REEVALUATION OF PROCRASPEDITES SPATH, 1930 (AMMONITINA) FROM THE UPPER KIMMERIDGIAN OF MEXICO

Authors
OLORIZ F VILLASENOR B GONZALEZARREOLA C
Citation
F. Oloriz et al., REEVALUATION OF PROCRASPEDITES SPATH, 1930 (AMMONITINA) FROM THE UPPER KIMMERIDGIAN OF MEXICO, Bulletin de la Societe geologique de France, 169(2), 1998, pp. 243-254
Citations number
38
Categorie Soggetti
Geosciences, Interdisciplinary
Journal title
Bulletin de la Societe geologique de France → ACNP
ISSN journal
00379409
Volume
169
Issue
2
Year of publication
1998
Pages
243 - 254
Database
ISI
SICI code
0037-9409(1998)169:2<243:ROPS1(>2.0.ZU;2-#
Abstract
Procraspedites from the Mexican Altiplano, studied with precise strati graphic control, are coeval with the horizons rich in Glockiceras (Cor yceras) carinatum [Del Castillo and Aguilera, 1895]. The interval with Procraspedites is dated as Eudoxus Chron (p.p.) of the Submediterrane an late Kimmeridgian. The presence of parabolic structures on the inne r whorls, followed by double furcations in Procraspedites, indicates A taxioceratinae. The type species Procraspedites praecursor [Burckhardt . 1906] is interpreted to be the only valid species of this genus in t he Americas.