Where: Grant County, Louisiana (32.2° N, 92.1° W: paleocoordinates 33.2° N, 83.2° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Moodys Branch Formation (Jackson Group), Bartonian (41.3 - 38.0 Ma)
• supposedly "Auversian"; stage assignment based on Baum et al. 1994
•Moodys Branch=Bartonian (JAS 14 October 2010)
• group of beds-level stratigraphic resolution
Environment/lithology: marine; sandstone
Size class: mesofossils
Primary reference: L. D. Toulmin. 1977. Stratigraphic Distribution of Paleocene and Eocene Fossils in the Eastern Gulf Coast Region. Geological Survey of Alabama, Monograph 13(1):1-602 [M. Patzkowsky/K. Layou/P. Mannion]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 3534: authorized by Mark Patzkowsky, entered by Karen Layou on 04.08.1999, edited by Jason Head, Mark Uhen, Pete Wagner and Austin Hendy
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Anthozoa | |
Astrangia ludoviciana Vaughan 1900 stony coral | |
Balanophyllia irrorata stony coral
Endopachys maclurii Lea 1833 stony coral | |
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Bivalvia | |
Nucula yazooensis, "Nucula spheniopsis" = Nucula (Nucula) sphenopsis
"Nucula spheniopsis" = Nucula (Nucula) sphenopsis Conrad 1865 nut clam | |
Gigantostrea trigonalis Conrad 1854 oyster | |
Chlamys nupera Conrad 1854 scallop | |
Glycymeris filosa Conrad 1854 clam | |
Barbatia cuculloides Conrad 1833 clam | |
"Venericardia diversidentata" = Venericardia (Rotundicardia) diversidentata
"Venericardia diversidentata" = Venericardia (Rotundicardia) diversidentata Meyer 1885 clam | |
Bathytormus flexurus Conrad 1854 clam | |
Callista annexa Conrad 1865 venus clam
Pitar securiformis Conrad 1865 venus clam | |
Teredo mississippiensis Conrad 1854 clam | |
Scaphopoda | |
Cadulus margarita Harris and Palmer 1947 tusk shell | |
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Gastropoda | |
"Calyptraea aperta" = Calyptraea (Trochita) aperta
"Calyptraea aperta" = Calyptraea (Trochita) aperta Solander 1766 slipper shell | |
Calyptraphorus stamineus snail | |
Lapparia dumosa Conrad 1854 volute
Caricella polita Conrad 1854 volute
Athleta symmetricus Conrad 1854 volute | |
Agaronia mississippiensis Conrad 1848 snail | |
"Conus tortilis" = Conus sauridens
"Conus tortilis" = Conus sauridens Conrad 1833 cone shell | |
Pseudotoma heilprini Aldrich 1885 snail | |
Pleurofusia fluctuosa Harris 1937 turrid | |
Clavilithes humerosus snail | |
Fusimitra millingtoni mitre shell | |
Cypraeorbis ventripotens Cossmann 1903 cowry | |
"Cypraea ludoviciana n. sp." = Jenneria (Projenneria) ludoviciana1
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Natica permunda Conrad 1854 moon snail | |
Capulus americanus Conrad 1854 snail | |
Turritella creola Harris and Palmer 1947 turret shell | |
unclassified | |
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Osteichthyes | |
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Aves | |
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Reptilia | |
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Actinopteri | |
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"Conger brevior" = Congeris brevior2
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Chondrichthyes | |
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"Negaprion gibbesi" = Carcharhinus gibbesii4
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"Ginglymostoma serra" = Nebrius serra4
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"Odontaspis hopei" = Carcharias hopei4
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"Aetobatis sp." = Aetobatus4
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Echinoidea | |
"Schizaster armiger" = Paraster armiger
"Schizaster armiger" = Paraster armiger Clark and Twitchell 1915 heart urchin originally entered as "Scizaster armiger"
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