Sohl and Koch OFR # 422: Late/Upper Maastrichtian, Maryland

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Lithophagidae indet.
Lithophagid borings
Vertebrata indet. Lamarck 1801
Shark parts
Polychaeta - Serpulimorpha
Hamulus squamosus
Hamulus squamosus Gabb
Hamulus onyx Morton 1834
Hamulus onyx Morton
Scaphopoda - Gadilida - Gadilidae
Cadulus obnutus
1 specimen
Cadulus obnutus (Conrad)
Scaphopoda - Dentaliida - Dentaliidae
Dentalium leve Stephenson 1923
56 specimens
Dentalium leve Stephenson
Cephalopoda - Ammonitida - Sphenodiscidae
Sphenodiscus sp. Meek 1871
16 specimens
Sphenodiscus sp.
Cephalopoda - Ammonitida - Scaphitidae
Discoscaphites conradi (Morton 1834)
9 specimens
Discoscaphites conradi (Morton) va
Cephalopoda - Nautilida - Nautilidae
Eutrephoceras dekayi (Morton 1834)
4 specimens
Eutrephoceras dekayi (Morton)
Gastropoda - Epitoniidae
Striaticostatum sp. Sohl 1963
1 specimen
Striaticostatum sp.
Belliscala sp. Stephenson 1941
2 specimens
Belliscala sp.
Acirsa (Hemiacirsa) aff. americana (Wade 1926)
1 specimen
Acirsa (Hemiacirsa) aff. A americ - originally entered as "Acirsa aff. americana"
Gastropoda - Pickworthiidae
Urceolabrum tuberculatum
14 specimens
Urceolabrum turberculatum callistu
Gastropoda - Turritellidae
Turritella (Sohlitella) trilira (Conrad 1860)
12 specimens
original and current combination Turritella trilira
Turritella (Sohlitella) trilira (C
Turritella (Sohlitella) bilira (Stephenson 1941)
10 specimens
recombined as Haustator bilira
Turritella (Sohlitella) bilira (St
Gastropoda - Naticidae
Gyrodes spillmani Gabb 1861
2 specimens
recombined as Gyrodes (Sohlella) spillmani
Gyrodes spillmani Gabb
Euspira rectilabrum (Conrad 1858)
16 specimens
Euspira rectilabrum (Conrad)
Polinices kummeli Sohl 1960
2 specimens
Polinices kummeli Sohl
Gastropoda - Neogastropoda - Turbinellidae
Napulus sp. Stephenson 1941
1 specimen
Napulus sp.
Gastropoda - Neogastropoda - Olividae
Ancilla (Ancillus) acutula (Stephenson 1941)
4 specimens
recombined as Ancillus acutula
Ancilla (Ancillus) acutula (Stephe
Gastropoda - Neogastropoda - Cancellariidae
Caveola acuta Wade 1926
1 specimen
Caveola acuta speciosa Sohl
Gastropoda - Neogastropoda - Paladmetidae
Paladmete cancellaria Conrad 1858
9 specimens
Paladmete cancellaria (Conrad)
Paladmete laevis Sohl 1964
1 specimen
Paladmete laevis Sohl
Gastropoda - Neogastropoda - Fasciolariidae
Remera flexicostata Sohl 1964
7 specimens
Remera flexicostata Sohl
Rhombopsis sp. Gardner 1916
1 specimen
Rhombopsis sp.
Bellifusus sp. Stephenson 1941
1 specimen
Bellifusus sp.
Hercorhynchus (Hercorhyncus) pagodaformis Sohl 1964
2 specimens
Hercorhyncus (Hercorhyncus) pagoda - originally entered as "Hercorhyncus pagodaformis"
Drilluta sp. Wade 1916
1 specimen
Drilluta sp.
Gastropoda - Neogastropoda - Volutidae
Liopeplum cretaceum Conrad 1858
2 specimens
Liopeplum cretaceum (Conrad)
Gastropoda - Neogastropoda - Pholidotomidae
Morea marylandica Gardner 1916
2 specimens
Morea marylandica Gardner
Gastropoda - Neogastropoda - Muricidae
Sargana stantoni Weller 1907
2 specimens
Sargana stantoni (Weller)
Gastropoda - Neogastropoda - Turridae
Beretra ripleyana Conrad 1858
4 specimens
Beretra ripleyana (Conrad)
Remnita anomalocostata Wade 1926
1 specimen
Remnita anomalocostata (Wade)
Remnita hastata Sohl 1964
2 specimens
Remnita hastata Sohl
Gastropoda - Neogastropoda - Pyropsidae
Pyropsis sp. (Conrad 1860)
3 specimens
Pyropsis spp.
