Contribution
A fin spine of Recurvacanthus (Myriacanthidae, Holocephali) from the Posidonienschiefer (Early Jurassic) of SW Germany
J. Duffin, Christopher; Joiko, Lars
Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen Band 296 Heft 3 (2020), p. 317 - 326
32 références bibliographiques
publié: Jun 22, 2020
manuscrit accepté: Mar 30, 2020
manuscrit reçu: Feb 9, 2020
ArtNo. ESP155029603004, Prix: 29.00 €
Abstract
The fin spine of a myriacanthid holocephalian from the Lower Toarcian (Early Jurassic) Posidonienschiefer Formation of Ohmden, near Holzmaden, is described and, following comparison with other Mesozoic holocephalian dorsal fin spines, identified as Recurvacanthus uniserialis Duffin, 1981. This is the first record of Recurvacanthus from the German Posidonienschiefer, and only the second specimen known. In addition to extending both the stratigraphical and geographical ranges of the genus, the specimen represents an addition to the known chondrichthyan diversity of the Posidonienschiefer.
Mots-clefs
Holzmaden • Posidonienschiefer • Toarcian • Early Jurassic • Myriacanthidae • Chimaeriformes • fossil species