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United States Department of Interior Bureau of Ocean Energy Management, Regulation and Enforcement BOEMRE Biostratigraphic Chart of the Gulf of Mexico Offshore Region, Jurassic to Quaternary Recent through Oligocene Eocene through Jurassic Time Time CHRONOSTRATIGRAPHY BIOSTRATIGRAPHY CHRONOSTRATIGRAPHY BIOSTRATIGRAPHY (mya) BOEMRE (mya) BOEMRE (not to Foraminiferal planktic & benthic regional and Calcareous nannoplanktic regional and CHRONOZONE (not to Planktic & benthic foraminifera & ostracod (O) Calcareous nannoplanktic regional and CHRONOZONE System Subsystem Series Stage System Subsystem Series Stage scale) local markers local markers scale) regional and local markers local markers Holocene Globorotalia inflata 33.70 P Globorotalia cerroazulensis cocoaensis, Discoaster saipanensis, Globorotalia flexuosa Emiliania huxleyi (base of acme) r Hantkenina alabamensis Micrantholithus altus Upper Pontosphaera indooceanica i Textularia hockleyensis Discoaster barbadiensis U Q Sangamon fauna Gephyrocapsa oceanica flood PLU a Globorotalia cerroazulensis pomeroli I p Gephyrocapsa caribbeanica flood b Textularia dibollensis ———0.20——— o p u Helicosphaera inversa o Globigerinatheka tropicalis / mexicana Chiasmolithus consuetus EU n e P M Pseudoemiliania lacunosa "A" n Globigerinatheka semiinvoluta i i r a Globorotalia truncatulinoides coiling change, right-to-left Pseudoemiliania lacunosa "B" i Camerina moodybranchensis, Cribrocentrum reticulatum l d a Gephyrocapsa caribbeanica increase a Camerina jacksonensis e d n PLM t Gephyrocapsa omega n Sphenolithus obtusus i l ——37.00—— e Trimosina "A" Gephyrocapsa parallela Nonionella cockfieldensis Micrantholithus procerus, s Pseudoemiliania ovata Chiasmolithus grandis, ———0.78——— e t Stilostomella antillea Pseudoemiliania lacunosa "C" acme Pemma papillatum r o Globorotalia incisa Gephyrocapsa aperta acme Truncorotaloides rohri C Sphaeroidinella dehiscens acme "A" Scyphosphaera pulcherima, B Discorbis yeguaensis Pemma basquensis c a Gephyrocapsa caribbeanica (large) a Eponides yeguaensis Pemma stradneri n e L l Trimosina "A" acme r Nodosaria mexicana o a n Angulogerina magna t Ceratobulimina eximia Pemma balium a w b Hyalinea balthica / Trimosina "B" PLL E o Morozovella lehneri e e r Globorotalia tosaensis tosaensis o M n Eponides guayabalensis r r i i Helicosphaera sellii c i Globorotalia bullbrooki a d Sphaeroidinella dehiscens acme "B" Lithostromation perdurum T a Truncorotaloides topilensis n e d EM y Angulogerina "B" Calcidiscus macintyrei n Clavulinoides guayabalensis n l Uvigerina hispida Operculinoides sabinensis ———1.77——— e e Globorotalia crassula acme, Discoaster brouweri, e P Orbulinoides beckmanni Sphenolithus radians G Globorotalia praehirsuta Calcidiscus macintyrei increase Subbotina frontosa Chiasmolithus solitus Cristellaria "S" Discoaster brouweri "A" a Acarinina broedermanni Chiasmolithus gigas e ——41.30—— l Globorotalia menardii coiling change, left-to-right r L Cyclammina caneriverensis Discoaster sublodoensis, l u a Globorotalia exilis t Sphenolithus spiniger s Globorotalia miocenica Discoaster pentaradiatus e e Discocyclina advena t t i Globorotalia pertenuis o Morozovella aragonensis Rhabdosphaera inflata a i Bolivina imporcata / "P" Discoaster surculus a Haplocytheridea stenzeli (O) n Lenticulina 1 g n Discoaster lodoensis U ——49.00—— i Textularia crassisepta / "P" Chiasmolithus californicus ———2.60——— p e Ceratobulimina pacifica Discoaster asymmetricus Y Acarinina soldadoensis p p Cassidulina laevigata carinata acme / "L" PU n L Morozovella quetra e P a r Haplophragmoides emaciatum o Acarinina angulosa r i e e Saracenaria "H" w Morozovella rex / subbotinae P a s EL Globorotalia multicamerata Cycloperfolithus carlae, e Morozovella formosa formosa Tribrachiatus orthostylus c r i l e Discoaster tamalis r Globorotalia wilcoxensis Toweius crassus i a n Globoquadrina altispira = Valvulineria "H" n Morozovella acuta Tribrachiatus contortus o z Cyclammina sp. Discoaster multiradiatus ——54.50—— y c i Arenaceous fauna Morozovella velascoensis Fasciculithus tympaniformis a e Cibicides grosseperforatus Cytheridea sabinensis (O) Heliolithus kleinpellii n Sphaeroidinellopsis seminulina T Discorbis washburni Heliolithus reidelii n Textularia 1 h Planulorotalites pseudomenardii ———3.58——— a e Buccella (Eponides) hannai acme Sphenolithus abies Toweius eminens P U n Cibicides