Published January 5, 2021
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Taxonomic treatment
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Pseudodiloma Cossmann 1888
Creators
Description
Genus Pseudodiloma Cossmann, 1888 †
Type species. Trochus mirabilis Deshayes, 1863, OD (Cossmann 1888: 69), Eocene, France.
Diagnosis. Small, sigaretiform shells with convex teleoconch whorls with periphery in abapical third of whorls. Umbilicus wide, partly hidden by inner lip, with broad umbilical atrium. Sculpture of tiny beads arranged in Fibonacci sequences (see Cossmann 1918 for a detailed description).
Remarks. A monospecific genus, which is well defined by its peculiar sculpture; restricted to the middle Eocene of the NE Atlantic.
Notes
Published as part of Harzhauser, Mathias, 2021, The Cainozoic to present-day record of Circum-Mediterranean, NE Atlantic and North Sea Cantharidinae and Trochinae (Trochoidea, Gastropoda) - a synopsis, pp. 1-81 in Zootaxa 4902 (1) on page 52, DOI: 10.11646/zootaxa.4902.1.1, http://zenodo.org/record/4419088
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Linked records
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Additional details
Identifiers
Biodiversity
- Family
- Trochidae
- Genus
- Pseudodiloma
- Kingdom
- Animalia
- Order
- Archaeogastropoda
- Phylum
- Mollusca
- Scientific name authorship
- Cossmann
- Taxon rank
- genus
- Taxonomic concept label
- Pseudodiloma Cossmann, 1888 sec. Harzhauser, 2021
References
- Cossmann, M. (1888) Catalogue illustre des coquilles fossiles de 1 ' Eocene des environs de Paris. Annales de la Societe Royale Malacologique de Belgique, 23, 3 - 324. [https: // www. biodiversitylibrary. org / item / 28336 # page / 33 / mode / 1 up]
- Deshayes, G. P. (1863) Description des animaux sans vertebres decouverts dans le bassin de Paris pour servir de supplement a la Description des coquilles fossiles des environs de Paris comprenant une revue generale de toutes les especes actuellement connues. Tome 2. Mollusques acephales monomyaires et Brachiopodes. Mollusques cephales. J. - B. Bailliere et fils, Paris, pp. 641 - 920. https: // www. biodiversitylibrary. org / item / 110230 # page / 9 / mode / 1 up
- Cossmann, M. (1918) Essais de paleoconchologie comparee. Onzieme livraison. published by the author, Paris, 388 pp. [https: // www. biodiversitylibrary. org / item / 111979]