Coccolith and Silicoflagellate Stratigraphy, South Atlantic Ocean, Deep Sea Drilling Project Leg 39

Bukry, David

doi:10.2973/dsdp.proc.39.132.1977

Cited by 14 publications

(12 citation statements)

References 1 publication

(2 reference statements)

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“…3 -After . 4 -Cores 5-6 were reported to be lower middle Eocene (Naviculopsis minor Zone) by Martini and Muller (1976), but may be as young as the D. hexacantha Zone of Bukry (1977) based on the occurrence of Dictyocha frenquelli, which is reported to be restricted to that zone in tropical and subtropical regions by Bukry (1981). This zone was correlated to NP16-NP17 by Bolli et al (1985).…”

Section: Norwegian-greenland Seamentioning

confidence: 88%

Cenozoic deep-water agglutinated foraminifera in the North Atlantic

Kaminski¹

1987

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Cenozoic (predominantly Paleogene) "flysch-type" agglutinated foraminiferal assemblages and their modern analogs in the North Atlantic and adjacent areas have been studied to provide an overview of their spatial and temporal distribution and utility for paleoenvironmental analysis. Over 200 species of agglutinated foraminifera have been recognized in Paleogene sediments from North Atlantic and Tethyan basins. This unified taxonomic data base enables the first general synthesis of biostratigraphic, paleobiogeographic and paleobathymetric patterns in flysch-type agglutinated assemblages from upper Cretaceous to Neogene sediments in the North Atlantic. The majority of taxa are cosmopolitan, but latitudinal, temporal and depth-related trends in diversity and species composition are observed among flysch-type assemblages.Modern deep-sea agglutinated foraminiferal faunas provide an analog to fossil flysch-type assemblages and serve as models for paleoecologic studies. Core-top samples from the Panama Basin, Gulf of Mexico and Nova Scotian continental rise were examined in order to determine the habitats of modern species of agglutinated foraminifera. The ecology of modern taxa provides constraints on the paleoenvironmental significance of fossil agglutinated assemblages in the North Atlantic, and their utility for paleoceanography.Towards this end, spade core samples from a 3912 m deep station in the Panama Basin were studied to determine abundance and microhabitat partitioning among living agglutinated foraminiferal populations and the preservation of dead assemblages. The genera Dendrophrya, Cribrostomoides and Ammodiscus have epifaunal habitats and the genus Reophax is predominantly infaunal. Species of Reophax are probably responsible for fine reticulate burrows observed in xradiographs. An experiment using recolonization trays in the Panama Basin was designed to identify opportunistic species of benthic foraminifera, and to assess the rate at which a population can colonize an abiotic substrate. The most successful colonizer at this site is Reophax, while Dendrophrya displays the lowest capability for dispersal. After nine months the abundance of living individuals in sediment trays was one-tenth to one-third that of background abundance, but the faunal diversity did not differ greatly from control samples. Recolonization by benthic foraminifera is more rapid than among macrofaunal invertebrates.Modern agglutinated assemblages from the Louisiana continental slope were examined to determine changes in species composition associated with hydrocarbon seeps. Organic-rich substrates are characterized by a decrease in astror--iihizids and an increase in trochamminids and textulariids. Highly organicenriched substrates with chemosynthetic macrofauna are dominated by Trochammina glabra and Glomospira charoides.The biostratigraphy of fossil agglutinated foraminifera in the North Atlantic is based on detailed analysis of 670 samples from 14 wells and one outcrop section, and examination of additional picked faunal...

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Section: Norwegian-greenland Seamentioning

confidence: 88%

Cenozoic deep-water agglutinated foraminifera in the North Atlantic

Kaminski¹

1987

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“…The four-sided Star-ofDavid group may also have continued into the Eocene, as we infer D. frenguellii to be related to other three-and four-sided silicoflagellates with unusual spines on the apical plate (D. deflandrei Frenguelli), struts (Corbisema spinosa Deflandre), or basal rings (Dictyocha hexacantha Schulz). The latter two of these taxa are sufficiently ambiguous to be placed in Corbisema by some workers (Perch-Nielsen, 1975;Onodera and Takahashi, 2009) and in Dictyocha by others (Bukry, 1977;Shaw and Ciesielski, 1983). Members of this presumably four-sided Star-ofDavid group persisted into the late Oligocene (Perch-Nielsen, 1975).…”

Section: Silicoflagellate Doublets Of the Star-of-david And Corner-almentioning

confidence: 92%

Silicoflagellate double skeletons in the geologic record

McCartney

Abe

Harrison

et al. 2015

Marine Micropaleontology

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“…Zonal schemes used are as follows: 1) Planktonic foraminifers: Cenozoic- Jenkins, 1971. 2) Calcareous nannofossils: Cenozoic- Bukry, 1973;Okada and Bukry, 1980;Edwards, 1971;Wise, this volume. Mesozoic-Thierstein, 1973;Roth, 1978;Medd, in press;Wise, this volume. 3) Radiolarians: Chen, 1975;Weaver, 1976.…”

Section: Biostratigraphymentioning

confidence: 99%

“…4) Diatoms: McCollum, 1975Schrader, 1976;Gombos, 1981;Weaver and Gombos, 1981;Gombos and Ciesielski, this volume;Ciesielski, this volume. 5) Silicoflagellates: Ciesielski, 1975;Bukry, 1975;Busen and Wise, 1977; Shaw and Ciesielski, this volume.…”

Section: Biostratigraphymentioning

confidence: 99%