Results 91 to 100 of about 2,224 (181)

The ammonite genus Diaziceras Spath, 1921, from the Campanian of KwaZulu-Natal, South Africa, and Madagascar [PDF]

open access: yes, 2012
The ammonite genus Diaziceras Spath, 1921, and the type species, D. tissotiaeforme are revised and referred to the subfamily Lenticeratinae Hyatt, 1900, of the family Sphenodiscidae Hyatt, 1900.
Kennedy, William James   +1 more
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RAIMONDICERAS RAIMONDII (GABB, 1877) (AMMONOIDEA): ESTUDIO TAXONÓMICO PRELIMINAR

open access: yesBiotempo, 2019
De una colección taxonómica de referencia depositada en el Departamento de Paleontología del Museo de Historia Natural “Vera Alleman Haeghebaert” de la Universidad Ricardo Palma, Lima, Perú, se identifi có, registró y describió diez y siete ejemplares del género Raimondiceras Spath, 1924, de los cuales doce ejemplares fueron atribuidos a la especie ...
openaire   +3 more sources

Excursion Le Crétacé de l'Arc de Castellane (SE France) (25- 28 août 2010)

open access: yes, 2010
International audienceLe développement de la stratigraphie événementielle (événements anoxiques océaniques globaux, " crises tectoniques ", eustatisme, renouvellement biologiques, etc.), conduit à la recherche de référentiels de terrain.
Bulot, Luc Georges   +2 more
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Stratigraphical interpretation of Chalk Group macrofossils from Sheet 266 (Marlborough) : May 2011 [PDF]

open access: yes, 2011
Macrofossils from surface and outcrop exposures of the Chalk Group on Sheet 266 (Marlborough) were collected in May 2011 in connection with the resurvey of that district.
Woods, M.A.
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La posición sistemática del orden Ammonoidea

open access: yesRevista del Museo de La Plata, 1936
Si quisiéramos comprobar la influencia de la especialización profesional sobre la orientación mental de dos clases distintas de estudiosos, podríamos preguntar a un geólogo y a un zoólogo: —¿Qué se entiende por Ammonites? Con toda probabilidad, el geólogo respondería algo así: —Los ammonites son conchas fósiles, generalmente simétricas y regularmente ...
openaire   +2 more sources

Ammonites from the latest Aalenian-earliest Bathonian of La Baume (Castellane area, SE France): palaeontology and biostratigraphy [PDF]

open access: yes, 2018
Middle Jurassic strata are naturally exposed around the village called La Baume, near Castellane (Alpes de Haute Provence, SE France). We have realized both a detailed log and a bed-by-bed sampling for ammonite biostratigraphy in a 68 metres thick ...
Cecca, Fabrizio   +3 more
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Dienerian (Early Triassic) ammonoids from the Candelaria Hills (Nevada, USA) and their significance for palaeobiogeography and palaeoceanography [PDF]

open access: yes, 2018
A well-preserved ammonoid fauna of Early Dienerian age has long been known from the lower portion of the Candelaria Formation in the old Candelaria silver mining district in Mineral and Esmeralda Counties, Nevada, but for a number of reasons, this fauna ...
Bucher, Hugo   +3 more
core  

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