Neogene and Pleistocene ostracodes, Sites 959 and 960, Gulf of Guinea

Guernet, Claude

doi:10.2973/odp.proc.sr.159.019.1998

Cited by 4 publications

(47 citation statements)

References 8 publications

(10 reference statements)

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“…(1996 b ) considered that the species identified as Cytherella serratula (Brady 1880) by Whatley and Coles (1987), which is also reported as Cytherella serratula by subsequent studies (Coles et al. 1996; Guernet 1998; Didié and Bauch 2000, 2001) and as Cytherella sp. by Mazzini (2005) and is apparently different from Cytherella serratula (see Aiello et al.…”

mentioning

confidence: 92%

Taxonomy of Quaternary Deep‐sea Ostracods From the Western North Atlantic Ocean

Yasuhara

Okahashi

Cronin³

2009

Palaeontology

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Late Quaternary sediments from Ocean Drilling Program (ODP) Hole 1055B, Carolina Slope, western North Atlantic (32°47.041¢ N, 76°17.179¢ W; 1798 m water depth) were examined for deep-sea ostracod taxonomy. A total of 13 933 specimens were picked from 207 samples and c. 120 species were identified. Among them, 87 species were included and illustrated in this paper. Twenty-eight new species are described. The new species are: Ambocythere sturgio, Argilloecia abba, Argilloecia caju, Argilloecia keigwini, Argilloecia robinwhatleyi, Aversovalva carolinensis, Bythoceratina willemvandenboldi, Bythocythere eugeneschornikovi, Chejudocythere tenuis, Cytheropteron aielloi, Cytheropteron demenocali, Cytheropteron didieae, Cytheropteron richarddinglei, Cytheropteron fugu, Cytheropteron guerneti, Cytheropteron richardbensoni, Eucytherura hazeli, Eucytherura mayressi, Eucytherura namericana, Eucytherura spinicorona, Posacythere hunti, Paracytherois bondi, Pedicythere atroposopetasi, Pedicythere kennettopetasi, Pedicythere klothopetasi, Pedicythere lachesisopetasi, Ruggieriella mcmanusi and Xestoleberis oppoae. Taxonomic revisions of several common species were made to reduce taxonomic uncertainty in the literature. This study provides a robust taxonomic baseline for application to palaeoceanographical reconstruction and biodiversity analyses in the deep and intermediate-depth environments of the North Atlantic Ocean.

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mentioning

confidence: 92%

Taxonomy of Quaternary Deep‐sea Ostracods From the Western North Atlantic Ocean

Yasuhara

Okahashi

Cronin³

2009

Palaeontology

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“…(Coles et al, 1994). Of the other species, Legitimocythere acanthoderma has occurred since the Early Miocene (Guernet, 1998), Bythoceratina scabra is present in the Eocene and Oligocene of Trinidad ( Van den Bold, 1960), and Cardobairdia glabra has been reported from the Early Miocene-Pliocene of the Caribbean ( Van den Bold, 1974). Therefore only one ostracod species, Bradleya normani, has not yet been reported from Middle Miocene or older strata.…”

Section: Diatomsmentioning

confidence: 99%

Evidence for an Early-Middle Miocene age of the Navidad Formation (central Chile): Paleontological, paleoclimatic and tectonic implications

