Results 81 to 90 of about 2,265 (195)

Mesozoic stratigraphy and new Aptian cephalopods of el Vendrell, southwest of the Garraf Massif (Catalonia) [PDF]

open access: yes, 2016
En aquest treball es mostra l'estratigrafia del Mesozoic de l'extrem sud-oest del massís del Garraf i es dóna a conèixer per primera vegada una associació de cefalòpodes procedents de l'Aptià (Cretaci inferior) de l'entorn del municipi del Vendrell.
Albalat, David   +4 more
core  

Observations onAstiericeras astierianum(d'Orbigny, 1842) (Cretaceous Ammonoidea)

open access: yesGeological Magazine, 1986
AbstractAstiericeras astierianum(d'orbigny, 1842) is redescribed, the type material illustrated for the first time and the range of intraspecific variation and striking sexualdimorphism documented. Previous suggestions that the early ontogeny ofAstiericerassupports derivation fromDouvilleicerasde Grossouvre, 1894 of the Douvilleiceratinae are in error:
openaire   +2 more sources

La posición sistemática del orden Ammonoidea

open access: yesRevista del Museo de La Plata
Si quisiéramos comprobar la influencia de la especialización profesionalsobre la orientación mental de dos clases distintas de estudiosos, podríamospreguntar a un geólogo y a un zoólogo: ? ¿Qué se entiende por Ammonites?
Enrique Fossa Mancini
doaj  

A new early Smithian ammonoid fauna from the Salt Range (Pakistan) [PDF]

open access: yes, 2018
Recent extensive investigations in the Salt Range (Pakistan) yielded abundant, well-preserved ammonoid faunas of earliest to latest Smithian age that provided the basis for a major revision of Smithian ammonoid taxonomy and for the establishment of a ...
Brühwiler, Thomas   +4 more
core  

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.
core  

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

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
core  

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