Sohl and Koch OFR # 416: Late/Upper Maastrichtian, Maryland

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Acirsa (Hemiacirsa) flexicostata Sohl 1964
1 specimen
Acirsa (Hemiacirsa) flexicostata S
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
78 specimens
Dentalium leve Stephenson
Cephalopoda - Ammonitida - Sphenodiscidae
Sphenodiscus sp. Meek 1871
4 specimens
Sphenodiscus sp.
Cephalopoda - Ammonitida - Scaphitidae
Discoscaphites sp. Meek 1870
5 specimens
Discoscaphites sp.
Discoscaphites conradi (Morton 1834)
1 specimen
Discoscaphites conradi (Morton) va
Cephalopoda - Ammonitida - Baculitidae
Baculites sp. Lamarck 1799
7 specimens
Baculites sp.
Gastropoda - Pickworthiidae
Urceolabrum tuberculatum
7 specimens
Urceolabrum turberculatum callistu
Gastropoda - Turritellidae
Turritella paravertebroides
1 specimen
Turritella paravertebroides Gardne
Turritella (Sohlitella) trilira (Conrad 1860)
1 specimen
original and current combination Turritella trilira
Turritella (Sohlitella) trilira (C
Turritella (Sohlitella) bilira (Stephenson 1941)
4 specimens
recombined as Haustator bilira
Turritella (Sohlitella) bilira (St
Gastropoda - Naticidae
Gyrodes americanus
2 specimens
Gyrodes americanus Wade
Euspira rectilabrum (Conrad 1858)
11 specimens
Euspira rectilabrum (Conrad)
Gastropoda - Ranellidae
Trachytriton sp. n. sp. Meek 1864
1 specimen
Trachyritan n. sp. - originally entered as "Trachytriton n. sp."
Gastropoda - Neogastropoda - Paladmetidae
Paladmete cancellaria Conrad 1858
5 specimens
Paladmete cancellaria (Conrad)
Gastropoda - Neogastropoda - Fasciolariidae
Remera flexicostata Sohl 1964
1 specimen
Remera flexicostata Sohl
Bellifusus curvicostatus Wade 1926
3 specimens
Bellifusus curvicostatus (Wade)
Hercorhynchus (Hercorhyncus) tippanus Conrad 1860
1 specimen
Hercorhyncus (Hercorhyncus) tippan - originally entered as "Hercorhyncus tippanus"
Graphidula multicostata Stephenson 1941
1 specimen
Graphidula multicostata Stephenson
Gastropoda - Neogastropoda - Volutidae
Myobarbum ? monmouthensis
1 specimen
Myobarbum ? monmouthensis (Gardner - originally entered as "Myobarbum ? monmouthensis"
Gastropoda - Neogastropoda - Turridae
Beretra ripleyana Conrad 1858
1 specimen
Beretra ripleyana (Conrad)
Gastropoda - Aporrhaidae
Pterocerella tippana
1 specimen
Pterocerella tippana (Conrad)
Gastropoda - Heterostropha - Pyramidellidae
Creonella triplicata Wade 1917
1 specimen
Creonella triplicata Wade
Gastropoda - Heterostropha - Ringiculidae
Oligoptycha sp. Meek 1876
1 specimen
Oligoptycha sp.
Ringicula (Ringiculella) clarki Durham 1944
18 specimens
recombined as Ringicula (Ringiculina) clarki
Ringicula (Ringiculella) clarki Ga
Gastropoda - Opisthobranchia - Cylichnidae
Cylichna sp. Lovén 1846
1 specimen
Cylichna sp.
Bivalvia - Nuculanida - Nuculanidae
Nuculana whitfieldi
4 specimens
Nuculana whitfieldi (Gardner)
Nuculana rostrotruncata (Gardner 1916)
6 specimens
recombined as Nuculana rostratruncata
Nuculana rostrotruncata (Gardner)
Bivalvia - Nuculanida - Malletiidae
Perissonata littlei
1 specimen
original and current combination Perrisonota
Perissonata littlei Gardner
Perissonata protexta
2 specimens
original and current combination Perrisonota
Perissonata protexta (Conrad) non G
Bivalvia - Nuculida - Nuculidae
Nucula percrassa
35 specimens
Nucula percrassa Conrad
Nucula cuneifrons (Conrad 1860)
8 specimens
original and current combination Nucula cunifrons
Nucula cunifrons Conrad
Bivalvia - Pandorida - Laternulidae
Anatimya anteradiata (Conrad 1860)
1 specimen
Anatymya anteradiata Conrad - originally entered as "Anatymya anteradiata"
Bivalvia - Poromyida - Poromyidae
Liopistha protexta Conrad 1853
5 specimens
Liopistha protexta Conrad
Bivalvia - Solenida - Pharidae
Leptosolen biplicata (Conrad 1858)
9 specimens
Leptosolen biplicata (Conrad)
Bivalvia - Pholadida - Pholadidae
Opertochasma sp. Stephenson 1953
37 specimens
Opertochasma sp.
