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Byram Marl, Mississippi, USA

Formation	Byram Marl
Age:	33.9 - 28.1 Ma Oligocene
Interval	Rupelian
Lithology	marl
Number of Collections	8
Number of Occurrences	56

Recorded Sample Locations

Location	Region	Stratigraphic Name
Old Byram	Rankin County, Mississippi, USA	Byram Marl
Vicksburg	Warren County, Mississippi, USA	Byram Marl
Vicksburg	Warren County, Mississippi, USA	Byram Marl
Woodward [Byram Marl]	Wayne County, Mississippi, USA	Byram Marl
Byram [Byram Marl]	Hinds County, Mississippi, USA	Byram Marl
TU Loc. 76 - Mint Springs Bayou [Mint Springs Marl]	Warren County, Mississippi, USA	Byram Marl

Associated Units

Stratigraphic Name	Age	Lithology	Occurrence Records
Vicksburg - Mint Springs	33.9 - 28.1 Ma Oligocene	claystone, marl	4

Recorded Fossils

Accepted Name	Type	Hierarchy	Age
Adeonellopsis sp. genus	6	Animalia : Bryozoa : Gymnolaemata : Cheilostomatida : Adeonidae : *Adeonellopsis*	33.9 - 28.1 Ma Oligocene
Arachnopusia sp. genus	6	Animalia : Bryozoa : Gymnolaemata : Cheilostomatida : Arachnopusiidae : *Arachnopusia*	33.9 - 28.1 Ma Oligocene
Hippoporina sp. genus	6	Animalia : Bryozoa : Gymnolaemata : Cheilostomata : Bitectiporidae : *Hippoporina*	33.9 - 28.1 Ma Oligocene
Etyus sp. genus	6	Animalia : Bryozoa : Gymnolaemata : Cheilostomata : Bryocryptellidae : *Etyus*	33.9 - 28.1 Ma Oligocene
Porella sp. genus	6	Animalia : Bryozoa : Gymnolaemata : Cheilostomatida : Bryocryptellidae : *Porella*	33.9 - 28.1 Ma Oligocene
Stamenocella sp. genus	6	Animalia : Bryozoa : Gymnolaemata : Cheilostomatida : Bugulidae : *Stamenocella*	33.9 - 28.1 Ma Oligocene
Scrupocellaria sp. genus	6	Animalia : Bryozoa : Gymnolaemata : Cheilostomatida : Candidae : *Scrupocellaria*	33.9 - 28.1 Ma Oligocene
Gephyrotes sp. genus	6	Animalia : Bryozoa : Gymnolaemata : Cheilostomatida : Cribrilinidae : *Gephyrotes*	33.9 - 28.1 Ma Oligocene
Puellina sp. genus	6	Animalia : Bryozoa : Gymnolaemata : Cheilostomatida : Cribrilinidae : *Puellina*	33.9 - 28.1 Ma Oligocene
Hincksina ocalensis species	7	Animalia : Bryozoa : Gymnolaemata : Cheilostomatida : Flustridae : Hincksina : *Hincksina ocalensis*	33.9 - 28.1 Ma Oligocene
Celleporaria sp. genus	6	Animalia : Bryozoa : Gymnolaemata : Cheilostomatida : Lepraliellidae : *Celleporaria*	33.9 - 28.1 Ma Oligocene
Lunularia sp. genus	6	Animalia : Bryozoa : Gymnolaemata : Cheilostomatida : Lunulariidae : *Lunularia*	33.9 - 28.1 Ma Oligocene
Oligotresium vicksburgensis species	7	Animalia : Bryozoa : Gymnolaemata : Cheilostomata : Lunulitidae : Oligotresium : *Oligotresium vicksburgensis*	33.9 - 28.1 Ma Oligocene
Margaretta sp. genus	6	Animalia : Bryozoa : Gymnolaemata : Cheilostomatida : Margarettidae : *Margaretta*	33.9 - 28.1 Ma Oligocene
Meniscopora sp. genus	6	Animalia : Bryozoa : Gymnolaemata : Cheilostomatida : *Meniscopora*	33.9 - 28.1 Ma Oligocene
Floridina sp. genus	6	Animalia : Bryozoa : Gymnolaemata : Cheilostomatida : Onychocellidae : *Floridina*	33.9 - 28.1 Ma Oligocene
Reteporella sp. genus	6	Animalia : Bryozoa : Gymnolaemata : Cheilostomata : Phidoloporidae : *Reteporella*	33.9 - 28.1 Ma Oligocene
Nellia sp. genus	6	Animalia : Bryozoa : Gymnolaemata : Cheilostomatida : Quadricellariidae : *Nellia*	33.9 - 28.1 Ma Oligocene
