Sohl and Koch OFR # 650 (Cretaceous of the United States)

Also known as McLeod School; USGS # 14139

Where: Navarro County, Texas (31.8° N, 96.5° W: paleocoordinates 37.0° N, 74.9° W)

• small collection-level geographic resolution

When: Discoscaphites conradi ammonoid zone, Corsicana Marl Formation, Late/Upper Maastrichtian (70.6 - 66.0 Ma)

• Haustator bilira assemblage zone

• member-level stratigraphic resolution

Environment/lithology: marine; gray claystone

Size class: mesofossils

Preservation: original aragonite, original calcite

Reposited in the USGS

• Stephenson collection

Primary reference: N. F. Sohl and C. F. Koch. 1984. Upper Cretaceous (Maestrichtian) larger invertebrate Fossils from the Haustator bilira Assemblage Zone in the west gulf Coastal Plain. USGS Open File Report 84-687:1-282 [M. Kosnik/M. Kosnik]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 4431: authorized by Matt Kosnik, entered by Matt Kosnik on 14.08.1999, edited by Uta Merkel

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Lithophagidae indet.
Lithophagid borings
Polychaeta
 Sabellida - Serpulidae
Serpula sp. Linnaeus 1758
Serpula sp.
Bivalvia
 Arcida - Arcidae
Striarca webbervillensis clam
Striarca webbervillensis (Stephens
 Ostreida - Gryphaeidae
"Exogyra costata" = Exogyra (Exogyra) costata
"Exogyra costata" = Exogyra (Exogyra) costata Say 1971 oyster
Exogyra costata Say
 Mytilida - Mytilidae
Crenella serica Conrad 1860 mussel
Crenella serica Conrad
 Carditida - Crassatellidae
Crassatella vadosa Morton 1834 clam
Crassatella vadosa vadosa Morton
 Carditida - Carditidae
Vetericardiella webbervillensis clam
Vetericardiella webbervillensis (S
 Pholadida - Corbulidae
Corbula sp. Bruguière 1789 clam
Corbula sp.
 Cardiida - Arcticidae
Veniella conradi Morton 1833 clam
Veniella conradi (Morton)
 Cardiida - Cardiidae
Trachycardium sp. Mörch 1853 cockle
Trachycardium sp.
 Nuculida - Nuculidae
Nucula percrassa nut clam
Nucula percrassa Conrad
 Protobranchia -
"Perissonata sp." = Perrisonota
"Perissonata sp." = Perrisonota Conrad 1869 clam
Perrisonota sp.
 Protobranchia - Nuculanidae
Nuculana sp. Link 1807 pointed nut clam
Nuculana sp.
Gastropoda
 Patellogastropoda - Lottiidae
Acmaea occidentalis limpet
Acmaea occidentalis (Hall & Meek)
 Neogastropoda - Buccinidae
Hydrotribulus asper true whelk
Hydeotribulus asper Stephenson - originally entered as "Hydeotribulus asper"
 Sorbeoconcha - Turritellidae
Turritella vertebroides Morton 1834 turret shell
Turritella vertebroides Morton
 Tectibranchia - Scaphandridae
Ellipsoscapha sp. Stephenson 1941 snail
Ellipsoscapha sp.
 Architectonicoidea - Architectonicidae
? Pseudomalaxis sp. Fischer 1850 snail
Pseudomalaxis ? sp. - originally entered as "Pseudomalaxis ? sp."
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium leve tusk shell
Dentalium leve Stephenson
Cephalopoda
 Ammonitida - Sphenodiscidae
Sphenodiscus sp. Meek 1871 ammonite
Sphenodiscus sp.
Sphenodiscus tirensis ammonite
Sphenodiscus tirensis Stephenson
Sphenodiscus pleurisepta Conrad 1857 ammonite
Sphenodiscus pleurisepta (Conrad)
 Ammonitida - Scaphitidae
Discoscaphites conradi Morton 1834 ammonite
Discoscaphites conradi (Morton) va
 Ammonitida - Baculitidae
Baculites sp. Lamarck 1799 ammonite
Baculites sp.
unclassified
  -
Vertebrata indet. Lamarck 1801
Otolith
Demospongea
 Clavulina - Clionaidae
Cliona sp. demosponge
Clione sp.
Anthozoa
 Scleractinia - Micrabaciidae
Micrabacia sp. Milne-Edwards 1849 stony coral
Micrabacia spp.
 Scleractinia - Caryophylliidae
Trochocyathus gardnerae Wells 1933 stony coral