The Ammonoidea of the Upper Chalk. Part 2

ABSTRACT

A total of 40 species, assigned to 17 genera, belonging to the Suborder Ancyloceratina are described. One species is new. Sixteen are from the Upper Turonian, nine from the Lower Campanian, and 15 from the Upper Campanian. Eight types of aptychi are described.

RESUMÉ

Au total 40 espèces, attribuées à 17 genres, appartenant au sous-ordre Ancyloceratina sont décrites. Une espèce est nouvelle. Seize espèces proviennent du Turonien supérieur, neuf du Campanien inférieur et 15 du Campanien supérieur. Huit type d’aptychi sont décrits.

ZUSAMMENFASSUNG

Insgesamt 40 Arten zugeordnet zu 17 Gattungen, die zur Unterordnung Ancyloceratina gehören, werden beschrieben. Eine Art ist neu. 16 sind aus dem Oberturonium, neun aus dem Untercampanium und 15 aus dem Obercampanium. Acht Typen von Aptychi werden beschrieben.

АБСТРАКТ

Всего в работе описано 40 видов, принадлежащих к 17 родам подотряда Ancyloceratina. Один вид является новым. 16 видов установлены в отложениях верхнего турона, девять в нижнем и 15 в верхнем кампане. Восемь типов аптихов также описаны в настоящей работе.

Published by Taylor & Francis Group

Edited by Y. Candela

William J. Kennedy

Oxford University Museum of Natural History,

Parks Road,

Oxford OX1 3PW

and

University of Oxford,

Department of Earth Sciences,

South Parks Road,

Oxford OX1 3AN

e-mail: [email protected]

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