Results 181 to 190 of about 4,344 (221)

Hauterivian-Barremian (Lower Cretaceous) dinoflagellate cyst stratigraphy of the western Mediterranean

Cretaceous Research, 1997
Abstract This paper focuses on the qualitative dinoflagellate cyst distribution in the Hauterivian-Barremian rocks of the western Mediterranean. Results are presented of research on the ammonite controlled pelagic Rio Argos succession near Caravaca (southeast Spain) which are integrated with information on calibrated sections in southeast France and ...
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Lower Cretaceous ammonites from the Neuquén Basin, Argentina: a Hauterivian Olcostephanus fauna

Cretaceous Research, 2001
Abstract The olcostephanid fauna of the Olcostephanus ( O .) laticosta [formerly O . ( O .) leanzai ] Subzone (Agrio Formation) represents the last of four discrete invasions of olcostephanid ammonites into the Neuquen Basin of west-central Argentina.
Marı́a B. Aguirre-Urreta, Peter F. Rawson   +1 more
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Berriasian to lower Hauterivian palynostratigraphy, U.K. onshore and Outer Moray Firth

Micropaleontology, 2018
Detailed palynofloral analysis of Lower Cretaceous sections at Speeton (northeast England) and in the UKCS Outer Moray Firth has involved 31 outcrop samples and over 1100 well samples fromGolden Eagle Field (UKCSblocks 14/26a and 20/01), including extensive conventional core.Very close sampling, particularly within theValanginian, has allowed some ...
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Upper Hauterivian with Clypeina ?solkani

2007
The fossil assemblage in this locality contain numerous dasyclads Clypeina ?solkani CONRAD & RADOIČIĆ. Sedimentological characteristics and occasional accumulation of fossil material indicate that sedimentation took place in the lagoonal– shallow subtidal– intertidal environments. The age is Upper Hauterivian.
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LOWER CRETACEOUS AMMONITES FROM NORTHEAST ENGLAND THE HAUTERIVIAN GENUS SIMBIRSKITES

1971
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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LOWER CRETACEOUS AMMONITES FROM NORTHEAST ENGLAND THE HAUTERIVIAN HETEROMORPH AEGOCRIOCERAS

1975
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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CYCLOSTRATIGRAPHY IN THE HAUTERIVIAN-BARREMIANFRIELINGEN CORE (LOWER SAXONY BASIN, GERMANY)

2017
Astrochronology has proven to be a powerful method to constrain the duration of geological periods.However, in some geological periods, cyclostratigraphic studies give diverging results. For instance, theduration of the Hauterivian Stage was estimated as 3.5 myr in central Italy, and 5.9± 0.4 myr in South-EasternFrance and South-Eastern Spain.
Wouters, Sébastien, Bornemann, André, Erbacher, Jochen, Martinez, Mathieu, Al., Et   +4 more
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Comments and proposals about the Valanginian-Lower Hauterivian ammonite zonation of south-eastern France

1999
L’étude détaillée de la succession des ammonites du Valanginien et de l’Hauterivien inférieur, sur neuf coupes de référence situées dans le bassin Vocontien, nous conduit à apporter des modifications à la zonation qui a été précédemment établie dans la même région.
Reboulet, Stéphane, Atrops, François
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A LITHOLOGICAL SUBDIVISION OF THE SPEETON CLAY C BEDS (HAUTERIVIAN), EAST YORKSHIRE

Proceedings of the Yorkshire Geological Society, 1969
Summary The lithology of the Speeton Clay C Beds (Hauterivian) at the type locality in Yorkshire is described. Of the eleven broad divisions originally described by Lamplugh (1889), C1, C2, C4, C5, C7, C9 and C11 are subdivided on a lithological basis.
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Upper Hauterivian algae – south of Mali Troglav

2007
Hauterivian deposits suth of Mali Troglav (Biokovo Mt.) contain scarce complete specimens and abundant fragments of dasyclad algae: Humiella catenaeformis (RADOIČIĆ), Clypeina ? solkani CONRAD & RADOIČIĆ, Salpingoporella annulata CAROZZI and Salpingoporella sp. (? n.sp. – in analysis).
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