MGS 42 (Oligocene of the United States)

Where: Clarke County, Mississippi (31.9° N, 88.7° W: paleocoordinates 32.1° N, 82.2° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Glendon Formation (Vicksburg Group), Rupelian (33.9 - 28.1 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: mesofossils

Preservation: original aragonite, original calcite

Primary reference: D. T. Dockery. 1980. Invertebrate Macropaleontolgy of the Clarke County Mississippi Area. Bulletin - Mississippi Geological, Economic and Topographic Survey 122 [M. Kosnik/M. Kosnik/L. Eccles]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 99716: authorized by Jocelyn Sessa, entered by Laurie Eccles on 19.11.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Arcida - Glycymerididae
Glycymeris arctata Conrad 1848 clam
Echinoidea
 Spatangoida - Schizasteridae
"Schizaster (Paraster) americanus" = Schizaster americana
"Schizaster (Paraster) americanus" = Schizaster americana Clark and Twitchell 1915 heart urchin