Sohl and Koch OFR # 419 (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, 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 sandstone

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 4369: authorized by Matt Kosnik, entered by Matt Kosnik on 14.08.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Anthozoa
 Scleractinia - Micrabaciidae
Micrabacia sp. Milne-Edwards 1849 stony coral
Micrabacia spp.
unclassified
  -
Vertebrata indet. Lamarck 1801
Otolith
Gastropoda
 Sorbeoconcha - Acteoninidae
Eoacteon linteus Conrad 1858 snail
Ecoacteon linteus (Conrad) - originally entered as "Ecoacteon linteus"
 Sorbeoconcha - Naticidae
Euspira rectilabrum Conrad 1858 moon snail
Euspira rectilabrum (Conrad)
Gyrodes americanus moon snail
Gyrodes americanus Wade
Gyrodes supraplicatus Conrad 1858 moon snail
Gyrodes supraplicatus (Conrad)
"Gyrodes spillmani" = Gyrodes (Sohlella) spillmani Gabb 1861 moon snail
Gyrodes spillmani Gabb
 Neogastropoda - Olividae
"Ancilla (Ancillus) acutula" = Ancillus acutula
"Ancilla (Ancillus) acutula" = Ancillus acutula Stephenson 1941 olive snail
Ancilla (Ancillus) acutula (Stephe
 Neogastropoda - Melongenidae
Deussenia bellalirata Conrad 1858 snail
Deussenia bellalirata (Conrad)
? Serrifusus sp. n. sp. Meek 1876 snail
Serrifusus ? n. sp. - originally entered as "Serrifusus ? n. sp."
Pyrifusus crassus Sohl 1964 snail
Pyrifusus crassus Sohl
Pyrifusus subdensatus Conrad 1858 snail
Pyrifusus subdensatus Conrad
 Neogastropoda - Fasciolariidae
Bellifusus curvicostatus Wade 1926 snail
Bellifusus curvicostatus (Wade)
Drilluta marylandicus snail
Drilluta marylandicus (Gardner)
Drilluta buboanus Sohl 1964 snail
Drilluta buboanus Sohl
Hercorhynchus (Hercorhyncus) pagodaformis Sohl 1964 snail
Hercorhyncus (Hercorhyncus) pagoda - originally entered as "Hercorhyncus pagodaformis"
Hercorhynchus (Hercorhyncus) tippanus Conrad 1860 snail
Hercorhyncus (Hercorhyncus) tippan - originally entered as "Hercorhyncus tippanus"
Graphidula sp. Stephenson 1941 snail
Graphidula sp.
Graphidula terebriformis Stephenson 1941 snail
Graphidula terebriformis Stephenso
Anomalofusus lemniscatus Sohl 1964 snail
Anomalofusus lemniscatus Sohl
Remera cf. cretacea snail
Remera cf. R. cretacea Gardner - originally entered as "Remera cf. cretacea"
Remera sp. Stephenson 1941 snail
Remera sp.
Remera flexicostata Sohl 1964 snail
Remera flexicostata Sohl
 Neogastropoda - Buccinidae
"Stantonella interupta" = Stantonella interrupta Conrad 1858 true whelk
Stantonella interupta (Conrad)
Odontobasis cf. sulcata Sohl 1964 true whelk
Odantobasis cf. O. sulcata - originally entered as "Odantobasis cf. sulcata"
Hydrotribulus asper true whelk
Hydeotribulus asper Stephenson - originally entered as "Hydeotribulus asper"
 Neogastropoda - Pyropsidae
Pyropsis sp. Conrad 1860 snail
Pyropsis spp.
Pyropsis perlata Conrad 1860 snail
Pyropsis perlata Conrad
Pyropsis prolixa Sohl 1964 snail
Pyropsis prolixa Sohl
 Neogastropoda - Cancellariidae
Caveola sp. Stephenson 1941 snail
Caveola sp.
 Neogastropoda - Paladmetidae
Paladmete laevis Sohl 1964 snail
Paladmete laevis Sohl
Paladmete cancellaria Conrad 1858 snail
Paladmete cancellaria (Conrad)
 Neogastropoda - Muricidae
"Lowenstamia cucullata" = Sohliina cucullata
"Lowenstamia cucullata" = Sohliina cucullata Sohl 1964 murex snail
Lowenstamia cucullata Sohl
 Neogastropoda - Volutidae
Volutidae indet. Rafinesque 1815 volute
Volutid snail
Myobarbum ? monmouthensis volute
Myobarbum ? monmouthensis (Gardner - originally entered as "Myobarbum ? monmouthensis"
Liopeplum cretaceum Conrad 1858 volute
Liopeplum cretaceum (Conrad)
Liopeplum canalis Conrad 1858 volute
Liopeplum canalis (Conrad)
 Neogastropoda - Coralliophilidae
Latiaxis sp. Swainson 1840 snail
Latiaxis sp.