Gastropoda - Neogastropoda - Moreidae
Hercorhynchus (Haplovoluta) trililatus
1 specimen
Hercorhyncus (Haplovoluta) trilila - originally entered as "Hercorhyncus trililatus"
Gastropoda - Aporrhaidae
Pterocerella tippana
2 specimens
Pterocerella tippana (Conrad)
Arrhoges (Latiala) cf. lobata (Wade 1926)
1 specimen
recombined as Latiala lobata
Arrhoges (Latiala) cf. A. Lobata ( - originally entered as "Arrhoges cf. lobata"
Gastropoda - Heterostropha - Gordenellidae
Promathilda (Clathrobaculus) cf. parvula Sohl 1960
5 specimens
Promathilda (Clathrobaculus) cf. P - originally entered as "Promathilda cf. parvula"
Gastropoda - Heterostropha - Mathildidae
Mathilda cf. cedarensis Stephenson 1941
5 specimens
Mathilda cf. M. cedarensis Stephen - originally entered as "Mathilda cf. cedarensis"
Gastropoda - Heterostropha - Architectonicidae
Pseudomalaxis pateriformis Stephenson 1955
1 specimen
Pseudomalaxis pateriformis Stephen
Gastropoda - Heterostropha - Acteonidae
Actaeon sp. Oken 1815
1 specimen
replaced by Acteon
Acteon sp. - originally entered as "Acteon sp."
Gastropoda - Heterostropha - Ringiculidae
Ringicula (Ringiculella) clarki Durham 1944
62 specimens
recombined as Ringicula (Ringiculina) clarki
Ringicula (Ringiculella) clarki Ga
Gastropoda - Opisthobranchia - Scaphandridae
Ellipsoscapha cylindrica (Gardner 1916)
1 specimen
Ellipsoscapha cylindrica (Gardner)
Bivalvia - Nuculanida - Nuculanidae
Nuculana whitfieldi
26 specimens
Nuculana whitfieldi (Gardner)
Nuculana rostrotruncata (Gardner 1916)
12 specimens
recombined as Nuculana rostratruncata
Nuculana rostrotruncata (Gardner)
Bivalvia - Nuculanida - Malletiidae
Perissonata protexta
1 specimen
original and current combination Perrisonota
Perissonata protexta (Conrad) non G
Bivalvia - Nuculida - Nuculidae
Nucula percrassa
58 specimens
Nucula percrassa Conrad
Nucula amica Gardner 1916
1 specimen
Nucula amica Gardner
Nucula cuneifrons (Conrad 1860)
4 specimens
original and current combination Nucula cunifrons
Nucula cunifrons Conrad
Bivalvia - Pandorida - Laternulidae
Laternula ? robusta
1 specimen
Laternula ? robusta Stephenson - originally entered as "Laternula ? robusta"
Bivalvia - Poromyida - Poromyidae
Liopistha protexta Conrad 1853
11 specimens
Liopistha protexta Conrad
Bivalvia - Solenida - Pharidae
Leptosolen biplicata (Conrad 1858)
13 specimens
Leptosolen biplicata (Conrad)
Bivalvia - Pholadida - Pholadidae
Clavipholas pectorosa
2 specimens
Claripholas pectorosa (Conrad)
Bivalvia - Pholadida - Corbulidae
Caestocorbula (Parmicorbula) percompressa
3 specimens
Caesticorbula (Parmicorbula) perco - originally entered as "Caesticorbula percompressa"
Caestocorbula (Caesticorbula) crassaplica Vincent 1910
19 specimens
Caesticorbula (Caesticorbula) cras - originally entered as "Caesticorbula crassaplica"
Bivalvia - Cardiida - Arcticidae
Etea sp. Conrad 1873
2 specimens
Etea sp.
Tenea parilis
18 specimens
Tenea parilis Conrad
Bivalvia - Cardiida - Glossidae
Glossus sp. Poli 1795
2 specimens
Glossus sp.
Bivalvia - Cardiida - Veneridae
Cyclorisma parva
3 specimens
Cyclorisma parva (Gardner)
Legumen ellipticum
18 specimens
Legumen ellipticum Conrad
Cyprimeria alta
7 specimens
Cyprimeria alta Conrad
Cyprimeria depressa
8 specimens
Cyprimeria depressa Conrad
Bivalvia - Cardiida - Mactridae
Cymbophora berryi
30 specimens
Cymbophora berryi (Gardner)
Cymbophora wordeni
3 specimens
Cymbophora wordeni (Gardner)
Bivalvia - Cardiida - Tellinidae
Aenona eufaulensis Conrad 1860
20 specimens
Aenona eufaulensis (Conrad)
Linearia metastriata
5 specimens
original and current combination Linearis
Linearia metastriata Conrad
Tellinimera gabbi
5 specimens
Tellinimeria gabbi Gardner - originally entered as "Tellinimeria gabbi"
Solyma gardnerae
1 specimen
Solyma gardnerae Stephenson
Tellina sp. Linnaeus 1758
2 specimens
Tellina sp.
