Rosefield Marl Beds, Louisiana: Late Oligocene, Louisiana
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Actinopteri
- Gadiformes
- Bregmacerotidae
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Bregmaceros sp.
Thompson 1840
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5 elements | |||||||||
Actinopteri
- Beryciformes
- Berycidae
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Centroberyx sp.
Gill 1862
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1 element | |||||||||
Actinopteri
- Priacanthidae
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Pristigenys obliquus
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2 elements | |||||||||
Actinopteri
- Haemulidae
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Haemulidae indet.
Gill 1885
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1 element | |||||||||
Orthopristis sp.
Girard 1858
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1 element | |||||||||
Actinopteri
- Spariformes
- Sparidae
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"Sparidarum" sp.
Bonaparte 1832
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7 elements | |||||||||
Family Sparidae | ||||||||||
Actinopteri
- Sciaenidae
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Umbrina aff. gemma
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463 elements | |||||||||
Actinopteri
- Perciformes
- Serranidae
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Centropristis sp.
Cuvier 1829
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2 elements | |||||||||
Actinopteri
- Pleuronectiformes
- Paralichthyidae
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Citharichthys sp.
Bleeker 1862
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29 elements | |||||||||
Actinopteri
- Ophidiiformes
- Ophidiidae
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"Neobythitinarum" meyeri
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24 elements | |||||||||
Family Ophidiidae | ||||||||||
Actinopteri
- Anguilliformes
- Congridae
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Congridae indet.
Kaup 1856
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2 elements | |||||||||
originally entered as "Congridae sp." | ||||||||||
Gnathophis dissimilis
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1 element | |||||||||
Ariosoma sp.
Swainson 1838
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72 elements | |||||||||
Pseudophichthys sp.
Roule 1915
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2 elements | |||||||||
Family Ophichthidae | ||||||||||
Paraconger sp.
Kanazawa 1961
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1 element | |||||||||
Ostracoda
- Podocopida
- Trachyleberididae
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Actinocythereis rosefieldensis
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Buntonia huneri
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Ostracoda
- Podocopida
- Cytherideidae
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Pontocythere sp.
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Ostracoda
- Podocopida
- Loxoconchidae
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Cytheromorpha rosefieldensis
Howe and Law 1936
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Loxoconcha woodwordensis
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Ostracoda
- Podocopida
- Candonidae
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Paracypris rosefieldensis
Howe and Law 1936
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Ostracoda
- Podocopida
- Hemicytheridae
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Echinocythereis mcguirti
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Jugosocythereis sp.
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Ostracoda
- Platycopida
- Cytherellidae
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Cytherella sp.
Jones 1849
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Ostracoda
- Platycopida
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Cytherelloidea byramensis
Howe and Law 1936
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Cytherelloidea chawneri
Howe and Law 1936
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unclassified
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Textualaria tumidula
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Dicorbitura dignata
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Chilogumbelina cubensis
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"Ophichthyidarum" brevior
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25 elements | |||||||||
Family Ophichthidae | ||||||||||
Myripistis sp.
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2 elements | |||||||||
? Alatocythereis sp.
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juvenile | ||||||||||
Cocoaia sp.
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Digmocyhere sp.
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Parcypris sp.
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Triagnulocypris ? gibsonensis
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Gymnolaemata
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Gymnolaemata indet.
Allman 1856
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Bivalvia
- Pectinida
- Pectinidae
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Pecten perplanus
Morton 1833
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byramensis | ||||||||||
Scaphopoda
- Dentaliida
- Dentaliidae
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Dentalium mississippiense
(Conrad 1848)
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Gastropoda
- Naticidae
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Albula sp.
Röding 1798
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2 elements | |||||||||
Anthozoa
- Scleractinia
- Dendrophylliidae
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Balanophyllia caulifera
(Conrad 1848)
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Anthozoa
- Scleractinia
- Oculinidae
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Archohelia vicksburgensis
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Planorbulinidae
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Planorbulina mediterranensis
d'Orbigny 1826
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Uvigerinidae
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Uvigerina vicksburgensis
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Reusselidae
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Reussella byramensis
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Reussella oligocenica
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Rotaliidae
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Rotalia byramensis
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Bolivinidae
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Bolivina alazanensis
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Bolivina byramensis
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Bolivina choctawensis
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Bolivina cookei
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Bolivina costifera
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Asterigerinidae
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Asterigerina subacuta
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Lepidocyclinidae
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Lepidocyclina supera
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Siphoninidae
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Siphonina advena
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Spirillinidae
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Spirillina vicksburgensis
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Spiroplectamminidae
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Spiroplectammina howei
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Spiroplectammina mississippiensis
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Elphidiidae
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Elphidium poeyanum
d'Orbigny 1948
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Globothalamea
- Rotaliida
- Nonionidae
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Nonionella hantkeni
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Nonionella tatumi
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Nonionella jacksonensis
Cushman 1933
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Nonion advenum
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Nonion decoratum
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Nonion alabamense
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Globothalamea
- Rotaliida
- Discorbidae
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Eponides byramensis
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Buccella vicksburgensis
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Discorbis subaraucana
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Globothalamea
- Rotaliida
- Cibicididae
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Cibicides americanus
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Cibicides choctawensis
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Cibicides lobatulus
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Cibicides mississippiensis
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Cibicides sassei
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Cibicides pseudoungerianus
(Cushman 1922)
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Globothalamea
- Rotaliida
- Gavelinellidae
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Gyroidina danvillensis
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Gyroidina vicksburgensis
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unclassified
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Marginulina sp.
d'Orbigny 1826
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Buliminidae
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Virgulina vicksburgensis
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Bifarina vicksburgensis
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Entosolenia orbignyana
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Bulimina ovata
d'Orbigny 1846
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Bitubulogerina vicksburgensis
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Angulogerina byramensis
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Buliminella sp.
