Where: St. Francis County, Arkansas (35.0° N, 90.8° W: paleocoordinates 35.9° N, 81.6° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Moodys Branch Formation (Jackson Group), Bartonian (41.3 - 38.0 Ma)
• member-level stratigraphic resolution
Environment/lithology: marine; lithology not reported
Size class: mesofossils
Primary reference: K. V. Palmer and D. C. Brann. 1965. Catalogue of the Paleocene and Eocene mollusca of the southern and eastern United States. Part 1. Pelecypoda, Amphineura, Peteropoda, Scaphopoda and Cephalopoda. Bulletins of American Paleontology 48:1-471 [M. Kosnik/M. Kosnik/J. Alroy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 99180: authorized by Jocelyn Sessa, entered by Laurie Eccles on 01.11.2010
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
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Corbula (Caryocorbula) densata Conrad 1854 clam
Caryocorbula willistoni Meyer 1885 clam Including Caryocorbula willistoni arkansia and Corbula (Caryocorbula) willistoni arkansia
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Pitar (Katherinella) trigoniata venus clam | |
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Venericardia (Venericor) "sp. F" Stewart 1930 clam | |
Chlamys corvina scallop | |
Crassostrea "sp. A" Sacco 1897 oyster | |
Pachecoa corvamnis clam | |
Gastropoda | |
Caricella subangulata Conrad 1854 volute | |
"Cornulina dalli" = Mazzalina dalli, Mazzalina inaurata
"Cornulina dalli" = Mazzalina dalli Harris 1894 snail
Mazzalina inaurata Conrad 1833 snail Including Mazzalina inaurata humerosa, Mazzalina inaurata oweni and Mazzalina inaurata pyrula
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Turritella clevelandia, "Turritella arenicola" = Kapalmerella arenicola
Turritella clevelandia Harris 1894 turret shell
"Turritella arenicola" = Kapalmerella arenicola Conrad 1865 turret shell |