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Abstract:

Hoplitocrioceras is a poorly-known ammonite genus of late Early Hauterivian age that may be endemic to the Neuquén Basin Argentina where it occurs at a clearly defined horizon in the Agrio Formation. It is an unusual genus with uncoiling (crioceratitid) whorls that remain linked by a thick dorsal shell that drapes over the tips of sharp upwardly-pointing ventro-lateral spines. It has been interpreted as either a necomitis or a crioceratitid but is here regarded as one of the last members of the Family Neocomitidae. One new species is proposed: H. giovinei. © 2001 Academic Press.

Registro:

Documento: Artículo
Título:Lower cretaceous ammonites from the neuquén basin argentina: The hauterivian neocomitid genus hoplitocrioceras(giovine 1950)
Autor:Aguirre-Urreta, M.B.; Rawson, P.F.
Filiación:Departamento de Ciencias Geológicas, Universidad de Buenos Aires, Ciudad Universitaria, Buenos Aires 1428, Argentina
Department of Geological Sciences, University College London, Gower Street, London WC1E 6BT, United Kingdom
Palabras clave:Ammonites; Argentian; Biostratigraphy; Lower cretaceous; Lower hauterivian; Neocomitidae; Neuquén basin; biostratigraphy; Cretaceous; Hauterivian; new species; paleontology; Argentina; Neuquen Basin; Ammonoidea; Ammonoidea; Hoplitocriceras; Neocomitidae; Neocomitidae
Año:2001
Volumen:22
Número:2
Página de inicio:201
Página de fin:218
DOI: http://dx.doi.org/10.1006/cres.2001.0247
Título revista:Cretaceous Research
Título revista abreviado:Cretaceous Res.
ISSN:01956671
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01956671_v22_n2_p201_AguirreUrreta

Citas:

---------- APA ----------
Aguirre-Urreta, M.B. & Rawson, P.F. (2001) . Lower cretaceous ammonites from the neuquén basin argentina: The hauterivian neocomitid genus hoplitocrioceras(giovine 1950). Cretaceous Research, 22(2), 201-218.
http://dx.doi.org/10.1006/cres.2001.0247
---------- CHICAGO ----------
Aguirre-Urreta, M.B., Rawson, P.F. "Lower cretaceous ammonites from the neuquén basin argentina: The hauterivian neocomitid genus hoplitocrioceras(giovine 1950)" . Cretaceous Research 22, no. 2 (2001) : 201-218.
http://dx.doi.org/10.1006/cres.2001.0247
---------- MLA ----------
Aguirre-Urreta, M.B., Rawson, P.F. "Lower cretaceous ammonites from the neuquén basin argentina: The hauterivian neocomitid genus hoplitocrioceras(giovine 1950)" . Cretaceous Research, vol. 22, no. 2, 2001, pp. 201-218.
http://dx.doi.org/10.1006/cres.2001.0247
---------- VANCOUVER ----------
Aguirre-Urreta, M.B., Rawson, P.F. Lower cretaceous ammonites from the neuquén basin argentina: The hauterivian neocomitid genus hoplitocrioceras(giovine 1950). Cretaceous Res. 2001;22(2):201-218.
http://dx.doi.org/10.1006/cres.2001.0247