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Holcoptychites agrioensis

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Journal Article
Journal: PALAIOS
Published: 01 February 2016
PALAIOS (2016) 31 (2): 41–54.
... of sclerobiont faunas as well. In this study, the sclerobiont faunas of Weavericeras vacaense (a spherocone) and Holcoptychites agrioensis (a discocone), two early Hauterivian ammonites from the Agrio Formation (Neuquén Basin, Argentina) were compared. The coeval nautilid Cymatoceras perstriatum (studied...
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A )  Weavericeras vacaense , CPBA 17000.16, with the right flank (within th...
in > PALAIOS
Published: 01 February 2016
Fig. 5.— A ) Weavericeras vacaense , CPBA 17000.16, with the right flank (within the oval area) and venter partially covered by a great amount of small oysters. B ) Holcoptychites agrioensis , CPBA 20011.12. C ) Holcoptychites agrioensis , CPBA 13978. Both with abundant oysters which had
Series: Geological Society, London, Special Publications
Published: 01 January 2005
DOI: 10.1144/GSL.SP.2005.252.01.15
EISBN: 9781862395008
... storm processes. Nektonic ammonoids and marine reptiles complement the association. A fossil assemblage of the mid-ramp is illustrated in Figure 5. It occurs in the Holcoptychites agrioensis Subzone in the Pilmatué Member. Cemented or rooted suspension-feeders. This guild is composed of erect...
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Series: Geological Society, London, Special Publications
Published: 01 January 2005
DOI: 10.1144/GSL.SP.2005.252.01.04
EISBN: 9781862395008
.... agrioensis (Weaver) (Fig. 6 d) so the name of the subzone has had to be changed (Aguirre-Urreta & Rawson 2003 ). The base of the highest subzone is marked by the abrupt replacement of Holcoptychites by Olcostephanus – the fourth, and final, invasion of the basin by that genus. The fauna is one...
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Journal Article
Published: 01 November 2004
Journal of Paleontology (2004) 78 (6): 1187–1191.
.... neocomiensis ( Leymerie, 1842 ), Pholadomya agrioensis Weaver, 1931 , Astarte elongata d'Orbigny, 1843 , Pecten vacaensis Weaver, 1931 , Gervillia anceps (Deshayes in Leymerie, 1842 ), Pinna robinaldina d'Orbigny, 1843 , and Gervillaria alaeformis (G. B. Sowerby, 1821); gastropods: Tylostoma...
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Journal Article
Published: 01 July 2011
Journal of Paleontology (2011) 85 (4): 719–743.
... of Isognomon ricordeanus (d'Orbigny) in Argentina include those specimens described by Lazo (2004 , p. 120–123, figs. 8.22, 7–10) from the Pilmatué and Agua de la Mula Members of the Agrio Formation in Neuquén. They were recorded from the Holcoptychites agrioensis Subzone of early Hauterivian age...
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