Sohl and Koch OFR # 415: Late/Upper Maastrichtian, Maryland

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Chitin indet.
Chitin
metazoan indet.
Worm Tubes
Anthozoa - Scleractinia - Micrabaciidae
Micrabacia sp. Milne-Edwards 1849
Micrabacia spp.
Cephalopoda - Nautilida - Nautilidae
Eutrephoceras dekayi (Morton 1834)
1 specimen
Eutrephoceras dekayi (Morton)
Cephalopoda - Ammonitida - Sphenodiscidae
Sphenodiscus sp. Meek 1871
1 specimen
Sphenodiscus sp.
Sphenodiscus lobatus (Tuomey 1856)
4 specimens
Sphenodiscus lobatus (Toumey)
Cephalopoda - Ammonitida - Baculitidae
Baculites sp. Lamarck 1799
2 specimens
Baculites sp. (Smooth-ovate)
Gastropoda - Epitoniidae
Striaticostatum sp. Sohl 1963
1 specimen
Striaticostatum sp.
Gastropoda - Turritellidae
Turritella sp. Lamarck 1799
1 specimen
Turritella sp.
Turritella tippana Conrad 1858
1 specimen
Turritella tippana Conrad
Turritella (Sohlitella) trilira (Conrad 1860)
5 specimens
original and current combination Turritella trilira
Turritella (Sohlitella) trilira (C
Turritella vertebroides Morton 1834
2 specimens
Turritella vertebroides Morton
Gastropoda - Pickworthiidae
Urceolabrum tuberculatum
4 specimens
Urceolabrum turberculatum callistu
Gastropoda - Neogastropoda
Neogastropoda indet. Thiele 1929
4 specimens
Neogastropods indeterminate
Gastropoda - Neogastropoda - Buccinidae
Stantonella interupta Conrad 1858
3 specimens
corrected as Stantonella interrupta
Stantonella interupta (Conrad)
Gastropoda - Neogastropoda - Fasciolariidae
Drilluta sp. Wade 1916
1 specimen
Drilluta sp.
Gastropoda - Neogastropoda - Turridae
Fusimilis tippanus Conrad 1858
1 specimen
Fusimilis tippanus (Conrad)
Gastropoda - Neogastropoda - Paladmetidae
Paladmete cancellaria Conrad 1858
1 specimen
Paladmete cancellaria (Conrad)
Gastropoda - Naticidae
Euspira rectilabrum (Conrad 1858)
10 specimens
Euspira rectilabrum (Conrad)
Gyrodes supraplicatus Conrad 1858
2 specimens
Gyrodes supraplicatus (Conrad)
Gastropoda - Heterostropha - Ringiculidae
Ringicula (Ringiculella) clarki Durham 1944
5 specimens
recombined as Ringicula (Ringiculina) clarki
Ringicula (Ringiculella) clarki Ga
Gastropoda - Heterostropha - Pyramidellidae
Creonella triplicata Wade 1917
1 specimen
Creonella triplicata Wade
Gastropoda - Heterostropha - Mathildidae
Mathilda cf. cedarensis Stephenson 1941
1 specimen
Mathilda cf. M. cedarensis Stephen - originally entered as "Mathilda cf. cedarensis"
Gastropoda - Heterostropha - Gordenellidae
Promathilda (Clathrobaculus) cf. parvula Sohl 1960
2 specimens
Promathilda (Clathrobaculus) cf. P - originally entered as "Promathilda cf. parvula"
Bivalvia - Arcida - Parallelodontidae
Nemodon eufaulensis
3 specimens
Nemodon eufaulensis (Gabb) [entered as Nemodon eufaulensis]
Bivalvia - Arcida - Arcidae
Striarca saffordi
10 specimens
Striarca saffordi (Gardner) non Gab
Bivalvia - Arcida - Glycymerididae
Postligata wordeni
50 specimens
Postligata wordeni Gardner
Bivalvia - Pectinida - Anomiidae
Anomia (Anomia) ornata Gabb 1876
1 specimen
Anomia (Anomia) ornata Gabb
Anomia (Anomia) argentaria Morton 1833
41 specimens
Anomia (Anomia) argentaria Morton
Bivalvia - Pectinida - Limidae
Lima (Lima) pelagica (Morton 1833)
1 specimen
Lima (Lima) pelagica (Morton)
Bivalvia - Pectinida - Entoliidae
Syncyclonema simplicius
43 specimens
Syncylonema simplicus (Conrad) - originally entered as "Syncylonema simplicius"
Bivalvia - Pectinida - Pectinidae
Camptonectes (Camptonectes) bubonis (Stephenson 1941)
1 specimen
Camptonectes (Camptonectes) bubonis (
Bivalvia - Ostreida - Pteriidae
Pteria sp. Scopoli 1777
1 specimen
Pteria sp.