marsi Reticulofenestra pseudoumbilica, Chiasmolithus bidens a p e Discoaster intercalcaris, Morozovella angulata Discoaster diastypus p t Dictyococcites antarcticus l Planulorotalites pusilla pusilla LU Z e i a Globorotalia margaritae e Planulorotalites compressa L r a n Uvigerina rustica Pseudosphenolithus abies "B" acme o Vaginulina longiforma, o n c Globigerina druryi / nepenthes "B" Subbotina pseudobulloides w c l Globigerina nepenthes PL Morozovella uncinata e ——57.90—— e i Buliminella 1 Sphenolithus abies "B" Vaginulina midwayana, r Selandian a Siphotextularia jugosa / "J" Amaurolithus tricorniculatus n Globorotalia inconstans ——60.90—— n Sigmoilina "P" / cf. schlumbergeri e L Globorotalia trinidadensis Sphaeroidinellopsis multilobata o Globoconusa daubjergensis Cruciplacolithus edwardsii Globigerinoides mitra Ceratolithus acutus w Danian Robulus pseudocostata LL Globorotalia plesiotumida acme Discoaster quintatus e Markalius inversus astroporus ——-5.32——— M Globorotalia menardii coiling change, right-to-left Discoaster quinqueramus r Globigerina eugubina ——65.00—— e Discoaster berggrenii M Micula decussata s a s Globorotalia margaritae primitiva Abathomphalus mayaroensis Micula prinsii FAD a i Globorotalia juanai Reticulofenestra rotaria Globotruncana contusa Micula murus FAD s n Textularia "X" Discoaster berggrenii "A" Watznaueria barnesae FAD i t a Textularia tatumi r Nephrolithus frequens FAD n Bolivina denticulata i Gansserina gansseri ———7.12——— Textularia 6 Discoaster neohamatus c Rosita fornicata Bigenerina irregularis / 6 h Globotruncana ventricosa Reinhardites levis t Discoaster loeblichii i Tetralithus trifidus Globorotalia acostaensis coiling change, right-to-left a Tranolithus phacelosus Planulina renzi n Globotruncana lapparenti Aspidolithus parcus constrictus ——71.30—— Reophax davepopei, MUU Globotruncana calcarata Reinhardites anthophorus "A" Robulus "E" Globorotalites micheliniana Eiffellithus eximius Bigenerina floridana / "A" Minylithus convallis C Globotruncana elevata Aspidolithus parcus parcus Cristellaria "K" Catinaster mexicanus a Archaeoglobigerina bosquensis m Melonis pompilioides increase Discoaster bellus, Stensioina exsculpta exsculpta Reinhardites anthophorus "B" p Discoaster calcaris Marginotruncana marginata a KUU N Cibicides trincherasensis Lithastrinus grillii U n Uvigerina carapitana Marginotruncana coronata p i e T p Amphistegina "E" a Whiteinella baltica o G e Cyclammina 3 n Planoglobulina taylorana Bukryaster hayi r o r Discoaster prepentaradiatus u Broinsonia enormis t Globorotalia 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Helvetoglobotruncana helvetica i Uvigerina 3, Coccolithus miopelagicus t i Praeglobotruncana stephani, Calculites axosuturalis o Cibicides carstensi increase a Helvetoglobotruncana praehelvetica ——11.20—— Globorotalia fohsi robusta Discoaster kugleri n Parhabdolithus asper t c ——93.50—— e S Robulus 5 / 55 Microstaurus chiastius e C n Textularia "W" Discoaster kugleri acme a Globigerinelloides bentonensis Axopodorhabdus albianus KLU i r Globorotalia fohsi lobata Calcidiscus premacintyrei e Rotalipora cushmani Lithraphidites acutus e r MUM n Globorotalia fohsi praefohsi Cyclicargolithus floridanus Rotalipora greenhornensis Lithraphidites pseudoquatratus a o Globorotalia fohsi fohsi Discoaster sanmiguelensis Rotalipora appenninica Coriollithon kennedyi v m a Globorotalia peripheroacuta c Rotalipora reicheli a a M Bigenerina humblei Lenticulina gaultina, i l n Gyroidina miocenica Fossocytheridea lenoirensis (O), d l i r Globorotalia peripheroronda Favusella washitensis d i a Cristellaria "I" Sphenolithus heteromorphus MMM e Textularia rioensis l a n Praeorbulina glomerosa Discoaster petaliformis Rotalipora gandolfii e n ——98.90—— y Cibicides opima Sphenolithus heteromorphus acme Hayesites albiensis ——14.80—— C L Robulus 53 Helicosphaera ampliaperta o Planomalina buxtorfi a Amphistegina "B" Discoaster deflandrei acme o Braarudosphaera africana n m g Globorotalia siakensis coiling change, left-to-right Rotalipora ticinensis h Globigerinatella insueta MLM m A Ticinella roberti i a Robulus "L" / 43 Discoaster calculosus a l Cythereis fredericksburgensis (O), Cyth. brevis (O) Braarudosphaera hockwoldensis KUL n Cibicides 38 u
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  • Effects of the Oligocene Climatic Events on the Foraminiferal Record from Fuente Caldera Section (Spain, Western Tethys)

