MGS Loc. 75b - Waynesboro [Mint Spring Fm] (Oligocene of the United States)

Where: Wayne County, Mississippi (31.7° N, 88.7° W: paleocoordinates 31.9° N, 82.2° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Mint Spring Formation, Rupelian (33.9 - 28.1 Ma)

• formation-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; unlithified, calcareous sandstone

• fossiliferous sands with numerous lithified clay clasts toward the base.

Size class: mesofossils

Preservation: original aragonite, original calcite

Collection methods: bulk, mechanical,

• bivalves only

Primary reference: D. T. Dockery. 1982. Lower Oligocene Bivalvia of the Vicksburg Group in Mississippi. Mississippi Department of Natural Resources Bureau of Geology 123:1-261 [L. Ivany/S. DeLong/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 7114: authorized by Linda Ivany, entered by Elizabeth Kowalski on 27.04.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

• bivalves only**abundances are given as counts ONLY for those species with fewer than 100 specimens - for 100 or more, he just gives "A" for "abundant". In the case where a collection includes an "A", we enter abundance classes for species instead of counts as follows: Fewer than 10 specimens = R (rare)10 to 99 specimens = C (common)Greater than 99 specimens(Dockery's "A") = A (abundant)In this reference, "specimens" equals "valves"
Gastropoda
 Cerithioidea - Turritellidae
 Neogastropoda - Fasciolariidae
 Neogastropoda - Clathurellidae
 Neogastropoda - Turridae
Scobinella pluriplicata turrid
Scobinella pluriplicata subpluriplicata
 Sorbeoconcha - Vermetidae
Serpulorbis sp. Sasso 1827 worm shell
 Opisthobranchia - Cylichnidae
Scaphander hilgardi n. sp. snail
Bivalvia
 Arcida - Glycymerididae
Glycymeris suwannensis Mansfield 1937 clam
 Pectinida - Pectinoidae
"Pecten poulsoni" = Pecten (Pecten) poulsoni, "Spondylus filiaris" = Spondylus (Spondylus) filiaris
"Pecten poulsoni" = Pecten (Pecten) poulsoni Morton 1834 scallop
"Spondylus filiaris" = Spondylus (Spondylus) filiaris Dall 1916 scallop
 Ostreida - Pteriidae
Pteria argentea Conrad 1848 pearl oyster
 Ostreida - Ostreidae
Lopha vicksburgensis Conrad 1848 oyster
Ostrea paroxis Lesueur 1829 oyster
 Pholadida - Pholadidae
Jouannetia (Pholadopsis) triquetra clam
Jouannetia (Pholadopsis) triquetra
 Cardiida - Chamidae
Chama (Psilopus) mississippiensis Conrad 1848 jewel box
Chama (Psilopus) mississippiensis
 Cardiida - Veneridae
Callista sobrina venus clam
Chione craspedonta venus clam
 Carditida - Crassatellidae
Crassatella lirasculpta n. sp. Dockery 1982 clam
Scaphopoda
 Dentaliida - Dentaliidae