Sohl and Koch OFR # 422 (Cretaceous of the United States)

Also known as Brightseat; USGS # 32773

Where: Prince Georges County, Maryland (38.9° N, 76.9° W: paleocoordinates 39.7° N, 52.8° W)

• small collection-level geographic resolution

When: Discoscaphites conradi ammonoid zone, uppermost Member (Severn Formation), Late/Upper Maastrichtian (70.6 - 66.0 Ma)

• Haustator bilira assemblage zone

• member-level stratigraphic resolution

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

Size class: macrofossils

Preservation: original aragonite, 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 4372: authorized by Matt Kosnik, entered by Matt Kosnik on 14.08.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Lithophagidae indet.
Lithophagid borings
Anthozoa
 Scleractinia - Micrabaciidae
Micrabacia sp. Milne-Edwards 1849 stony coral
Micrabacia spp.
unclassified
  -
Vertebrata indet. Lamarck 1801
Shark parts
Polychaeta
 Serpulimorpha -
Hamulus squamosus
Hamulus squamosus Gabb
Hamulus onyx Morton 1834
Hamulus onyx Morton
Cephalopoda
 Ammonitida - Scaphitidae
Discoscaphites conradi Morton 1834 ammonite
Discoscaphites conradi (Morton) va
 Ammonitida - Sphenodiscidae
Sphenodiscus sp. Meek 1871 ammonite
Sphenodiscus sp.
 Nautilida - Nautilidae
Eutrephoceras dekayi Morton 1834
Eutrephoceras dekayi (Morton)
Bivalvia
 Nuculida - Nuculidae
"Nucula cuneifrons" = Nucula cunifrons Conrad 1860 nut clam
Nucula cunifrons Conrad
Nucula percrassa nut clam
Nucula percrassa Conrad
Nucula amica Gardner 1916 nut clam
Nucula amica Gardner
 Nuculanida - Malletiidae
"Perissonata protexta" = Perrisonota
"Perissonata protexta" = Perrisonota clam
Perissonata protexta (Conrad) non G
 Nuculanida - Nuculanidae
Nuculana whitfieldi, "Nuculana rostrotruncata" = Nuculana rostratruncata
Nuculana whitfieldi pointed nut clam
Nuculana whitfieldi (Gardner)
"Nuculana rostrotruncata" = Nuculana rostratruncata Gardner 1916 pointed nut clam
Nuculana rostrotruncata (Gardner)
 Mytilida - Crenellidae
Crenella serica Conrad 1860 clam
Crenella serica Conrad
Crenella elegantula Meek and Hayden 1862 clam
Crenella elegantula Meek & Hayden
 Mytilida - Mytilidae
Lycettia tippanus mussel
Lycettia tippanus (Conrad)
 Pectinida - Anomiidae
Anomia (Anomia) argentaria Morton 1833 jingle
Anomia (Anomia) argentaria Morton
Anomia (Anomia) ornata Gabb 1876 jingle
Anomia (Anomia) ornata Gabb
 Pectinida - Entoliidae
Syncyclonema simplicius scallop
Syncylonema simplicus (Conrad) - originally entered as "Syncylonema simplicius"
 Pectinida - Pectinoidae
Camptonectes (Camptonectes) sp. Meek 1864 scallop
Camptonectes (Comptonectes) sp.
 Ostreida - Pteriidae
Phelopteria linguiformis pearl oyster
Phelopteria linguiformis (Evans & Shu
 Ostreida - Gryphaeidae
Exogyra sp. Say 1820 oyster
Exogyra sp.
 Ostreida - Ostreidae
Arctostrea falacata oyster
Arctostrea falacata (Gabb)
 Ostreida - Flemingostreidae
Cubitostrea tecticosta Gabb 1860 oyster
Cubitostrea tecticosta (Gabb)
 Arcida - Parallelodontidae
Nemodon eufaulensis clam
Nemodon eufaulensis (Gabb) [entered as Nemodon eufaulensis]
 Arcida - Cucullaeidae
"Cucullaea (Idonearca) capax" = Idonearca capax
"Cucullaea (Idonearca) capax" = Idonearca capax Conrad 1858 clam
Cucullaea (Idonearca) capax Conrad
