Girtyoceras Wedekind 1918
Year: 2025
Type: other
Abstract: Genus Girtyoceras Wedekind, 1918 Type species Adelphoceras meslerianum Girty, 1909; by original designation. Remarks The European and North African species of the genus Girtyoceras were compared by Korn & Ebbighausen (2008), who grouped them based on conch morphology and ornamentation. They noted that 16 species had been described from European material, but only a few of these species have been characterised in detail, particularly with regard to the ontogenetic development of their conch geometry and ornamentation. However, this ontogenetic approach is essential for accurately defining species within the genus, as distinguishing between species often requires comparing specimens of the same size or ontogenetic stage. Without ontogenetic series, it is difficult to recognise the subtle variations in conch shape and ornamentation that differentiate species of Girtyoceras.
Authors: Korn, Dieter, Ebbighausen, Volker
Institution: Museum für Naturkunde
Language: English
Subfield: Paleontology
Field: Earth and Planetary Sciences
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W6950033179
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