 Neogastropoda -
Fulgerca aff. attenuata Wade 1926 snail
Fulgerca aff. A. attenuata (Wade) - originally entered as "Fulgerca aff. attenuata"
 Neogastropoda - Pholidotomidae
Morea marylandica Gardner 1916 snail
Morea marylandica Gardner
Morea cancellaria Conrad 1860 snail
Morea cancellaria Conrad
 Neogastropoda - Turbinellidae
Napulus sp. n. sp. Stephenson 1941 snail
Napulus n. sp. (MD) - originally entered as "Napulus n. sp."
Napulus octoliratus Conrad 1858 snail
Napulus octoliratus Conrad
 Neogastropoda - Turridae
Amuletum cf. fasciolatum Wade 1926 turrid
Amuletum cf. A. fasciolatum (Wade) - originally entered as "Amuletum cf. fasciolatum"
Amuletum (Amuletum) dumasensis Sohl 1964 turrid
Amuletum (Amuletum) dumasensis Soh
Remnita cf. biacuminata Wade 1926 turrid
Remnita cf. R. biacuminata (Wade) - originally entered as "Remnita cf. biacuminata"
Beretra cf. gracilis Wade 1926 turrid
Beretra cf. B. gracilis - originally entered as "Beretra cf. gracilis"
Fusimilis tippanus Conrad 1858 turrid
Fusimilis tippanus (Conrad)
 Neogastropoda - Moreidae
Hercorhynchus (Haplovoluta) trililatus snail
Hercorhyncus (Haplovoluta) trilila - originally entered as "Hercorhyncus trililatus"
 Sorbeoconcha - Ranellidae
Trachytriton sp. n. sp. Meek 1864 triton shell
Trachyritan n. sp. - originally entered as "Trachytriton n. sp."
 Sorbeoconcha - Aporrhaidae
Aporrhaidae indet. Gray 1850 snail
Aporrhaid sp.
Pugnellus (Pugnellus) densatus snail
Pugnellus (Pugnellus) densatus Con
Pterocerella tippana snail
Pterocerella tippana (Conrad)
 Vanikoroidea - Eulimidae
Eulima monmouthensis snail
Eulima monmouthensis (Gardner)
Eulima clara Wade 1926 snail
Eulima ? clara Wade
 Neotaenioglossa -
Anteglossia sp. Vokes 1948 snail
Anteglosia sp. - originally entered as "Anteglosia sp."
 Epitonioidea - Epitoniidae
Belliscala sp. Stephenson 1941 wentletrap
Belliscala sp.
Striaticostatum sparsum Sohl 1964 wentletrap
Striaticostatum sparsum Sohl
Acirsa (Plesioacirsa) sp. de Boury 1909 wentletrap
Acirsa (Plesioacirsa) sp.
 Cerithioidea - Pickworthiidae
Urceolabrum tuberculatum snail
Urceolabrum turberculatum callistu
 Cerithioidea - Cerithiidae
Cerithium aff. weeksi Wade 1926 cerith snail
Cerithium aff. Certhium weeksi Wa - originally entered as "Cerithium aff. weeksi"
 Cerithioidea - Turritellidae
"Turritella (Sohlitella) bilira" = Haustator bilira, Turritella hilgardi, Turritella paravertebroides, "Turritella (Sohlitella) trilira" = Turritella trilira
"Turritella (Sohlitella) bilira" = Haustator bilira Stephenson 1941 turret shell
Turritella (Sohlitella) bilira (St
Turritella hilgardi turret shell
Turritella hilgardi Sohl
Turritella paravertebroides turret shell
Turritella paravertebroides Gardne
"Turritella (Sohlitella) trilira" = Turritella trilira Conrad 1860 turret shell
Turritella (Sohlitella) trilira (C
 Heterostropha - Acteonidae
"Nonacteonina cf. graphoides" = Nonactaeonina, "Nonacteonina sp. n. sp." = Nonactaeonina, "Actaeon cicatricosus" = Acteon, "Actaeon sp." = Acteon
"Nonacteonina cf. graphoides" = Nonactaeonina snail
Nonacteonina cf. N. graphoides Ste - originally entered as "Nonacteonina cf. graphoides"
"Nonacteonina sp. n. sp." = Nonactaeonina snail
"Nonacteonina n. sp. (slender, subs" - originally entered as "Nonacteonina n. 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, Oligoptycha sp.
