Sohl and Koch OFR # 25 (Cretaceous of the United States)

Also known as Davis Lake; USGS # 32314

Where: Chickasaw County, Mississippi (34.0° N, 88.9° W: paleocoordinates 37.6° N, 66.4° W)

• small collection-level geographic resolution

When: Gansserina gansseri foram zone, lower Member (Chiwapa Formation), Early/Lower Maastrichtian (70.6 - 66.0 Ma)

• No forams have been recovered from this unit, it is assigned to the Gansserina gansseri zone by Mancini et al. (1996) by sequence stratigraphy and the biostratigraphy of surrounding units. Haustator bilira assemblage zone.

• member-level stratigraphic resolution

Environment/lithology: marine; lithified, glauconitic, gray sandstone

Size class: mesofossils

Preservation: original calcite

Reposited in the USGS

Collection methods: bulk,

• Sohl collection

Primary reference: N. F. Sohl and C. F. Koch. 1987. Upper Cretaceous (Maestrichtian) larger invertebrates from the Haustator bilira Assemblage Zone in the Atlantic Coastal Plain with further data for the East Gulf. USGS Open File Report 87-194:1-172 [M. Kosnik/M. Kosnik]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 4116: authorized by Matt Kosnik, entered by Matt Kosnik on 14.08.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Demospongiae
 Clavulina - Clionaidae
Cliona sp. demosponge
Clione sp.
Bryozoa
  -
Bryozoa indet. Ehrenberg 1831
Bryozoa (encrusting)
Bivalvia
 Trigoniida - Megatrigonioidae
Pterotrigonia (Scabrotrigonia) eufaulensis Gabb 1860 clam
Pterotrigonia (Scabrotrigonia) euf
 Cardiida - Cardiidae
Trachycardium eufaulensis Conrad 1860 cockle
Trachycardium eufaulensis (Conrad)
 Mytilida - Crenellidae
Crenella serica Conrad 1860 clam
Crenella serica Conrad
 Mytilida - Mytilidae
Lithophaga sp. Röding 1798 mussel
Lithophaga sp.
 Arcida - Parallelodontidae
Nemodon eufaulensis clam
Nemodon eufaulensis (Gabb) [entered as Nemodon eufaulensis]
 Pectinida - Anomiidae
Anomia (Anomia) argentaria Morton 1833 jingle
Anomia (Anomia) argentaria Morton
 Pectinida - Limidae
"Lima (Lima) reticulata" = Pseudolimea reticulata
"Lima (Lima) reticulata" = Pseudolimea reticulata Forbes 1845 file clam
Lima (Lima) reticulata Lyell & For
 Pectinida - Entoliidae
Syncyclonema simplicius scallop
Syncylonema simplicus (Conrad) - originally entered as "Syncylonema simplicius"
 Ostreida - Flemingostreidae
Cubitostrea tecticosta Gabb 1860 oyster
Cubitostrea tecticosta (Gabb)
 Ostreida - Gryphaeidae
Pycnodonte vesicularis Lamarck 1806 oyster
Pycnodonte vesicularis Lamarck
"Exogyra costata" = Exogyra (Exogyra) costata Say 1820 oyster
Exogyra costata Say
Gryphaeostrea vomer Morton 1828 oyster
Gryphaeostrea vomer Morton
Polychaeta
 Serpulimorpha -
Hamulus onyx Morton 1834
Hamulus onyx Morton
Sedentaria
 Sabellida - Serpulidae
Serpula sp. Linnaeus 1758
Serpula sp.
Echinoidea
  -
Echinoidea indet. Leske 1778 sea urchin
Echinoid sp. - originally entered as "Echinoidea sp."