Lower cretaceous ammonites from the neuquén basin argentina: The hauterivian neocomitid genus hoplitocrioceras(giovine 1950)

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 sh...

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Guardado en:
Detalles Bibliográficos
Publicado: 2001
Materias:
Ammonites
Argentian
Biostratigraphy
Lower cretaceous
Lower hauterivian
Neocomitidae
Neuquén basin
biostratigraphy
Cretaceous
Hauterivian
new species
paleontology
Argentina
Neuquen Basin
Ammonoidea
Hoplitocriceras
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01956671_v22_n2_p201_AguirreUrreta
http://hdl.handle.net/20.500.12110/paper_01956671_v22_n2_p201_AguirreUrreta
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_01956671_v22_n2_p201_AguirreUrreta
record_format dspace
spelling paper:paper_01956671_v22_n2_p201_AguirreUrreta2025-07-30T17:58:35Z Lower cretaceous ammonites from the neuquén basin argentina: The hauterivian neocomitid genus hoplitocrioceras(giovine 1950) Ammonites Argentian Biostratigraphy Lower cretaceous Lower hauterivian Neocomitidae Neuquén basin biostratigraphy Cretaceous Hauterivian new species paleontology Argentina Neuquen Basin Ammonoidea Ammonoidea Hoplitocriceras Neocomitidae Neocomitidae 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. 2001 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01956671_v22_n2_p201_AguirreUrreta http://hdl.handle.net/20.500.12110/paper_01956671_v22_n2_p201_AguirreUrreta
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Ammonites
Argentian
Biostratigraphy
Lower cretaceous
Lower hauterivian
Neocomitidae
Neuquén basin
biostratigraphy
Cretaceous
Hauterivian
new species
paleontology
Argentina
Neuquen Basin
Ammonoidea
Ammonoidea
Hoplitocriceras
Neocomitidae
Neocomitidae
spellingShingle Ammonites
Argentian
Biostratigraphy
Lower cretaceous
Lower hauterivian
Neocomitidae
Neuquén basin
biostratigraphy
Cretaceous
Hauterivian
new species
paleontology
Argentina
Neuquen Basin
Ammonoidea
Ammonoidea
Hoplitocriceras
Neocomitidae
Neocomitidae
Lower cretaceous ammonites from the neuquén basin argentina: The hauterivian neocomitid genus hoplitocrioceras(giovine 1950)
topic_facet Ammonites
Argentian
Biostratigraphy
Lower cretaceous
Lower hauterivian
Neocomitidae
Neuquén basin
biostratigraphy
Cretaceous
Hauterivian
new species
paleontology
Argentina
Neuquen Basin
Ammonoidea
Ammonoidea
Hoplitocriceras
Neocomitidae
Neocomitidae
description 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.
title Lower cretaceous ammonites from the neuquén basin argentina: The hauterivian neocomitid genus hoplitocrioceras(giovine 1950)
title_short Lower cretaceous ammonites from the neuquén basin argentina: The hauterivian neocomitid genus hoplitocrioceras(giovine 1950)
title_full Lower cretaceous ammonites from the neuquén basin argentina: The hauterivian neocomitid genus hoplitocrioceras(giovine 1950)
title_fullStr Lower cretaceous ammonites from the neuquén basin argentina: The hauterivian neocomitid genus hoplitocrioceras(giovine 1950)
title_full_unstemmed Lower cretaceous ammonites from the neuquén basin argentina: The hauterivian neocomitid genus hoplitocrioceras(giovine 1950)
title_sort lower cretaceous ammonites from the neuquén basin argentina: the hauterivian neocomitid genus hoplitocrioceras(giovine 1950)
publishDate 2001
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01956671_v22_n2_p201_AguirreUrreta
http://hdl.handle.net/20.500.12110/paper_01956671_v22_n2_p201_AguirreUrreta
_version_ 1840325304336252928

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