Nellia tenella species	7	Animalia : Bryozoa : Gymnolaemata : Cheilostomatida : Quadricellariidae : Nellia : *Nellia tenella*	33.9 - 28.1 Ma Oligocene
Hippomenella sp. genus	6	Animalia : Bryozoa : Gymnolaemata : Cheilostomatida : Escharinidae : *Hippomenella*	33.9 - 28.1 Ma Oligocene
Perigastrella sp. genus	6	Animalia : Bryozoa : Gymnolaemata : Cheilostomatida : Romancheinidae : *Perigastrella*	33.9 - 28.1 Ma Oligocene
Enoplostomella sp. genus	6	Animalia : Bryozoa : Gymnolaemata : Cheilostomatida : Schizoporellidae : *Enoplostomella*	33.9 - 28.1 Ma Oligocene
Trypostega venusta species	7	Animalia : Bryozoa : Gymnolaemata : Cheilostomatida : Trypostegidae : Trypostega : *Trypostega venusta*	33.9 - 28.1 Ma Oligocene
Diaperoecia sp. genus	6	Animalia : Bryozoa : Stenolaemata : Cyclostomatida : Diaperoeciidae : *Diaperoecia*	33.9 - 28.1 Ma Oligocene
Mecynoecia sp. genus	6	Animalia : Bryozoa : Stenolaemata : Cyclostomatida : Entalophoridae : *Mecynoecia*	33.9 - 28.1 Ma Oligocene
Idmonea sp. genus	6	Animalia : Bryozoa : Stenolaemata : Cyclostomatida : Idmoneidae : *Idmonea*	33.9 - 28.1 Ma Oligocene
Exochoecia sp. genus	6	Animalia : Bryozoa : Stenolaemata : Cyclostomatida : *Exochoecia*	33.9 - 28.1 Ma Oligocene
Pleuronea sp. genus	6	Animalia : Bryozoa : Stenolaemata : Cyclostomatida : Tubuliporidae : *Pleuronea*	33.9 - 28.1 Ma Oligocene
Oncousoecia sp. genus	6	Animalia : Bryozoa : Stenolaemata : Cyclostomata : Oncousoeciidae : *Oncousoecia*	33.9 - 28.1 Ma Oligocene
Congeris brevior species	7	Animalia : Chordata : Actinopteri : Anguilliformes : Muraenidae : Congeris : *Congeris brevior*	33.9 - 28.1 Ma Oligocene
Corvina gemma species	7	Animalia : Chordata : Actinopteri : Sciaenidae : Corvina : *Corvina gemma*	33.9 - 28.1 Ma Oligocene
Corvina pseudoradians species	7	Animalia : Chordata : Actinopteri : Sciaenidae : Corvina : *Corvina pseudoradians*	33.9 - 28.1 Ma Oligocene
Poirieria (Panamurex) macneili species	7	Animalia : Mollusca : Gastropoda : Neogastropoda : Muricidae : Poirieria : *Poirieria (Panamurex) macneili*	33.9 - 28.4 Ma Oligocene
Siphonochelus (Laevityphis) curvirostratus species	7	Animalia : Mollusca : Gastropoda : Neogastropoda : Muricidae : Siphonochelus : *Siphonochelus (Laevityphis) curvirostratus*	33.9 - 28.4 Ma Oligocene

References

Canu F., Bassler R. S. (1920) North American early Tertiary Bryozoa, Smithsonian Institute Bulletin 106, 1-843

Frizzell D. L., Lamber C. K. (1962) Distinctive "congrid type" fish otoliths from the lower Tertiary of the Gulf Coast (Pisces: Anguilliformes), Proceedings of the California Academy of Sciences 32 5, 87-101

Frizzell D. L., Dante J. H. (1965) Otoliths of some early Cenozoic fishes of the Gulf Coast, Journal of Paleontology 39 4, 687-718

Gertman R. L. (1969) Cenozoic Typhinae (Mollusca: Gastropoda) of the Western Atlantic region, Tulane Studies in Geology and Paleontology 7 4, 143-192

Vokes E. H. (1970) Cenozoic Muricidae of the Western Atlantic region. Part V - Pterynotus and Poirieria, Tulane Studies in Geology and Paleontology 8 1, 1-50

Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!

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