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	Provedor de dados 16 (2) Autor Aguirre-Urreta, M.B. (1) Alvarez, P.P. (1) Hoedemaeker, P.J. (1) Vasícek, V (1) Palavra-chave 38.22 (2) 42.73 (2) Berriasian (2) Ammonoidea (1) Argentina (1) Barremian (1) Calpionellidae (1) Groebericeras (1) Heteromorphic ammonites (1) Southeast Spain (1) Tithonian (1) Valanginian (1) Mais... Tipo do documento Article / Letter to the editor (2) Ano 2003 (1) 1999 (1) País Netherlands (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Small Berriasian, lower Valanginian and Barremian heteromorphic ammonites from the Río Argos succession (Caravaca, southeast Spain) 16 Vasícek, V; Hoedemaeker, P.J.. The small heteromorphic ammonites from the Berriasian, lower Valanginian and Barremian strata of the Río Argos succession (west of Caravaca, southeast Spain) are described. One new genus is introduced, Sabaudiella (type species Ancyloceras sabaudianum Pictet & de Loriol, 1858), and three new species, Sabaudiella argosensis (small paraspinoid shell), Protancyloceras obscurocostatum (weak retroverse ribs with small ventrolateral tubercles) and P.? evolutum (evolute shell with occasional fibulation). Tipo: Article / Letter to the editor Palavras-chave: Heteromorphic ammonites; Berriasian; Valanginian; Barremian; Southeast Spain; 42.73; 38.22. Ano: 2003 URL: http://www.repository.naturalis.nl/record/219234 The Berriasian genus Groebericeras in Argentina and the problem of its age 16 Aguirre-Urreta, M.B.; Alvarez, P.P.. Groebericeras bifrons Leanza is described from the Chacao Formation of central Mendoza and the Lo Valdés Formation of central Chile. The species appears limited to the Argentiniceras noduliferum Zone, which is traditionally placed in the lower Berriasian. Spanish records of Groebericeras appear to be younger (Hoedemaeker, 1982), while Groebericeras from Iraq were placed in the late Berriasian by comparison with the Spanish records (Howarth, 1992). Tipo: Article / Letter to the editor Palavras-chave: Ammonoidea; Groebericeras; Berriasian; Tithonian; Argentina; Calpionellidae; 38.22; 42.73. Ano: 1999 URL: http://www.repository.naturalis.nl/record/216194 Registros recuperados: 2 Primeira ... 1 ... Última

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