Aalenian Gryphaeinae from the Pieniny Klippen Belt of Poland
Halina Pugaczewska
Acta Palaeontologica Polonica 16 (4), 1971: 389-399
Gryphaeinae, found in Middle Aalenian deposits from the Pieniny Klippen Belt, are assigned to 4 species of the genus Gryphaea Lamarck, 1801. The studies included morphology of shells, their variability and ontogeny and progressive variability of umbo of left valves.
This is an open-access article distributed under the terms of the Creative Commons Attribution License (for details please see creativecommons.org), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Full text (710.1 kB)