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Titolo:
Gonyaulacacean dinoflagellate cysts with multi-plate precingular archaeopyle
Autore:
Feist-Burkhardt, S; Monteil, E;
Indirizzi:
Tech Univ Darmstadt, Inst Geol & Palaeontol, D-64287 Darmstadt, Germany Tech Univ Darmstadt Darmstadt Germany D-64287 D-64287 Darmstadt, Germany BG Technol, Gas Res & Technol Ctr, Loughborough LE11 3GR, Leics, England BG Technol Loughborough Leics England LE11 3GR h LE11 3GR, Leics, England
Titolo Testata:
NEUES JAHRBUCH FUR GEOLOGIE UND PALAONTOLOGIE-ABHANDLUNGEN
fascicolo: 1-2, volume: 219, anno: 2001,
pagine: 33 - 81
SICI:
0077-7749(200101)219:1-2<33:GDCWMP>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
SEA DRILLING PROJECT; STRATIGRAPHY; MIDDLE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
36
Recensione:
Indirizzi per estratti:
Indirizzo: Feist-Burkhardt, S Tech Univ Darmstadt, Inst Geol & Palaeontol, Schnittspahnstr 9, D-64287 Darmstadt, Germany Tech Univ Darmstadt Schnittspahnstr 9 Darmstadt Germany D-64287
Citazione:
S. Feist-Burkhardt e E. Monteil, "Gonyaulacacean dinoflagellate cysts with multi-plate precingular archaeopyle", N J GEO P-A, 219(1-2), 2001, pp. 33-81

Abstract

The morphology of fossil gonyaulacacean dinoflagellate cysts with multi-plate precingular archaeopyle has been analysed in detail using different microscopical methods, namely transmitted light microscopy, scanning electron microscopy and the new technique of confocal laser scanning microscopy. Theanalyses made evident, that important morphological characteristics used so far for the differentiation of the two genera Dissiliodiniun DRUGG 1978 emend. BAILEY & PARTINGTON 1991 and Durotrigia BAILEY 1987 are not appropriate. The genus Dissiliodinium is therefore emended. For the unambiguous differentiation between the genera Dissiliodinium acid Durotrigia the manner ofhow paratabulation is expressed on the cyst's surface is used as discriminating feature. In the genus Dissiliodinium paratabulation may be expressed by negative structures, such as grooves, reduction of ornamentation or penitabular ornamentation, in the genus Durotrigia paratabulation is expressed by elevated, positive structures, such as septa, crests or ridges. Five newspecies from the early Middle Jurassic of England, France and Germany are described, three belong to the genus Dissiliodinium (D. baileyi n. sp., D. lichenoides n.sp., D. minimum n.sp.), one to Durotrigia (D. omentifera n.sp.) and one to the new genus Cavatodissiliodinium with the type species C. hansgochtii n.g. et n.sp. Some complementary remarks on the morphology of the early Cretaceous species Dissiliodinium curiosum BURGER Br SARJEANT 1995 are provided. A summary of the major morphological features for specific separation as well as the known geographical and stratigraphical distributionis documented for all species belonging to the genus Dissiliodinium. All newly described taxa are considered to be useful stratigraphical markers.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 14/07/20 alle ore 18:08:41