"Ringicula (Ringiculella) clarki" = Ringicula (Ringiculina) clarki Durham 1944 snail
Ringicula (Ringiculella) clarki Ga
Oligoptycha sp. Meek 1876 snail
Oligoptycha sp.
 Heterostropha - Architectonicidae
Pseudomalaxis pilsbryi snail
Pseudomalaxis pilsbryi Harbison
 Heterostropha - Pyramidellidae
Creonella cf. subangulata Sohl 1964 snail
Creonella cf. C. subangulata Sohl - originally entered as "Creonella cf. subangulata"
 Heterostropha - Mathildidae
Mathilda (Echinimathilda) corona Sohl 1960 snail
Mathilda (Echinimathilda) corona S
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"
 Opisthobranchiata - Scaphandridae
Ellipsoscapha cf. occidentalis snail
Ellipsoscapha cf. E. occidentalis - originally entered as "Ellipsoscapha cf. occidentalis"
Ellipsoscapha mortoni Forbes 1845 snail
Ellipsoscapha mortoni (Forbes)
 Opisthobranchiata - Cylichnidae
Cylichna incisa Stephenson 1941 snail
Cylichna incisa Stephenson
Cylichna diversilirata Sohl 1964 snail
Cylichna diversilirata Sohl
 Euomphalina - Euomphalidae
Weeksia sp. Stephenson 1941 snail
Weeksia sp. (no spines)
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium sp. Linnaeus 1758 tusk shell
Dentalium sp. (ribbed)
Dentalium leve Stephenson 1923 tusk shell
Dentalium leve Stephenson
 Gadilida - Gadilidae
Cadulus obnutus tusk shell
Cadulus obnutus (Conrad)
Cephalopoda
 Nautilida - Nautilidae
Eutrephoceras dekayi Morton 1834
Eutrephoceras dekayi (Morton)
 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
Bivalvia
 Myida -
Eufistulina sp. Eames 1951 clam
Eufistulana sp. - originally entered as "Eufistulana sp."
 Trigoniida - Megatrigonioidae
Pterotrigonia (Scabrotrigonia) eufaulensis Gabb 1860 clam
Pterotrigonia (Scabrotrigonia) euf
 Carditida - Crassatellidae
Bathytormus pteropsis Conrad 1860 clam
Bathytormus pteropsis (Conrad)
Crassatella vadosa Morton 1834 clam
Crassatella vadosa vadosa Morton
 Lucinida - Lucinidae
"Nymphalucina ? linearea" = Nymphalucina linearia, Myrtea stephensoni
"Nymphalucina ? linearea" = Nymphalucina linearia Stephenson 1941 clam
Nymphalucina ? linearea (Stephenso - originally entered as "Nymphalucina ? linearea"
Myrtea stephensoni clam
Myrtea stephensoni Gardner
 Cardiida - Cardiidae
Granocardium (Granocardium) kummeli cockle
Granocardium (Granocardium) kummel
Granocardium (Granocardium) lowei cockle
Granocardium (Granocardium) lowei
Trachycardium eufaulensis Conrad 1860 cockle
Trachycardium eufaulensis (Conrad)
 Cardiida - Tellinidae
"Tellina ? georgiana" = Sourimis georgiana Gabb 1876 tellin clam
Tellina georgiana Gabb ? - originally entered as "Tellina georgiana ?"
Tellinimera buboana tellin clam
Tellinimeria buboana Stephenson - originally entered as "Tellinimeria buboana"
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
 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 "
Cyprimeria depressa venus clam
Cyprimeria depressa Conrad
 Cardiida - Arcticidae
Veniella conradi Morton 1833 clam
Veniella conradi (Morton)
Tenea parilis clam
Tenea parilis Conrad
Etea cf. carolinensis Conrad 1875 clam
Etea cf. Etea carolinensis Conrad - originally entered as "Etea cf. carolinensis"
 Cardiida - Mactridae
Cymbophora appressa clam
Cymbophora appressa (Gabb)
Cymbophora berryi clam
Cymbophora berryi (Gardner)
Cymbophora wordeni clam
Cymbophora wordeni (Gardner)
 Pholadida - Pholadidae
Opertochasma sp. Stephenson 1953 clam
Opertochasma sp.
Clavipholas pectorosa clam
Claripholas pectorosa (Conrad)
Clavipholas sp. Conrad 1868 clam
Claripholas sp.