Bivalvia - Pholadida - Corbulidae
Corbula monmouthensis Gardner 1916
2 specimens
Corbula monmouthensis Gardner
Corbula subradiata
1 specimen
Corbula subradiata Gardner
Caestocorbula (Parmicorbula) percompressa
7 specimens
Caesticorbula (Parmicorbula) perco - originally entered as "Caesticorbula percompressa"
Caestocorbula (Caesticorbula) crassaplica Vincent 1910
3 specimens
Caesticorbula (Caesticorbula) cras - originally entered as "Caesticorbula crassaplica"
Bivalvia - Cardiida - Arcticidae
Etea cf. carolinensis Conrad 1875
3 specimens
Etea cf. Etea carolinensis Conrad - originally entered as "Etea cf. carolinensis"
Tenea parilis
12 specimens
Tenea parilis Conrad
Bivalvia - Cardiida - Veneridae
Legumen ellipticum
7 specimens
Legumen ellipticum Conrad
Cyprimeria alta
5 specimens
Cyprimeria alta Conrad
Cyprimeria depressa
4 specimens
Cyprimeria depressa Conrad
Bivalvia - Cardiida - Mactridae
Cymbophora berryi
58 specimens
Cymbophora berryi (Gardner)
Bivalvia - Cardiida - Tellinidae
Aenona eufaulensis Conrad 1860
16 specimens
Aenona eufaulensis (Conrad)
Tellinimera gabbi
6 specimens
Tellinimeria gabbi Gardner - originally entered as "Tellinimeria gabbi"
Bivalvia - Cardiida - Cardiidae
Granocardium (Granocardium) kummeli
8 specimens
synonym of Trachycardium
Granocardium (Granocardium) kummel
Trachycardium eufaulensis (Conrad 1860)
38 specimens
Trachycardium eufaulensis (Conrad)
Bivalvia - Lucinida - Lucinidae
Myrtea stephensoni
1 specimen
Myrtea stephensoni Gardner
Bivalvia - Carditida - Crassatellidae
Crassatella vadosa Morton 1834
73 specimens
Crassatella vadosa vadosa Morton
Bathytormus pteropsis (Conrad 1860)
1 specimen
Bathytormus pteropsis (Conrad)
Bivalvia - Trigoniida - Megatrigoniidae
Pterotrigonia (Scabrotrigonia) eufaulensis (Gabb 1860)
19 specimens
Pterotrigonia (Scabrotrigonia) euf
Bivalvia - Mytilida - Crenellidae
Crenella serica Conrad 1860
29 specimens
Crenella serica Conrad
Bivalvia - Mytilida - Mytilidae
Botula conchafodentis
1 specimen
Botula conchafodentis (Gardner)
Modiolus sedesclaris
4 specimens
Modiolus sedesclaris Gardner
Lycettia tippanus
12 specimens
Lycettia tippanus (Conrad)
Bivalvia - Myalinida - Inoceramidae
Inoceramus (Inoceramus) sp. Sowerby 1814
1 specimen
Inoceramus (Inoceramus) sp.
Bivalvia - Pectinida - Pectinidae
Camptonectes (Camptonectes) bubonis (Stephenson 1941)
1 specimen
Camptonectes (Camptonectes) bubonis (
Bivalvia - Pectinida - Anomiidae
Anomia (Anomia) argentaria Morton 1833
5 specimens
Anomia (Anomia) argentaria Morton
Bivalvia - Pectinida - Entoliidae
Syncyclonema simplicius
44 specimens
Syncylonema simplicus (Conrad) - originally entered as "Syncylonema simplicius"
Bivalvia - Ostreida - Pteriidae
Pteria rhombica
1 specimen
Pteria rhombica Gardner
Bivalvia - Ostreida - Flemingostreidae
Cubitostrea tecticosta (Gabb 1860)
66 specimens
Cubitostrea tecticosta (Gabb)
Bivalvia - Arcida - Arcidae
Striarca saffordi
8 specimens
Striarca saffordi (Gardner) non Gab
Bivalvia - Arcida - Parallelodontidae
Nemodon stantoni
3 specimens
Nemodon stantoni Gardner
Bivalvia - Arcida - Glycymerididae
Postligata wordeni
4 specimens
Postligata wordeni Gardner
unclassified
Bryozoa indet. Ehrenberg 1831
Bryozoa (branching)
Anthozoa - Scleractinia - Micrabaciidae
Micrabacia sp. Milne-Edwards 1849
Micrabacia spp.
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: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:gray lithified 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:4367
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 11:58:02
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]