Results 41 to 50 of about 11,709 (248)
On the bases of the classification of Ammonites [PDF]
Proceedings of the Geologists' Association, 1893 n ...
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NOTES ON THE SPEETON AMMONITES [PDF]
Proceedings of the Yorkshire Geological Society, 1906 Anyone who knows a little about the Speeton sections can soon pick up a fairly representative series of their Belemnites, but not of their Ammonites; that demands much time and luck. Such at least has been my experience, for notwithstanding the exceptional opportunities for constant search afforded by several years’ residence almost on the spot, I have
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The Depositional Record, EarlyView.Our research uses a multidisciplinary approach, including organic and inorganic geochemistry, biostratigraphy, carbon isotope geochemistry and organic petrography to reconstruct depositional conditions and organic matter accumulation during the Pliensbachian and Toarcian.
Premila Wijesinghe +7 more
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LATE JURASSIC AND EARLY CRETACEOUS AMMONITES FROM THE WEIMEI FORMATION IN GYANGZE, SOUTHERN TIBET
Rivista Italiana di Paleontologia e Stratigrafia, 2004 The Weimei Formation in southern Tibet is a shallow marine sequence accumulated in the northern margin of the Indian subcontinent. It has been dated as Tithonian based on ammonites such as Haplophylloceras strigile (Blanford), Berriasella sp.
MASAHIKO TAKEI +7 more
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Problems of Ammonite Nomenclature [PDF]
Geological Magazine, 1938 While descriptions of new ammonites and of entirely new faunas are constantly being published, and (like progress in other sciences) seem, on the whole, to be rather welcomed, some palaeontologists are beginning to deplore the “smothering” of our science “by the abundance of its own material”.
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Catalysts for change: Museum gardens in a planetary emergency
PLANTS, PEOPLE, PLANET, EarlyView.Natural history museums are often seen as places with indoor galleries full of dry‐dusty specimens, usually of animals. But if they have gardens associated with them, museums can use living plants to create narratives that link outside spaces to inside galleries, bringing to life the challenges facing biodiversity.
Ed Baker +4 more
wiley +1 more source
Swiss Journal of Palaeontology, 2020 In the central Jura Mountains (Western Switzerland), the Urgonien Jaune (UJ) facies with the Marnes de la Russille beds (MRu) have provided very rich nannofloras associated with very rare Tethyan ammonites.
Eric De Kaenel +2 more
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, 2015 A fragmentary specimen of the diplomoceratid heteromorph Diplomoceras cylindraceum , one of three ammonite markers used for the definition of the base of the Maastrichtian Stage, is recorded from the middle Campanian of the Roztocze Hills, southeast ...
Zbigniew Remin, M. Machalski, J. Jagt
semanticscholar +1 more source
Towards a standard ammonite zonation for the Aptian (Lower Cretaceous) of northern Mexico
Revista Mexicana de Ciencias Geológicas, 2018 Detailed data on twenty-seven species of ammonites identified in three stratigraphic sections of northern Mexico, allow further refinement of the Aptian ammonite biozonations of previous authors. Four formal ammonite biozones are proposed.
Ricardo Barragán-Manzo +1 more
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