Cushman 1911
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Tubothalamea
- Miliolida
- Cornuspiridae
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Cornuspira byramensis
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Tubothalamea
- Miliolida
- Miliolidae
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Spiroloculina sp.
d'Orbigny 1826
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Tubothalamea
- Miliolida
- Hauerinidae
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Articulina byramensis
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Triloculina byramensis
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Triloculina sculptura
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Massilina sp.
Schlumberger 1893
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Quinqueloculina cookei
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Quinqueloculina vicksburgensis
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Globigerinidae
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Globigerina sp.
d'Orbigny 1826
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Nodosariata
- Robertinida
- Ceratobuliminidae
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Lamarckina byramensis
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Nodosariata
- Polymorphinida
- Polymorphinidae
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Guttulina byramensis
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Globulina gibba
d'Orbigny 1832
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Sigmomorphina pulchra
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Polymorphina advena
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Nodosariata
- Vaginulinida
- Vaginulinidae
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Saracenaria moresiana
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Lenticulina cultrata
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Lenticulina vicksburgensis
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Lenticulina rotulata
Lamarck 1804
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Nodosariata
- Nodosariida
- Nodosariidae
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Vaginulina sp.
d'Orbigny 1826
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Planularia sp.
Defrance 1826
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Lagena hexagona
(Williamson 1848)
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Nodosaria vertebralis
Brady 1884
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Dentalina emaciata
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Dentalina monroei
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Dentalina praecatesbyi
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Dentalina pseudoinvolons
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Dentalina hantkeni
Cushman 1935
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Chrysalogonium vicksburgense
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Heterohelicidae
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Bolivinella subpectinata
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Bolivinella vicksburgensis
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see common names |
Geography
Country: | United States | State/province: | Louisiana | County: | Catahoula |
Coordinates: | 31.9° North, 92.0° West (view map) | ||||
Paleocoordinates: | 32.4° North, 86.6° West | ||||
Basis of coordinate: | based on nearby landmark | ||||
Geographic resolution: | outcrop |
Time
Period: | Paleogene | Epoch: | Oligocene |
Stage: | Chattian | 10 m.y. bin: | Cenozoic 4 |
Key time interval: | Late Oligocene | ||
Age range of interval: | 27.82 - 23.03 m.y. ago |
Stratigraphy
Geological group: | Vicksburg | Formation: | Mosley Hill | Member: | Rosefield Marl |
Stratigraphy comments: "The Rosefield Marl Beds are Oligocene in age (approximately 34 million years old) and correspond to the P19 planktonic foraminiferal zonation." |
Lithology and environment
Primary lithology: | shelly/skeletal unlithified marl | ||
Secondary lithology: | brown claystone | ||
Includes fossils? | Y | ||
Includes fossils? | Y | ||
Lithology description: "The Rosefiled Marl Beds consist of several distinct thin layers of a light-colored, highly fossiliferous coquina with intervening light-brown clay layers with few macroscopic fossils." | |||
Environment: | offshore shelf | Tectonic setting: | passive margin |
Glacial or sequence phase: | transgressive | ||
Geology comments: "The fauna consists of ...with species found in both inner and middle shelf zones ... clay unit, including rare species of deep middle shelf habitats ... suggests a local transgression of the shoreline which introduced the inner, then middle, self species into the sediments with progressive deepening." |
Taphonomy
Modes of preservation: | body,original calcite |
Size of fossils: | macrofossils,mesofossils,microfossils |
Collection methods and comments
Collection excludes: | some macrofossils,some microfossils |
Collection methods: | bulk,surface (in situ),sieve,field collection |
Reason for describing collection: | biostratigraphic analysis |
Collection method comments: "Bulk and surface sampling were utilized at the type locailty of the Rosefield Marl Beds for this study. Approximately 40kg of sample was collected from the coquina layer (shell bed of early publications) for vertebrated analysis(primarily for fish otoliths). The bulk sample was wet-screened through a 40-mesh sieve and air drid. Microfaunal samples (approximately 1kg) were taken from the coquina layer and a thin clay layer immediately above the coquina. Samples were dried and wet-screened through a 200 mesh screen, heat-dried in an oven then picked for microfauna, including foraminifera, ostracodes, microinvertebrates, and microvertebrates. Systematic surface collections were also utilized at the type locality (the exposure of the coquinia layer is quite limited). Basically all macroscopic remains that were one-half whole or greater were collected." |
Metadata
Database number: | 44521 | ||
Authorizer: | L. Ivany | Enterer: | P. Wall |
Modifier: | A. Hendy | Research group: | marine invertebrate,vertebrate |
Created: | 2004-09-15 10:42:48 | Last modified: | 2007-02-04 17:39:01 |
Access level: | the public | Released: | 2004-09-15 10:42:48 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
11673. | G. L. Stringer, S. Q. Breard, and M. Kontrovitz. 2001. Biostratigraphy and Paleoecology of Diagnostic Invertebrates and Vertebrates from the Type Locality of the Oligocene Rosefiled Marl Beds, Louisiana. Gulf Coast Association of Geological Societies Transactions LI:321-328 [L. Ivany/P. Wall/P. Wall] |