 Pholadida - Corbulidae
Corbula monmouthensis Gardner 1916 clam
Corbula monmouthensis Gardner
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"
Corbula subradiata clam
Corbula subradiata Gardner
 Pandorida - Laternulidae
Anatimya anteradiata Conrad 1860 clam
Anatymya anteradiata Conrad - originally entered as "Anatymya anteradiata"
 Poromyida - Cuspidariidae
Cuspidaria (Cuspidaria) ampulla clam
Cuspidaria (Cuspidaria) ampulla Ga
 Poromyida - Poromyidae
Liopistha protexta Conrad 1853 clam
Liopistha protexta Conrad
 Hiatellida - Hiatellidae
Panopea monmouthensis clam
Panopea monmouthensis Gardner
 Solenida - Pharidae
? Leptosolen sp. n. sp. Conrad 1865 clam
Leptosolen ? n. sp. (angular anter - originally entered as "Leptosolen ? n. sp."
Leptosolen biplicata Conrad 1858 clam
Leptosolen biplicata (Conrad)
 Mytilida - Mytilidae
Botula conchafodentis mussel
Botula conchafodentis (Gardner)
Botula lingua mussel
Botula lingua Gardner
Botula ripleyana mussel
Botula ripleyana (Gabb)
Modiolus sedesclaris mussel
Modiolus sedesclaris Gardner
Lycettia tippanus mussel
Lycettia tippanus (Conrad)
 Mytilida - Crenellidae
Crenella elegantula Meek and Hayden 1862 clam
Crenella elegantula Meek & Hayden
Crenella serica Conrad 1860 clam
Crenella serica Conrad
 Ostreida - Pteriidae
Pteria rhombica pearl oyster
Pteria rhombica Gardner
 Ostreida - Pinnidae
Pinna (Pinna) laqueata Conrad 1858 oyster
Pinna (Pinna) laqueata Conrad
 Ostreida - Gryphaeidae
"Exogyra costata" = Exogyra (Exogyra) costata
"Exogyra costata" = Exogyra (Exogyra) costata Say 1820 oyster
Exogyra costata Say
 Ostreida - Flemingostreidae
Cubitostrea tecticosta Gabb 1860 oyster
Cubitostrea tecticosta (Gabb)
 Pectinida - Pectinoidae
Camptonectes sp. n. sp. Meek 1864 scallop
Camptonectes n. sp. (small convex) - originally entered as "Camptonectes n. sp."
Camptonectes (Camptonectes) bubonis Stephenson 1941 scallop
Camptonectes (Camptonectes) bubonis (
 Pectinida - Limidae
"Lima (Lima) acutilineata" = Limatula acutilineata, "Lima (Lima) reticulata" = Pseudolimea reticulata
"Lima (Lima) acutilineata" = Limatula acutilineata Conrad 1858 file clam
Lima (Lima) acutilineata Conrad
"Lima (Lima) reticulata" = Pseudolimea reticulata Forbes 1845 file clam
Lima (Lima) reticulata Lyell & For
 Pectinida - Anomiidae
Anomia (Anomia) ornata Gabb 1876 jingle
Anomia (Anomia) ornata Gabb
Anomia (Anomia) argentaria Morton 1833 jingle
Anomia (Anomia) argentaria Morton
 Pectinida - Entoliidae
Syncyclonema simplicius scallop
Syncylonema simplicus (Conrad) - originally entered as "Syncylonema simplicius"
 Myalinida - Inoceramidae
Inoceramus (Inoceramus) sp. Sowerby 1814 clam
Inoceramus (Inoceramus) sp.
Tenuipteria argenteus clam
Tenuiptereus argenteus (Conrad)
 Arcida - Parallelodontidae
Nemodon eufaulensis clam
Nemodon eufaulensis (Gabb) [entered as Nemodon eufaulensis]
Nemodon stantoni clam
Nemodon stantoni Gardner
 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 saffordi clam
Striarca saffordi (Gardner) non Gab
 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 - Malletiidae
Malletia longfrons, "Perissonata littlei" = Perrisonota, "Perissonata protexta" = Perrisonota
Malletia longfrons clam
Malletia longfrons (Conrad)
"Perissonata littlei" = Perrisonota clam
Perissonata littlei Gardner
"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)
Bryozoa
  -
Bryozoa indet. Ehrenberg 1831
Bryozoa (encrusting)
Bryozoa indet. Ehrenberg 1831
Bryozoa (branching)
Polychaeta
 Serpulimorpha -
Hamulus squamosus
Hamulus squamosus Gabb
Hamulus onyx Morton 1834
Hamulus onyx Morton
Sedentaria
 Sabellida - Serpulidae
Serpula sp. Linnaeus 1758
Serpula sp.