    Effects of the Oligocene Climatic Events on the Foraminiferal Record from Fuente Caldera Section (Spain, Western Tethys)

    Palaeogeography, Palaeoclimatology, Palaeoecology 269 (2008) 94–102 Contents lists available at ScienceDirect Palaeogeography, Palaeoclimatology, Palaeoecology journal homepage: www.elsevier.com/locate/palaeo Effects of the Oligocene climatic events on the foraminiferal record from Fuente Caldera section (Spain, western Tethys) L. Alegret a,⁎, L.E. Cruz a,b, R. Fenero a, E. Molina a, S. Ortiz a,c, E. Thomas d,e a Dpto. Ciencias de la Tierra (Paleontología), Facultad de Ciencias, Universidad de Zaragoza, 50009 Zaragoza, Spain b Escuela de Geología, Universidad Industrial de Santander. AA 678 Bucaramanga, Colombia c Department of Earth Sciences, University College London, WC1E 6BT London, UK d Center for the Study of Global Change, Department of Geology and Geophysics, Yale University, New Haven, Connecticut 06520-8109, USA e Department of Earth and Environmental Sciences, Wesleyan University, Middletown, Connecticut 06459-0139, USA article info abstract Article history: An expanded succession of upper Priabonian (upper Eocene) to Chattian (upper Oligocene) hemipelagic Received 31 January 2008 marls interbedded with turbiditic sandstone layers is present in the Spanish Fuente Caldera section (Subbetic Received in revised form 4 July 2008 Zone, western Tethys). We analyzed foraminifera from this section quantitatively, with emphasis on Accepted 9 August 2008 biostratigraphy and paleoecology. Benthic foraminifera indicate an upper to possibly upper–middle bathyal depth of deposition for most of the Keywords: studied section, with paleobathymetric analysis made difficult because of the common presence of shallow- Oligocene Foraminifera water taxa, some reworked by turbidites and others epiphytic taxa, which may have been transported by Biostratigraphy turbidites or by floating plant material. We identified three major biotic and paleoenvironmental events.
  • Bartonian-Priabonian Larger Benthic Foraminiferal Events in the Western Tethys______

    Bartonian-Priabonian Larger Benthic Foraminiferal Events in the Western Tethys______

    of CLIMATE & BIOTA the EARLY PALEOGENE Austrian Journal of Earth Sciences Volume 105/1 Vienna 2012 Bartonian-Priabonian larger benthic foraminiferal events in the Western Tethys_________________________________________ György LESS1)*) & Ercan ÖZCAN2) KEYWORDS 1) University of Miskolc, Institute of Mineralogy and Geology, H-3515, Miskolc-Egyetemváros, Hungary; larger benthic foraminifera 2) Department of Geology, İstanbul Technical University, Ayazağa/İstanbul 34469, Turkey; extinction Eocene *) Corresponding author, [email protected] Tethys Abstract The composition of Western Tethyan larger benthic foraminifera (LBF) significantly changed as a consequence of the general cli- mate cooling trend in the late Bartonian and Priabonian. Major events are characterized by the disappearance of giant forms of both Nummulites and Assilina and also of the genus Alveolina and some orthophragminid lineages. Simultaneously, radiate and especi- ally reticulate Nummulites, the N. fabianii lineage, and nummulitids with secondary chamberlets such as Heterostegina and Spiro- clypeus emerged. Based both on first/last occurrence (FO/LO) data and the evolution of these forms and integrating geological in- formation such as field observations, other LBF and planktonic data, a high-resolution stratigraphy of the Bartonian and Priabonian could be established in the frame of the Tethyan shallow benthic zonation (with SBZ zones and newly erected subzones for SBZ 18 and 19 based on the exceptionally rapid evolution of Heterostegina). We distinguish eight Western
  • 196. ECOLOGY of LIVING PLANKTONIC FORAMINIFERA in the NORTH and EQUATORIAL PACIFIC Oceanl JOHN S

