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In defence of invertebrate fossil taxonomy

Fedorowski Jerzy

Acta Geologica Polonica

2021

Vol. 71, no. 3

249--258

Starting from a subjective viewpoint on the decreasing interest in invertebrate fossil taxonomy, this essay discusses its importance in palaeobiological studies exemplified with cases from the palaeobiogeography and palaeoecology of rugose corals, and aims at provoking a discussion on the topic. The possible causes of this negative declining trend include inherent problems of palaeontological taxonomy, and changing systems in science and higher education.

Serpulid opercula (Annelida: Polychaeta) from the Upper Eocene of Possagno, NE Italy: taxonomy, taphonomy and palaeobiological significance

Gatto R., Radwańska U.

Acta Geologica Polonica

2000

Vol. 50, no. 3

343-354

A relatively rich assemblage of serpulid opercula (Polychaeta) is recognized, for the first time in Italy, in the Upper Eocene strata of the Possagno Marl exposed in the southern Alps (Province of Treviso, NE Italy). The studied material comprises for species referable to the genus Pyrgopolon De MONTFORT, 1808. Of these, the new species Pyrgopolon (Pyrgopolon) tubula sp. n. is also present in the lower and middle Eocene deposits of north-western Europe, whereas P. (P.) trochoides (NYST, 1845) ranges from the middle Eocene to early Oligocene. The second new species, Pyrgopolon cunialense sp.n., is tentatively ascribed to the subgenus Turbinia MICHELIN, 1845. A common or even a mass, occurrence of Pyrgopolon opercula in some Eocene/Oligocene sequences of western Europe is discussed. It is suggested that such an "opercular bloom" may have resulted from ether taphonomic (selective transport and fossilization) or biologic (mass-shedding of opercula) factors, or a combination of both