
Genus Pinna Linné, 1758 Remarks.— Pinna shows strong morphological similarity with Atrina Gray, 1842. The principal distinguishing character is the interior nacre, which in Pinna is divided medially into two lobes, and the presence of a median carina in this genus.
Published as part of Seeling, Jens & Bengtson, Peter, 2003, The bivalve Pinna cretacea (Schlotheim, 1813) from the Cretaceous of Brazil, pp. 475-480 in Acta Palaeontologica Polonica 48 (3) on page 477, DOI: 10.5281/zenodo.13388305
Pinnidae, Mollusca, Animalia, Pinna, Biodiversity, Ostreida, Taxonomy, Bivalvia
Pinnidae, Mollusca, Animalia, Pinna, Biodiversity, Ostreida, Taxonomy, Bivalvia
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