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Titolo:
Archaeopteris from the Upper Famennian of Belgium: heterospory, nomenclature, and palaeobiogeography
Autore:
Fairon-Demaret, M; Leponce, I; Streel, M;
Indirizzi:
Univ Liege, Serv Associes Paleontol, Dept Palaeobot, B-4000 Liege 1, Belgium Univ Liege Liege Belgium 1 ntol, Dept Palaeobot, B-4000 Liege 1, Belgium
Titolo Testata:
REVIEW OF PALAEOBOTANY AND PALYNOLOGY
fascicolo: 1-2, volume: 115, anno: 2001,
pagine: 79 - 97
SICI:
0034-6667(200105)115:1-2<79:AFTUFO>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
NEW-YORK; TREE;
Keywords:
Famennian; Archaeopteris; spores; synonymy; palaeobiogeography; progymnosperms;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
59
Recensione:
Indirizzi per estratti:
Indirizzo: Fairon-Demaret, M Univ Liege, Serv Associes Paleontol, Dept Palaeobot, Allee 6 Aout,Sart Tilman Bat B18, B-4000 Liege 1, Belgium Univ Liege Allee 6 Aout,Sart Tilman Bat B18 Liege Belgium 1
Citazione:
M. Fairon-Demaret et al., "Archaeopteris from the Upper Famennian of Belgium: heterospory, nomenclature, and palaeobiogeography", REV PALAE P, 115(1-2), 2001, pp. 79-97

Abstract

New fertile specimens of Archaeopteris roemariana from Upper (but not uppermost) Famennian strata of Belgium have been studied. Crowded sporangia areborne on non-laminate, three times bifurcate fertile leaves helically arranged around the fertile ultimate axes. Vegetative leaves occur both proximal and distal to the fertile leaves. Heterospory is demonstrated with miospores belonging to the Geminospora-Aneurospora complex and macrospores most probably to Contagisporites genus. The established morphological traits allow us to substantiate a synonymy between A. roemeriana and A. halliana. The apparent dominance of A. halliana on the eastern side of the Acadian mountains during Late Famennian times is discussed. (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 09/07/20 alle ore 17:46:32