Sohl and Koch OFR # 420 (Cretaceous of the United States)

Also known as Landover Mall; USGS # 32774

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, Severn Formation, Late/Upper Maastrichtian (70.6 - 66.0 Ma)

• Haustator bilira assemblage zone

• formation-level stratigraphic resolution

Environment/lithology: marine; lithified, gray, argillaceous, calcareous 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 4370: authorized by Matt Kosnik, entered by Matt Kosnik on 14.08.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Polychaeta
 Serpulimorpha -
Hamulus squamosus
Hamulus squamosus Gabb
Hamulus onyx Morton 1834
Hamulus onyx Morton
Sedentaria
 Sabellida - Serpulidae
Serpula sp. Linnaeus 1758
Serpula sp.
Cephalopoda
 Ammonitida - Sphenodiscidae
Sphenodiscus sp. Meek 1871 ammonite
Sphenodiscus sp.
 Ammonitida - Scaphitidae
Discoscaphites conradi Morton 1834 ammonite
Discoscaphites conradi (Morton) va
Discoscaphites iris Conrad 1858 ammonite
Discoscaphites iris Conrad
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium leve Stephenson 1923 tusk shell
Dentalium leve Stephenson
Bivalvia
 Lucinida - Lucinidae
"Nymphalucina ? linearea" = Nymphalucina linearia
"Nymphalucina ? linearea" = Nymphalucina linearia Stephenson 1941 clam
Nymphalucina ? linearea (Stephenso - originally entered as "Nymphalucina ? linearea"
 Poromyida - Poromyidae
Liopistha protexta Conrad 1853 clam
Liopistha protexta Conrad
 Pholadida - Pholadidae
Pholas sp. Linnaeus 1758 clam
Pholas sp.
 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"
 Cardiida - Cardiidae
Trachycardium eufaulensis Conrad 1860 cockle
Trachycardium eufaulensis (Conrad)
Granocardium (Granocardium) kummeli cockle
Granocardium (Granocardium) kummel
Granocardium (Granocardium) lowei cockle
Granocardium (Granocardium) lowei
 Cardiida - Tellinidae
"Linearia metastriata" = Linearis tellin clam
Linearia metastriata Conrad
Aenona eufaulensis Conrad 1860 tellin clam
Aenona eufaulensis (Conrad)
Tellinimera buboana tellin clam
Tellinimeria buboana Stephenson - originally entered as "Tellinimeria buboana"
Tellinimera gabbi tellin clam
Tellinimeria gabbi Gardner - originally entered as "Tellinimeria gabbi"
 Cardiida - Arcticidae
Veniella conradi Morton 1833 clam
Veniella conradi (Morton)
Tenea parilis clam
Tenea parilis Conrad
 Cardiida - Veneridae
Cyclorisma parva venus clam
Cyclorisma parva (Gardner)
Legumen ellipticum venus clam
Legumen ellipticum Conrad
Cyprimeria sp. Conrad 1864 venus clam
originally entered as "Cyprimeria "
 Cardiida - Mactridae
Cymbophora appressa clam
Cymbophora appressa (Gabb)
Cymbophora berryi clam
Cymbophora berryi (Gardner)
Cymbophora wordeni clam
Cymbophora wordeni (Gardner)
 Hiatellida - Hiatellidae
Panopea monmouthensis clam
Panopea monmouthensis Gardner
 Solenida - Pharidae
Leptosolen biplicata Conrad 1858 clam
Leptosolen biplicata (Conrad)
 Carditida - Crassatellidae
Crassatella vadosa Morton 1834 clam
Crassatella vadosa vadosa Morton
 Trigoniida - Megatrigonioidae
Pterotrigonia (Scabrotrigonia) eufaulensis Gabb 1860 clam
Pterotrigonia (Scabrotrigonia) euf
 Mytilida - Crenellidae
Crenella elegantula Meek and Hayden 1862 clam
Crenella elegantula Meek & Hayden
Crenella serica Conrad 1860 clam
Crenella serica Conrad
 Mytilida - Mytilidae
Modiolus sedesclaris mussel
Modiolus sedesclaris Gardner
Lycettia tippanus mussel
Lycettia tippanus (Conrad)
Botula conchafodentis mussel
Botula conchafodentis (Gardner)
Botula lingua mussel
Botula lingua Gardner
 Pectinida - Pectinoidae
Camptonectes (Camptonectes) bubonis Stephenson 1941 scallop
Camptonectes (Camptonectes) bubonis (
 Pectinida - Entoliidae
Syncyclonema simplicius scallop
Syncylonema simplicus (Conrad) - originally entered as "Syncylonema simplicius"
 Pectinida - Anomiidae
Anomia (Anomia) argentaria Morton 1833 jingle
Anomia (Anomia) argentaria Morton
Anomia (Anomia) ornata Gabb 1876 jingle
Anomia (Anomia) ornata Gabb
 Ostreida - Flemingostreidae
Cubitostrea tecticosta Gabb 1860 oyster
Cubitostrea tecticosta (Gabb)
 Ostreida - Gryphaeidae
"Exogyra costata" = Exogyra (Exogyra) costata
"Exogyra costata" = Exogyra (Exogyra) costata Say 1820 oyster
Exogyra costata Say
 Arcida - Parallelodontidae
Nemodon eufaulensis clam
Nemodon eufaulensis (Gabb) [entered as Nemodon eufaulensis]
