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Titolo:
The recovery and radiation of Early Jurassic ammonoids: morphologic versuspalaeobiogeographical patterns
Autore:
Dommergues, JL; Laurin, B; Meister, C;
Indirizzi:
Univ Bourgogne, Ctr Sci Terre, F-21000 Dijon, France Univ Bourgogne Dijon France F-21000 Ctr Sci Terre, F-21000 Dijon, France Univ Bourgogne, CNRS, UMR 5561, F-21000 Dijon, France Univ Bourgogne Dijon France F-21000 NRS, UMR 5561, F-21000 Dijon, France Museum Hist Nat, Dept Geol & Paleontol Invertebres, CH-1211 Geneva, Switzerland Museum Hist Nat Geneva Switzerland CH-1211 , CH-1211 Geneva, Switzerland
Titolo Testata:
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
fascicolo: 3-4, volume: 165, anno: 2001,
pagine: 195 - 213
SICI:
0031-0182(20010115)165:3-4<195:TRAROE>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
AMMONITE FAUNAS; EVOLUTION;
Keywords:
ammonoidea; biodisparity; early Jurassic; morphospace; palaeobiogeography;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
41
Recensione:
Indirizzi per estratti:
Indirizzo: Dommergues, JL Univ Bourgogne, Ctr Sci Terre, 6 Blvd Gabriel, F-21000 Dijon, France Univ Bourgogne 6 Blvd Gabriel Dijon France F-21000 France
Citazione:
J.L. Dommergues et al., "The recovery and radiation of Early Jurassic ammonoids: morphologic versuspalaeobiogeographical patterns", PALAEOGEO P, 165(3-4), 2001, pp. 195-213

Abstract

The recovery and radiation of the Early Jurassic ammonoid morphospace, as represented by nine morphologic groups identified in an earlier study, are traced through the first 36 subzones of the Hettangian to Domerian time interval. A quantitative survey of the dispersion of 436 species over 15 palaeogeographical areas reveals seven palaeobiogeographical patterns, each corresponding to an exclusive set of species exhibiting similar characteristicsin terms of distribution and abundance. This study combines morphologic, chronostratigraphical, and palaeobiogeographical data in an attempt to investigate possible connections between morphologic recovery and radiation patterns and the history of ammonoid distribution on a global scale. Two out ofnine morphologic groups are found to be prevalent in a single palaeobiogeographical pattern through the major part of the studied time interval, and a single morphologic group prevails in all the marine areas considered during Domerian times. All the other relationships identified are less tightly constrained in space and time and indicate loose ties over more limited periods and narrower distributions. The present results suggest that such complex relationships can be deciphered more successfully by using analytical palaeobiogeographical patterns as proposed here rather than classical palaeobiogeographical units (biochores). (C) 2001 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 11/07/20 alle ore 07:16:16