TOUCASIELLA GEN. NOV., A NEW HIMALAYITIDAE (AMMONITINA) OF LATE TITHONIAN - ORIGIN OF DURANGITES

Authors
ENAY R BOUGHDIRI M LEHEGARAT G
Citation
R. Enay et al., TOUCASIELLA GEN. NOV., A NEW HIMALAYITIDAE (AMMONITINA) OF LATE TITHONIAN - ORIGIN OF DURANGITES, Comptes rendus de l'Academie des sciences. Serie 2. Sciences de la terre et des planetes, 327(7), 1998, pp. 471-477
Citations number
13
Categorie Soggetti
Geosciences, Interdisciplinary
Journal title
Comptes rendus de l'Academie des sciences. Serie 2. Sciences de la terre et des planetes → ACNP
ISSN journal
12518050
Volume
327
Issue
7
Year of publication
1998
Pages
471 - 477
Database
ISI
SICI code
1251-8050(1998)327:7<471:TGNANH>2.0.ZU;2-T
Abstract
A new ammonite genus of Upper Tithonian (Microcanthum and Chitinoidell a Zones) Himalayitidae is described. Toucasiella includes microconchs (m) and macroconchs (M). Its stratigraphic position (A2 and A3 in the calpionellid subzones), general aspect and ontogenetic characters indi cate its place as ancestor of Durangites and Protacanthodiscus. ((C) A cademie des sciences / Elsevier, Paris.).