Dinoflagellate cyst stratigraphy of the Kimmeridge Clay (Upper Jurassic) from the Dorset coast, Southern England

Palynology ◽  
1988 ◽  
Vol 12 (1) ◽  
pp. 65-88 ◽  
Author(s):  
James B. Riding ◽  
Joanna E. Thomas
Keyword(s):  
Upper Jurassic ◽  
Dinoflagellate Cyst ◽  
Southern England

scholarly journals A boring foraminiferan from the Upper Jurassic of England and Northern France

1993 ◽  
Vol 12 (1) ◽  
pp. 83-89 ◽  
Author(s):  
C. R. Plewes ◽  
T. J. Palmer ◽  
J. R. Haynes
Keyword(s):  
New Genus ◽  
Substrate Surface ◽  
Upper Jurassic ◽  
New Genus And Species ◽  
Southern England ◽  
Northern France

Abstract. Small rosette borings, consisting of an excavated pit from which is subtended a system of branching galleries, are common in carbonate skeletal substrates in the Upper Jurassic Oxford Clay (Callovian-Oxfordian) and Kimmeridge Clay (Kimmeridgian) of southern England and northern France. The opening of the pit onto the substrate surface is surrounded by an agglutinated collar, which suggests that they may be the work of Foraminifera. The new genus and species, Globodendrina monile, are erected to accommodate them. Other examples of boring in the Foraminiferida are reviewed. It is proposed that other similar rosette boring ichnogenera may also be the work of foraminiferans.

Dinoflagellate cysts from an allochthonous block of Nordenskjöld Formation (Upper Jurassic), north-west James Ross Island

1992 ◽  
Vol 4 (3) ◽  
pp. 267-278 ◽  
Author(s):  
Michael G. Snape
Keyword(s):  
New Species ◽  
Papua New Guinea ◽  
Antarctic Peninsula ◽  
Late Jurassic ◽  
New Genus ◽  
Upper Jurassic ◽  
Dinoflagellate Cysts ◽  
Dinoflagellate Cyst ◽  
North West ◽  
James Ross Island

An allochthonous block of the Nordenskjöld Formation from north-west James Ross Island, Antarctic Peninsula has yielded a diverse marine palynoflora. Dinoflagellate cyst assemblages from the 185 m thick sequence are described and compared with similar microfloras previously described from Australia, Papua New Guinea and Madagascar. A mid Tithonian (Late Jurassic) age is suggested for the section. One new genus, Helbydinium gen. nov. and four new species, Helbydinium scabratum sp. nov., Leptodinium acneum sp. nov., Leptodinium posterosulcatum sp. nov. and Rhynchodiniopsis foveata sp. nov. are described.

scholarly journals A note on the nomenclature of some Upper Jurassic dinoflagellate cyst taxa

1982 ◽  
Vol 1 (1) ◽  
pp. 53-53 ◽  
Author(s):  
Michael J. Fisher ◽  
Leslie A. Riley
Keyword(s):  
New Species ◽  
Upper Jurassic ◽  
Dinoflagellate Cyst ◽  
Publication Delay

Abstract. In 1980, several new species of dinoflagellate cyst taxa were validly published and named from the Kimmeridge Clay of England as part of a larger study on Kimmeridgian-Valanginian dinoflagellate cyst assemblages (Fisher & Riley, 1980); this study was originally presented at the IV International Palynological Conference, Lucknow in 1976–77. This note, necessitated by the long publication delay and numerous printing errors, comprises taxonomic re-allocations, taking account of subsequent studies (Norris, 1978; Stover & Evitt, 1978; Davey, 1979; Riley, 1979) and corrects inadvertent taxonomic errors.

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