REAL

Occurrence of the Toarcian genus Urkutites GÉCZY (Ammonitina, Hildoceratinae) in the Apennines (Italy)

Sassaroli, Stefano and Venturi, Federico (2015) Occurrence of the Toarcian genus Urkutites GÉCZY (Ammonitina, Hildoceratinae) in the Apennines (Italy). Hantkeniana, 10. pp. 41-54. ISSN 1219-3933

[img]
Preview
Text
04_Sassaroli.pdf

Download (1MB) | Preview

Abstract

Ammonite specimens of the rare Toarcian genus Urkutites GÉCZY, 1967 were found in some outcrops of the Apennines (Italy). The genus was originally designated by GÉCZY on the basis of two specimens discovered in the Bakony Mts (Hungary), but some British authors believed it to be a synonym of Hildoceras. The discovery of specimens of the type species (Urkutites boeckhi GÉCZY) in the Apennines and of the new taxon Urkutites italicus n. sp. (described herein) allows confirming Urkutites as a valid taxon. The genus ranges between the upper Serpentinus Zone (Undicosta Zone of the Apennines local zonation) and the lower Bifrons Zone when Mediterranean Tethys Hildoceratinae flourished. Some palaeobiogeographical and taxonomical implications are briefly discussed. A faunal exchange between the Trans- danubian Range (Hungary) and the Apennines occurred, and the origination of Urkutites seems to confirm a remarkable diversity of Hildoceratinae after the record of the TOAE (Toarcian Oceanic Anoxic Event).

Item Type: Article
Subjects: Q Science / természettudomány > QH Natural history / természetrajz > QH526 Paleontology / őslénytan
SWORD Depositor: MTMT SWORD
Depositing User: Zsolt Baráth
Date Deposited: 06 Jan 2023 10:54
Last Modified: 06 Jan 2023 11:21
URI: http://real.mtak.hu/id/eprint/156151

Actions (login required)

Edit Item Edit Item