PALEOENVIRONMENTAL POLYMORPHISM IN THE GL OBOTRUNCANA OF THE ARCA GROUP (CRETACEOUS PLANKTONIC-FORAMINIFERA) - EXPERIMENTAL-STUDY BY IMAGE-ANALYSIS

Authors
BELLIER JP DEWEVER P
Citation
Jp. Bellier et P. Dewever, PALEOENVIRONMENTAL POLYMORPHISM IN THE GL OBOTRUNCANA OF THE ARCA GROUP (CRETACEOUS PLANKTONIC-FORAMINIFERA) - EXPERIMENTAL-STUDY BY IMAGE-ANALYSIS, Geobios, 27(3), 1994, pp. 285-291
Citations number
NO
Categorie Soggetti
Paleontology
Journal title
Geobios → ACNP
ISSN journal
00166995
Volume
27
Issue
3
Year of publication
1994
Pages
285 - 291
Database
ISI
SICI code
0016-6995(1994)27:3<285:PPITGO>2.0.ZU;2-5
Abstract
Morphological variations of the genus Globotruncana main species are e xaminated by the ''eigenshape'' analysis (ICULE program) which is appl ied to Cretaceous material for the first time (Upper Campanian and Maa strichtian of the Kef section, Tunisia). In spite of the small number of analysis (10 samples, 30 specimens in each sample), it is possible to conclude that : (1) the profil contour does not allow to distinguis h the several species of the arca group, (2) the average size is corre lated to paleodepth.