 Arcida - Arcidae
Striarca saffordi clam
Striarca saffordi (Gardner) non Gab
 Arcida - Glycymerididae
Postligata wordeni clam
Postligata wordeni Gardner
 Nuculida - Nuculidae
Nucula percrassa nut clam
Nucula percrassa Conrad
Nucula amica Gardner 1916 nut clam
Nucula amica Gardner
"Nucula cuneifrons" = Nucula cunifrons Conrad 1860 nut clam
Nucula cunifrons Conrad
 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)
 Nuculanida - Malletiidae
Malletia longfrons, "Perissonata littlei" = Perrisonota
Malletia longfrons clam
Malletia longfrons (Conrad)
"Perissonata littlei" = Perrisonota clam
Perissonata littlei Gardner
Gastropoda
 Sorbeoconcha - Aporrhaidae
Aporrhaidae indet. Gray 1850 snail
"Aporrhaid n. gen., n. sp. (MD)"
 Neogastropoda - Pholidotomidae
Morea marylandica Gardner 1916 snail
Morea marylandica Gardner
Morea cancellaria Conrad 1860 snail
Morea cancellaria Conrad
 Neogastropoda - Coralliophilidae
Latiaxis sp. Swainson 1840 snail
Latiaxis sp.
 Neogastropoda - Muricidae
"Lowenstamia cucullata" = Sohliina cucullata
"Lowenstamia cucullata" = Sohliina cucullata Sohl 1964 murex snail
Lowenstamia cucullata Sohl
 Neogastropoda - Volutidae
Liopeplum canalis Conrad 1858 volute
Liopeplum canalis (Conrad)
 Neogastropoda - Pyropsidae
Pyropsis sp. Conrad 1860 snail
Pyropsis spp.
 Neogastropoda - Moreidae
Hercorhynchus (Hercorhyncus) sp. snail
Hercorhyncus (Hercorhyncus) sp. - originally entered as "Hercorhyncus sp."
 Neogastropoda - Melongenidae
Pyrifusus subdensatus Conrad 1858 snail
Pyrifusus subdensatus Conrad
Pyrifusus crassus Sohl 1964 snail
Pyrifusus crassus Sohl
 Neogastropoda - Fasciolariidae
Hercorhynchus (Hercorhyncus) pagodaformis Sohl 1964 snail
Hercorhyncus (Hercorhyncus) pagoda - originally entered as "Hercorhyncus pagodaformis"
Remera sp. Stephenson 1941 snail
Remera sp.
Remera flexicostata Sohl 1964 snail
Remera flexicostata Sohl
Anomalofusus lemniscatus Sohl 1964 snail
Anomalofusus lemniscatus Sohl
 Neogastropoda - Paladmetidae
Paladmete laevis Sohl 1964 snail
Paladmete laevis Sohl
Paladmete cancellaria Conrad 1858 snail
Paladmete cancellaria (Conrad)
 Neogastropoda - Turridae
"Fusimilis ripleanus" = Beretra ripleyana, Amuletum sp.
"Fusimilis ripleanus" = Beretra ripleyana Conrad 1858 turrid
Fusimilis ripleanus (Conrad)
Amuletum sp. Stephenson 1941 turrid
Amuletum sp.
 Sorbeoconcha - Naticidae
"Gyrodes spillmani" = Gyrodes (Sohlella) spillmani Gabb 1861 moon snail
Gyrodes spillmani Gabb
Gyrodes supraplicatus Conrad 1858 moon snail
Gyrodes supraplicatus (Conrad)
Euspira rectilabrum Conrad 1858 moon snail
Euspira rectilabrum (Conrad)
 Cerithioidea - Pickworthiidae
Urceolabrum tuberculatum snail
Urceolabrum turberculatum callistu
 Cerithioidea - Turritellidae
"Turritella (Sohlitella) bilira" = Haustator bilira, Turritella paravertebroides, "Turritella (Sohlitella) trilira" = Turritella trilira
"Turritella (Sohlitella) bilira" = Haustator bilira Stephenson 1941 turret shell
Turritella (Sohlitella) bilira (St
Turritella paravertebroides turret shell
Turritella paravertebroides Gardne
"Turritella (Sohlitella) trilira" = Turritella trilira Conrad 1860 turret shell
Turritella (Sohlitella) trilira (C
 Opisthobranchia - Cylichnidae
Cylichna incisa Stephenson 1941 snail
Cylichna incisa Stephenson
Cylichna diversilirata Sohl 1964 snail
Cylichna diversilirata Sohl
 Heterostropha - Architectonicidae
Pseudomalaxis pilsbryi snail
Pseudomalaxis pilsbryi Harbison
 Heterostropha - Acteonidae
"Nonacteonina sp." = Nonactaeonina, "Actaeon cicatricosus" = Acteon, "Actaeon sp." = Acteon
"Nonacteonina sp." = Nonactaeonina snail
Nonacteonina sp.
"Actaeon cicatricosus" = Acteon snail
Acteon cicatricosus Sohl - originally entered as "Acteon cicatricosus"
"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 - Pyramidellidae
Creonella cf. subangulata Sohl 1964 snail
Creonella cf. C. subangulata Sohl - originally entered as "Creonella cf. subangulata"
 Heterostropha - Gordenellidae
Promathilda (Clathrobaculus) cf. parvula Sohl 1960 snail
Promathilda (Clathrobaculus) cf. P - originally entered as "Promathilda cf. parvula"
unclassified
  -
Vertebrata indet. Lamarck 1801
Otolith
Anthozoa
 Scleractinia - Micrabaciidae
Micrabacia sp. Milne-Edwards 1849 stony coral
Micrabacia spp.