    196. ECOLOGY of LIVING PLANKTONIC FORAMINIFERA in the NORTH and EQUATORIAL PACIFIC Oceanl JOHN S

    CONTRIBUTIONS FROM THE CUSHMAN FOUNDATION FOR FORAMINIFERAL RESEARCH 25 CONTRIBUTIONS FROM THE CUSHMAN FOUNDATION FOR FORAMINIFERAL RESEARCH VOLUME X, PART 2, APRIL, 1959 196. ECOLOGY OF LIVING PLANKTONIC FORAMINIFERA IN THE NORTH AND EQUATORIAL PACIFIC OCEANl JOHN S. BRADSHAW Scripps Institution of Oceanography, La Jolla, California ABSTRACT the results. James Moriarty drafted many of the Planktonic Foraminifera were examined from over 700 ill ustra tions. plankton tows taken at more than 400 stations in the North and equatorial Pacific Ocean. Twenty-seven species PREVIOUS WORK IN THE PACIFIC OCEAN were identified and their frequencies determined. Most specimens occur in the upper 100 m of water. The Work on the ecology of planktonic Foraminifera in species appear to be randomly distributed throughout the the North Pacific has lagged behind that in the At- upper levels with no indication of layering of the abun- lantic. Most of the papers include descriptions of dant species. bottom specimens dredged near oceanic islands but The planktonic Foraminifera in the North and equato- give little pertinent information about environmental rial Pacific can be grouped into four faunas: a cold-water fauna. a transition fauna. and two warm-water faunas. rei a tionships. The regions they inhabit appear to be differentiated by The first systematic sampling of living planktonic characteristic temperature and salinity values. The cold- Foraminifera in the Pacific was carried out by the water fauna is. limited to the area occupied by the Sub- CHALLENGER in 1874. Forty-five plankton sam- arctic Water mass while the warm-water faunas are found throughout the region occupied by the Equatorial ples, scattered throughout the North and South Pacific, and Central water masses.
  • The Challenger Report As Patellina Campanaeformis Does Not Ferred To

    The Challenger Report As Patellina Campanaeformis Does Not Ferred To

    FOR FORAMINIFERAL RESEARCH 17 The Patellina punctata Terquem (Essai Class. Anim. kerque, 1881, p. 128, pI. 16, figs. 9 a, b) may be a Recent speci- men belonging to P. corrugata, or may be one of the fossil species which occur in the material recorded by Terquem from this area. The figure is not conclusive. The Patellina plicata Terquem of the same paper (p. 72, pI. 8; figs. 9 a, b) is a Trochammina.. The high spired, thick-waned species described by Brady in the Challenger report as Patellina.. campanaeformis does not seem to be a true Pa.tellina. Parker and Jones have given the name Orbitolina annularis to a peculiar form found on the coast of Australia (Ann. Mag. Nat. Hist., ser. 3, vol. 6, 1860, p. 31) later referred to Patellina corrugata (Carpenter, Parker and Jones, Introd. Foram., 1862, p. 230, pI. 13, figs. 16, 17). These are large specimens with annular chambers and need further study. They have been re- ferred to as Patellina corfugata, var. annularis by Heron-Allen and Earland (Rept. British Antarctic Exped. Zoology, vol. 6, 1922, page 198). They mention that their New Zealand speci- mens represent transition stages. In my own New Zealand col- lections, there are specimens in which the divisions into cham- bers are few, but no annular chambers occur. With these are specimens of P. advena Cushman. Chapman figures a form with apparently annular chambers, but the early portion with sub- globular chambers (Journ. Quekett Micr. Club, ser. 2, vol. 10, 1907, p. 134, pI. 10, fig. 7). The fossil and Recent members of this group which are found in the Australian region seem particularly worthy of special study.