Original paper

Myriacanthid holocephalans (Chondrichthyes) from the British Late Triassic

Duffin, Christopher J.

Abstract

New material of Agkistracanthus mitgelensis is described from the Cotham Member of the Lilstock Formation (Penarth Group, “Rhaetic”) of Saint Audries Bay, and the Late Triassic fissure filling at Holwell. This is the first record of the species outside Switzerland. A tooth plate of Myriacanthus paradoxus is described from the Westbury Formation (Penarth Group) of Aust Cliff, extending the known range of the species into the Late Triassic.

Kurzfassung

Anhand von Zahnplatten aus dem Rhät von Saint Audries Bay und Holwell wird Agkistracanthus mitgelensis erstmals außerhalb der Schweiz nachgewiesen. Eine Zahnplatte von Myriacanthus paradoxus vom Aust Cliff weitet den Nachweis dieser Art nach unten in die Obere Trias aus.

Keywords

Agkistracanthus mitgelensis;Myriacanthus paradoxus;Triassic;Rhaetian