Eoplectodonta-Dicoelosia Subcommunity of the Rochester Shale at Densmore Creek: Wenlock, New York

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Crinoidea
Crinoidea indet. Miller 1821
Crinoidea - Diplobathrida - Dimerocrinitidae
Dimerocrinites sp. Phillips 1839
Crinoidea - Diplobathrida - Gazacrinidae
Gazacrinus sp. Miller 1892
Crinoidea - Monobathrida - Eucalyptocrinitidae
Eucalyptocrinites caelatus
Crinoidea - Dendrocrinida - Dendrocrinidae
Dendrocrinus longidactylus Hall 1852
Blastoidea - Coronata - Stephanocrinidae
Cupulocorona gemmiformis (Hall 1872)
Polychaeta - Phyllodocida
Machaeridia indet.
Tentaculita - Cornulitida - Cornulitidae
Cornulites sp. Schlotheim 1820
Cephalopoda - Orthocerida - Dawsonoceratidae
Dawsonoceras americanus
Gastropoda - Euomphalina - Platyceratidae
Platyceras spp.
Naticonema niagarensis (Hall 1852)
original and current combination Platyostoma niagarensis
Bivalvia - Ostreida - Pterineidae
Cornellites emaceratus
Craniata - Craniopsida - Craniopsidae
Craniops sp. Hall 1859
Chileata - Dictyonellida - Eichwaldiidae
Dictyonella corallifera
replaced by Eodictyonella
Rhynchonellata - Rhynchonellida - Trigonirhynchiidae
Ancillotoechia obtusiplicata
Rhynchotreta americana (Hall 1879)
Rhynchonellata - Spiriferida - Delthyrididae
Howellella crispa (Hisinger 1827)
Rhynchonellata - Spiriferida - Cyrtinopsidae
Boucotinskia sulcata (Hisinger 1837)
Rhynchonellata - Spiriferida - Cyrtiidae
Striispirifer niagarensis (Conrad 1842)
Eospirifer radiatus (Sowerby 1834)
Rhynchonellata - Atrypida - Atrypidae
Atrypa ? reticularis (Linnaeus 1758)
original and current combination Anomia reticularis
Atrypa 'reticularis'
Rhynchonellata - Atrypida - Atrypinidae
Atrypina rugosa
Rhynchonellata - Athyridida - Meristellidae
Whitfieldella nitida (Hall 1843)
Rhynchonellata - Athyridida - Rhynchospirinidae
Trematospira camura
Rhynchonellata - Orthida - Hesperorthidae
Flabellitesia flabellites
Rhynchonellata - Orthida - Dicoelosiidae
Dicoelosia biloba (Linnaeus 1758)
Rhynchonellata - Orthida - Rhipidomellidae
Dalejina sp. Havlicek 1953
Dalejina hybrida (Sowerby 1839)
Rhynchonellata - Orthida - Dalmanellidae
Resserella elegantula (Dalman 1828)
Rhynchonellata - Protorthida - Skenidiidae
Skenidioides pyramidalis (Twenhofel 1928)
Strophomenata - Strophomenida - Rafinesquinidae
Leptaena ? rhomboidalis (Wahlenberg 1818)
recombined as Leptaena (Leptaena) rhomboidalis
Leptaena 'rhomboidalis'
Strophomenata - Strophomenida - Sowerbyellidae
Eoplectodonta transversalis (Wahlenberg 1818)
recombined as Eoplectodonta (Eoplectodonta) transversalis
Strophomenata - Orthotetida - Chilidiopsidae
Coolinia subplana
spelled with current rank as Fardenia (Coolinia)
unclassified
Bryozoa indet. Ehrenberg 1831
indet spp. (5 forms)
Stenolaemata - Trepostomata - Halloporidae
Hallopora elegantula (Hall 1851)
original and current combination Callopora elegantula
Stenolaemata - Cystoporata - Fistuliporidae
Chilotrypa ostiolata
original and current combination Cheilotrypa
Stenolaemata - Cystoporata - Ceramoporidae
Ceramopora incrustans
Ceramopora imbricata Hall 1852
Stenolaemata - Cryptostomata - Rhinoporidae
Lichenalia concentrica Hall 1852
Stenolaemata - Phylloporinidae
Phylloporina asperatastriata
Trilobita - Phacopida - Calymenidae
Calymene niagarensis Hall 1843
Trilobita - Phacopida - Dalmanitidae
Dalmanites limulurus
Trilobita - Phacopida - Cheiruridae
Cheirurus sp. Beyrich 1845
Anthozoa - Stauriida - Streptelasmatidae
Enterolasma caliculum
Anthozoa - Favositida - Pachyporidae
Striatopora flexuosa Hall 1852
Heteractinida - Octactinellida - Astraeospongiidae
Astraeospongia sp. Roemer 1860
corrected as Astraeospongium
see common names

Geography
Country:United States State/province:New York County:Monroe County
Coordinates: 43.2° North, 77.5° West (view map)
Paleocoordinates:27.4° South, 43.6° West
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period:Silurian Epoch:Wenlock
10 m.y. bin:Silurian 2
*Period:Early/Lower Silurian *Epoch:Early/Lower Wenlock - Middle Wenlock
Key time interval:Wenlock
Age range of interval:433.40000 - 427.40000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Geological group:Clinton Formation:Rochester Shale Member:Lewiston
Stratigraphic resolution:member
Lithology and environment
Primary lithology: "shale"
Secondary lithology: grainstone
Lithology description: Excellent collections have been obtained from bulk samples of weathered shale at Densmore Creek in the town of Irondequoit... Relatively shallow depths are indicated by abundant calcarenites that appear to represent coquinites winnowed by storm waves or storm generated combined flows... The presence of sharp bases, crude upward fining, minor cross lamination, lenticular geometries, and particularly well preserved, articulated fossils in the lags indicates episodic rather than ongoing current agitation of the sea floor.
Environment:offshore Tectonic setting:foreland basin
Glacial or sequence phase:highstand systems tract
Geology comments: 2003:04:06 SEP environmental/tectonic/sequence calls based on field knowledge familiarity with stratigraphic context.
Taphonomy
Modes of preservation:body
Collection methods and comments
Reason for describing collection:paleoecologic analysis
Metadata
Database number:13047
Authorizer:M. Foote Enterer:K. Koverman
Modifier:M. Foote Research group:marine invertebrate
Created:2002-01-17 12:23:48 Last modified:2006-09-15 15:14:05
Access level:the public Released:2002-01-17 12:23:48
Creative Commons license:CC BY
Reference information

Primary reference:
4294. C. E. Brett. 1999. Wenlockian fossil communities in New York State and adjacent areas: Paleontology and Paleoecology. In A. J. Boucot, J. D. Lawson (eds.), Paleocommunities: A Case Study from the Silurian and Lower Devonian 592-637 [M. Foote/K. Koverman/J. Alroy]