Bivalvia - Cardiida - Cardiidae
Granocardium (Granocardium) kummeli
8 specimens
synonym of Trachycardium
Granocardium (Granocardium) kummel
Trachycardium eufaulensis (Conrad 1860)
19 specimens
Trachycardium eufaulensis (Conrad)
Bivalvia - Lucinida - Lucinidae
Myrtea stephensoni
3 specimens
Myrtea stephensoni Gardner
Bivalvia - Carditida - Crassatellidae
Crassatella vadosa Morton 1834
89 specimens
Crassatella vadosa vadosa Morton
Bivalvia - Carditida - Carditidae
Vetericardiella crenalirata
1 specimen
Vetericardiella crenalirata (Conra
Bivalvia - Trigoniida - Megatrigoniidae
Pterotrigonia (Scabrotrigonia) eufaulensis (Gabb 1860)
10 specimens
Pterotrigonia (Scabrotrigonia) euf
Bivalvia - Mytilida - Crenellidae
Crenella elegantula Meek and Hayden 1862
1 specimen
Crenella elegantula Meek & Hayden
Crenella serica Conrad 1860
33 specimens
Crenella serica Conrad
Bivalvia - Mytilida - Mytilidae
Lycettia tippanus
14 specimens
Lycettia tippanus (Conrad)
Bivalvia - Pectinida - Pectinidae
Camptonectes (Camptonectes) sp. Meek 1864
3 specimens
Camptonectes (Comptonectes) sp.
Bivalvia - Pectinida - Anomiidae
Anomia (Anomia) ornata Gabb 1876
1 specimen
Anomia (Anomia) ornata Gabb
Anomia (Anomia) argentaria Morton 1833
7 specimens
Anomia (Anomia) argentaria Morton
Bivalvia - Pectinida - Entoliidae
Syncyclonema simplicius
34 specimens
Syncylonema simplicus (Conrad) - originally entered as "Syncylonema simplicius"
Bivalvia - Ostreida - Pteriidae
Phelopteria linguiformis
1 specimen
Phelopteria linguiformis (Evans & Shu
Bivalvia - Ostreida - Ostreidae
Arctostrea falacata
13 specimens
Arctostrea falacata (Gabb)
Bivalvia - Ostreida - Flemingostreidae
Cubitostrea tecticosta (Gabb 1860)
14 specimens
Cubitostrea tecticosta (Gabb)
Bivalvia - Ostreida - Gryphaeidae
Exogyra sp. Say 1820
1 specimen
Exogyra sp.
Bivalvia - Arcida - Arcidae
Striarca sp. Conrad 1862
2 specimens
Striarca sp.
Bivalvia - Arcida - Parallelodontidae
Nemodon eufaulensis
4 specimens
Nemodon eufaulensis (Gabb) [entered as Nemodon eufaulensis]
Bivalvia - Arcida - Glycymerididae
Postligata wordeni
7 specimens
Postligata wordeni Gardner
Bivalvia - Arcida - Cucullaeidae
Cucullaea (Idonearca) capax Conrad 1858
1 specimen
recombined as Idonearca capax
Cucullaea (Idonearca) capax Conrad
unclassified
Bryozoa indet. Ehrenberg 1831
Bryozoa (branching)
Anthozoa - Scleractinia - Micrabaciidae
Micrabacia sp. Milne-Edwards 1849
Micrabacia spp.
unclassified
Mesostoma sp. Ehrenberg 1837
1 specimen
Mesostoma sp.
see common names

Geography
Country:United States State/province:Maryland County:Prince Georges
Coordinates: 38.9° North, 76.9° West (view map)
Paleocoordinates:39.7° North, 52.8° West
Geographic resolution:small collection
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Maastrichtian 10 m.y. bin:Cretaceous 8
*Period:Late/Upper Cretaceous *Epoch:Late/Upper Senonian
*International age/stage:Middle - Late/Upper Maastrichtian
Key time interval:Late/Upper Maastrichtian Ammonoid zone: Discoscaphites conradi
Age range of interval:72.10000 - 66.00000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Severn Member:uppermost
Stratigraphic resolution:member
Stratigraphy comments: Haustator bilira assemblage zone
Lithology and environment
Primary lithology:glauconitic,gray argillaceous sandstone
Environment:marine indet. Tectonic setting:passive margin
Taphonomy
Modes of preservation:body,original aragonite,original calcite
Size of fossils:macrofossils
Collection methods and comments
Collection excludes:some macrofossils
Collection methods:bulk,field collection
Reason for describing collection:paleoecologic analysis
Museum repositories:USGS
Collection method comments: Sohl collection
Metadata
Also known as:Brightseat; USGS # 32773
Database number:4372
Authorizer:M. Kosnik Enterer:M. Kosnik
Modifier:M. Manojlovic Research group:marine invertebrate
Created:1999-08-14 13:00:00 Last modified:2016-08-08 11:58:47
Access level:the public Released:1999-08-14 13:00:00
Creative Commons license:CC BY
Reference information

Primary reference:
281. 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]