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 | |
Chlamys corvina scallop | |
Crassostrea "sp. A" Sacco 1897 oyster | |
Pachecoa corvamnis clam | |
Venericardia (Venericor) "sp. F" Stewart 1930 clam | |
Caryocorbula willistoni Meyer 1885 clam Including Caryocorbula willistoni arkansia and Corbula (Caryocorbula) willistoni arkansia
Corbula (Caryocorbula) densata Conrad 1854 clam | |
| |
Pitar (Katherinella) trigoniata venus clam | |
| |
Gastropoda | |
"Turritella arenicola" = Kapalmerella arenicola, Turritella clevelandia
"Turritella arenicola" = Kapalmerella arenicola Conrad 1865 turret shell
Turritella clevelandia Harris 1894 turret shell | |
"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
| |
| |
Caricella subangulata Conrad 1854 volute |