 Arcida - Glycymerididae
Postligata wordeni clam
Postligata wordeni Gardner
 Arcida - Arcidae
Striarca sp. Conrad 1862 clam
Striarca sp.
 Lucinida - Lucinidae
Myrtea stephensoni clam
Myrtea stephensoni Gardner
 Pandorida - Laternulidae
Laternula ? robusta clam
Laternula ? robusta Stephenson - originally entered as "Laternula ? robusta"
 Poromyida - Poromyidae
Liopistha protexta Conrad 1853 clam
Liopistha protexta Conrad
 Solenida - Pharidae
Leptosolen biplicata Conrad 1858 clam
Leptosolen biplicata (Conrad)
 Pholadida - Corbulidae
Caestocorbula (Parmicorbula) percompressa clam
Caesticorbula (Parmicorbula) perco - originally entered as "Caesticorbula percompressa"
Caestocorbula (Caesticorbula) crassaplica Vincent 1910 clam
Caesticorbula (Caesticorbula) cras - originally entered as "Caesticorbula crassaplica"
 Pholadida - Pholadidae
Clavipholas pectorosa clam
Claripholas pectorosa (Conrad)
 Cardiida - Tellinidae
Tellinimera gabbi tellin clam
Tellinimeria gabbi Gardner - originally entered as "Tellinimeria gabbi"
Aenona eufaulensis Conrad 1860 tellin clam
Aenona eufaulensis (Conrad)
Solyma gardnerae tellin clam
Solyma gardnerae Stephenson
"Linearia metastriata" = Linearis tellin clam
Linearia metastriata Conrad
Tellina sp. Linnaeus 1758 tellin clam
Tellina sp.
 Cardiida - Cardiidae
Trachycardium eufaulensis Conrad 1860 cockle
Trachycardium eufaulensis (Conrad)
Granocardium (Granocardium) kummeli cockle
Granocardium (Granocardium) kummel
 Cardiida - Arcticidae
Tenea parilis clam
Tenea parilis Conrad
Etea sp. Conrad 1873 clam
Etea sp.
 Cardiida - Mactridae
Cymbophora berryi clam
Cymbophora berryi (Gardner)
Cymbophora wordeni clam
Cymbophora wordeni (Gardner)
 Cardiida - Veneridae
Cyclorisma parva venus clam
Cyclorisma parva (Gardner)
Legumen ellipticum venus clam
Legumen ellipticum Conrad
Cyprimeria alta venus clam
Cyprimeria alta Conrad
Cyprimeria depressa venus clam
Cyprimeria depressa Conrad
 Cardiida - Glossidae
Glossus sp. Poli 1795 clam
Glossus sp.
 Carditida - Carditidae
Vetericardiella crenalirata clam
Vetericardiella crenalirata (Conra
 Carditida - Crassatellidae
Crassatella vadosa Morton 1834 clam
Crassatella vadosa vadosa Morton
 Trigoniida - Megatrigonioidae
Pterotrigonia (Scabrotrigonia) eufaulensis Gabb 1860 clam
Pterotrigonia (Scabrotrigonia) euf
Gastropoda
 Heterostropha - Mathildidae
Mathilda cf. cedarensis Stephenson 1941 snail
Mathilda cf. M. cedarensis Stephen - originally entered as "Mathilda cf. cedarensis"
 Heterostropha - Gordenellidae
Promathilda (Clathrobaculus) cf. parvula Sohl 1960 snail
Promathilda (Clathrobaculus) cf. P - originally entered as "Promathilda cf. parvula"
 Heterostropha - Acteonidae
"Actaeon sp." = Acteon
"Actaeon sp." = Acteon Montfort 1810 snail
Acteon sp. - originally entered as "Acteon sp."
 Heterostropha - Ringiculidae
"Ringicula (Ringiculella) clarki" = Ringicula (Ringiculina) clarki
"Ringicula (Ringiculella) clarki" = Ringicula (Ringiculina) clarki Durham 1944 snail
Ringicula (Ringiculella) clarki Ga
 Heterostropha - Architectonicidae
Pseudomalaxis pateriformis Stephenson 1955 snail
Pseudomalaxis pateriformis Stephen
 Opisthobranchia - Scaphandridae
Ellipsoscapha cylindrica Gardner 1916 snail
Ellipsoscapha cylindrica (Gardner)
