexicana 2019-01, Vol.71 (1), p.219-227 |
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Zusammenfassung: | The Oligocene species ascribed to the Calappidae H. Milne Edwards, 1837, housed in the palaeontological collections of the Museum “G. Maini” of Ovada (Alessandria, Piemonte, NW Italy) from the Ligure Piemontese Basin, are herein revised in order to verify their systematic assignment. Two additional specimens are ascribed to Calappilia guttata n. sp., whereas one specimen previously ascribed to M. pustulosus is herein assigned to Calappilia sp. The revision allows us to provide an emended diagnosis and new description of Mursiopsis pustulosus Ristori, 1889. Finally the assignment of Stenodromia mainii (Allasinaz, 1987) and Calappilia vicetina Fabiani, 1910, is briefly discussed.
Las especies del Oligoceno, adscritas a los Calappidae H. Milne Edwards, 1837, depositadas en las colecciones paleontológicas del Museo“G. Maini” de Ovada (Alessandria, Piemonte, NO Italia), procedentes de la Cuenca Ligure Piemontese, son revisadas aquí, con el propósito de verificar su asignación sistemática. Dos especímenes son adscritos a Calappilia guttata n. sp., en tanto que un espécimen adscrito a M. pustulosus, es aquí asignado a Calappilia sp. Esta revisión nos permite ofrecer una diagnosis corregida y una nueva descripción de Mursiopsis pustulosus Ristori, 1889. Finalmente, la asignación de Stenodromia mainii (Allasinaz, 1987) y Calappilia vicetina Fabiani, 1910, es brevemente discutida. |
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ISSN: | 1405-3322 |
DOI: | 10.18268/BSGM2019v71n1a12 |