Bivalvia - Ostreida - Flemingostreidae
Cubitostrea tecticosta (Gabb 1860)
66 specimens
Cubitostrea tecticosta (Gabb)
Bivalvia - Ostreida - Gryphaeidae
Pycnodonte vesicularis (Lamarck 1806)
15 specimens
recombined as Pycnodonta vesicularis
Pycnodonte vesicularis Lamarck
Gryphaeostrea vomer (Morton 1828)
1 specimen
Gryphaeostrea vomer Morton
Exogyra costata (Say 1820)
2 specimens
original and current combination Exogyra (Exogyra) costata
Exogyra costata Say
Bivalvia - Ostreida - Ostreidae
Ostrea plumosa Morton 1833
2 specimens
Ostrea plumosa Morton
Ostrea mesenterica Morton 1834
32 specimens
recombined as Lopha mesenterica
Ostrea mesenterica Morton
Bivalvia - Mytilida - Crenellidae
Crenella serica Conrad 1860
202 specimens
Crenella serica Conrad
Bivalvia - Mytilida - Mytilidae
Lithophaga sp. Röding 1798
1 specimen
Lithophaga sp.
Lycettia tippanus
6 specimens
Lycettia tippanus (Conrad)
Bivalvia - Lucinida - Lucinidae
Myrtea stephensoni
1 specimen
Myrtea stephensoni Gardner
Bivalvia - Pholadida - Pholadidae
Clavipholas pectorosa
1 specimen
Claripholas pectorosa (Conrad)
Bivalvia - Pholadida - Corbulidae
Caestocorbula (Parmicorbula) percompressa
23 specimens
Caesticorbula (Parmicorbula) perco - originally entered as "Caesticorbula percompressa"
Caestocorbula (Parmicorbula) terramaria
4 specimens
Caesticorbula (Parmicorbula) terra - originally entered as "Caesticorbula terramaria"
Caestocorbula (Caesticorbula) crassaplica Vincent 1910
49 specimens
Caesticorbula (Caesticorbula) cras - originally entered as "Caesticorbula crassaplica"
Corbula monmouthensis Gardner 1916
1 specimen
Corbula monmouthensis Gardner
Corbula subradiata
3 specimens
Corbula subradiata Gardner
Bivalvia - Cardiida - Arcticidae
Veniella conradi Morton 1833
2 specimens
Veniella conradi (Morton)
Bivalvia - Cardiida - Veneridae
Cyprimeria alta
4 specimens
Cyprimeria alta Conrad
Cyprimeria depressa
9 specimens
Cyprimeria depressa Conrad
Cyclorisma parva
9 specimens
Cyclorisma parva (Gardner)
Legumen ellipticum
1 specimen
Legumen ellipticum Conrad
Bivalvia - Cardiida - Mactridae
Cymbophora berryi
12 specimens
Cymbophora berryi (Gardner)
Bivalvia - Cardiida - Cardiidae
Granocardium (Granocardium) sp. (Gabb 1869)
1 specimen
synonym of Trachycardium
Granocardium (Granocardium) sp.
Trachycardium eufaulensis (Conrad 1860)
12 specimens
Trachycardium eufaulensis (Conrad)
Bivalvia - Cardiida - Tellinidae
Solyma gardnerae
1 specimen
Solyma gardnerae Stephenson
Linearia metastriata
4 specimens
original and current combination Linearis
Linearia metastriata Conrad
Aenona eufaulensis Conrad 1860
12 specimens
Aenona eufaulensis (Conrad)
Tellinimera buboana
2 specimens
Tellinimeria buboana Stephenson - originally entered as "Tellinimeria buboana"
Tellinimera gabbi
2 specimens
Tellinimeria gabbi Gardner - originally entered as "Tellinimeria gabbi"
Bivalvia - Hiatellida - Hiatellidae
Panopea monmouthensis
2 specimens
Panopea monmouthensis Gardner
Bivalvia - Carditida - Crassatellidae
Scambula perplana Conrad 1869
1 specimen
Scambula perplana Conrad
Crassatella vadosa Morton 1834
25 specimens
Crassatella vadosa vadosa Morton
Bivalvia - Trigoniida - Megatrigoniidae
Pterotrigonia (Scabrotrigonia) eufaulensis (Gabb 1860)
36 specimens
Pterotrigonia (Scabrotrigonia) euf
Bivalvia - Nuculida - Nuculidae
Nucula cuneifrons (Conrad 1860)
5 specimens
original and current combination Nucula cunifrons
Nucula cunifrons Conrad
Nucula percrassa
48 specimens
Nucula percrassa Conrad
Nucula perequalis
1 specimen
Nucula perequalis Conrad?
Bivalvia - Nuculanida - Nuculanidae
Nuculana whitfieldi
17 specimens
Nuculana whitfieldi (Gardner)
Nuculana rostrotruncata (Gardner 1916)
14 specimens
recombined as Nuculana rostratruncata
Nuculana rostrotruncata (Gardner)
Scaphopoda - Gadilida - Gadilidae
Cadulus obnutus
7 specimens
Cadulus obnutus (Conrad)
Scaphopoda - Dentaliida - Dentaliidae
Dentalium leve Stephenson 1923
25 specimens
Dentalium leve Stephenson
Polychaeta - Serpulimorpha
Hamulus squamosus
Hamulus squamosus Gabb
Hamulus onyx Morton 1834
Hamulus onyx Morton
unclassified
Vertebrata indet. Lamarck 1801
Bone material and Shark parts
see common names

Geography
Country:United States State/province:Maryland County:Prince Georges
Coordinates: 38.9° North, 76.8° 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:70.60000 - 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:Central Ave; USGS # 28858
Database number:4366
Authorizer:M. Kosnik Enterer:M. Kosnik
Modifier:P. Wagner Research group:marine invertebrate
Collections that are a subset of this one:82403
Created:1999-08-14 13:00:00 Last modified:2023-01-04 19:04:40
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]