 Epitonioidea - Epitoniidae
Acirsa (Hemiacirsa) aff. americana Wade 1926 wentletrap
Acirsa (Hemiacirsa) aff. A americ - originally entered as "Acirsa aff. americana"
Striaticostatum sp. Sohl 1963 wentletrap
Striaticostatum sp.
Belliscala sp. Stephenson 1941 wentletrap
Belliscala sp.
 Cerithioidea - Turritellidae
"Turritella (Sohlitella) trilira" = Turritella trilira, "Turritella (Sohlitella) bilira" = Haustator bilira
"Turritella (Sohlitella) trilira" = Turritella trilira Conrad 1860 turret shell
Turritella (Sohlitella) trilira (C
"Turritella (Sohlitella) bilira" = Haustator bilira Stephenson 1941 turret shell
Turritella (Sohlitella) bilira (St
 Cerithioidea - Pickworthiidae
Urceolabrum tuberculatum snail
Urceolabrum turberculatum callistu
 Neogastropoda - Moreidae
Hercorhynchus (Haplovoluta) trililatus snail
Hercorhyncus (Haplovoluta) trilila - originally entered as "Hercorhyncus trililatus"
 Neogastropoda - Turbinellidae
Napulus sp. Stephenson 1941 snail
Napulus sp.
 Neogastropoda - Fasciolariidae
Remera flexicostata Sohl 1964 snail
Remera flexicostata Sohl
Drilluta sp. Wade 1916 snail
Drilluta sp.
Bellifusus sp. Stephenson 1941 snail
Bellifusus sp.
Hercorhynchus (Hercorhyncus) pagodaformis Sohl 1964 snail
Hercorhyncus (Hercorhyncus) pagoda - originally entered as "Hercorhyncus pagodaformis"
Rhombopsis sp. Gardner 1916 snail
Rhombopsis sp.
 Neogastropoda - Paladmetidae
Paladmete laevis Sohl 1964 snail
Paladmete laevis Sohl
Paladmete cancellaria Conrad 1858 snail
Paladmete cancellaria (Conrad)
 Neogastropoda - Cancellariidae
Caveola acuta Wade 1926 snail
Caveola acuta speciosa Sohl
 Neogastropoda - Turridae
Remnita anomalocostata Wade 1926 turrid
Remnita anomalocostata (Wade)
Remnita hastata Sohl 1964 turrid
Remnita hastata Sohl
Beretra ripleyana Conrad 1858 turrid
Beretra ripleyana (Conrad)
 Neogastropoda - Olividae
"Ancilla (Ancillus) acutula" = Ancillus acutula
"Ancilla (Ancillus) acutula" = Ancillus acutula Stephenson 1941 olive snail
Ancilla (Ancillus) acutula (Stephe
 Neogastropoda - Muricidae
Sargana stantoni Weller 1907 murex snail
Sargana stantoni (Weller)
 Neogastropoda - Volutidae
Liopeplum cretaceum Conrad 1858 volute
Liopeplum cretaceum (Conrad)
 Neogastropoda - Pholidotomidae
Morea marylandica Gardner 1916 snail
Morea marylandica Gardner
 Neogastropoda - Pyropsidae
Pyropsis sp. Conrad 1860 snail
Pyropsis spp.
 Sorbeoconcha - Aporrhaidae
Pterocerella tippana, "Arrhoges (Latiala) cf. lobata" = Latiala lobata
Pterocerella tippana snail
Pterocerella tippana (Conrad)
"Arrhoges (Latiala) cf. lobata" = Latiala lobata Wade 1926 snail
Arrhoges (Latiala) cf. A. Lobata ( - originally entered as "Arrhoges cf. lobata"
 Sorbeoconcha - Naticidae
Polinices kummeli Sohl 1960 moon snail
Polinices kummeli Sohl
Euspira rectilabrum Conrad 1858 moon snail
Euspira rectilabrum (Conrad)
"Gyrodes spillmani" = Gyrodes (Sohlella) spillmani Gabb 1861 moon snail
Gyrodes spillmani Gabb
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium leve Stephenson 1923 tusk shell
Dentalium leve Stephenson
 Gadilida - Gadilidae
Cadulus obnutus tusk shell
Cadulus obnutus (Conrad)
Bryozoa
  -
Bryozoa indet. Ehrenberg 1831
Bryozoa (branching)
Mesostoma
  -
Mesostoma sp. Ehrenberg 1837
Mesostoma sp.