Gutiérrez

Hinojosa

Roux

et al. 2013

andgeo

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ABSTRACT. The age of the Navidad Formation in central Chile has always been controversial, mainly due to the conflicting age ranges indicated by its macro-and microfossils. Macrofossils are generally interpreted as having been reworked from older, Early to Middle Miocene strata, whereas a Late Miocene-Pliocene age has been accepted on the basis of planktonic foraminifer index species. The results of this study, however, indicate that the macrofossils occur in situ, which necessitates a complete revision of the geochronological data. It is concluded that the evidence for an Early to Middle Miocene age is overwhelming, and that the planktonic foraminifer index species must have appeared in the SE Pacific earlier than elsewhere. These include Globoturborotalia apertura, Globorotalia puncticulata (Deshayes), Globorotalia spheriomizea (Walters), Neogloboquadrina pachyderma (Ehrenberg), and Neogloboquadrina acostaensis (Blow). An Early to Middle Miocene age for the Navidad Formation correlates well with a reinterpretation of its depositional environment as a continental shelf instead of a deepwater continental slope, global and regional paleoclimatic events, and the tectonic development of the Andes Range. RESUMEN. Evidencias de una edad miocena temprana-media de la Formación Navidad: Implicancias paleontológicas, paleoclimáticas y tectónicas. La edad de la Formación Navidad en Chile central siempre ha sido controversial, debido a los distintos rangos de edad indicados por los macro-y microfósiles. En general, se considera que los macrofósiles han sido retrabajados de estratos del Mioceno Temprano a Medio, y se aceptó una edad miocena tardía para esta unidad sobre la base de especies indicadoras de foraminíferos planctónicos. Sin embargo, los resultados de este estudio indican que los macrofósiles ocurren in situ, lo cual hace necesario una revisión completa de los datos geocronológicos. Se concluye que la evidencia por una edad miocena temprana a media es contundente, y que los foraminíferos planctónicos que indicarían una edad miocena tardía aparecieron más temprano en el SE del océano Pacífico que en otras partes. Estos foraminíferos incluyen Globoturborotalia apertura, Globorotalia puncticulata (Deshayes), Globorotalia spheriomizea (Walters), Neogloboquadrina pachyderma (Ehrenberg), y Neogloboquadrina acostaensis (Blow). Una edad miocena temprana a mediana correlaciona bien con la reinterpretación del ambiente deposicional como una plataforma continental en vez de un talud continental con agua profunda, eventos paleoclimáticos reconocidos a escala global y regional, y el desarrollo tectónico de los Andes. Medio, Tectonismo andino, Diagonal Árido. Palabras clave: Especies indicadoras de foraminíferos, Óptimo Climático del Mioceno

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“…Abyssocythere (especially Abyssocythere diagrenona (Guernet, 1985) and Abyssocythere scotti sp. nov.) is very similar to Batavocythere Kemper, 1971 but may be distinguished by its amphidont-type hinge.…”

Section: Remarksmentioning

confidence: 99%

“…Abyssocythere diagrenona (Guernet, 1985) FIGURES 7M-S, 8L-Q Bradleya (Quasibradleya)? diagrenona Guernet, 1985:293, pl.…”

Section: Remarksmentioning

confidence: 99%

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Taxonomy of Deep-sea Trachyleberidid, Thaerocytherid, and Hemicytherid Genera (Ostracoda)

Yasuhara¹,

Hunt²,

Okahashi³

et al. 2015

Smithsonian Contributions to Paleobiology

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of Deep-Sea Trachyleberidid, Thaerocytherid, and Hemicytherid Genera (Ostracoda). Smithsonian Contributions to Paleobiology, number 96, xii + 216 pages, 95 figures, 3 tables, 2015.-We conducted a comprehens ive systematic revision of deep-sea Trachyleberididae, Thaerocytheridae, and Hemicytheridae (Ostracoda, Crustacea) covering almost all Cenozoic genera using high-resolution scanning electron microscopy. Trachyleberididae, our main focus, is one of the most diverse and abundant ostracod families, but its genus-level taxonomy is still confusing. Approximately 700 specimens from 177 species from 47 genera were examined. The studied samples range in age from the Cretaceous to the present day and cover all major oceans in the world, including the Atlantic, Pacific, Indian, and Southern Oceans, the Mediterranean Sea, and the Gulf of Mexico. Five new genera and 45 new species are described:

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Neogene and Pleistocene ostracodes, Sites 959 and 960, Gulf of Guinea

Cited by 4 publications

References 8 publications

Taxonomy of Quaternary Deep‐sea Ostracods From the Western North Atlantic Ocean

Taxonomy of Quaternary Deep‐sea Ostracods From the Western North Atlantic Ocean

Evidence for an Early-Middle Miocene age of the Navidad Formation (central Chile): Paleontological, paleoclimatic and tectonic implications

Taxonomy of Deep-sea Trachyleberidid, Thaerocytherid, and Hemicytherid Genera (Ostracoda)

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