Howellella-Striispirifer-Ramose Bryozoan Subcommunity of the Rochester Shale at (Silurian of the United States)

Where: Niagara County County, New York (43.1° N, 79.1° W: paleocoordinates 27.0° S, 44.8° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Lewiston Member (Rochester Shale Formation), Wenlock (433.4 - 427.4 Ma)

• Middle beds of the Rochester Shale, Lewiston Member, Submember D

• group of beds-level stratigraphic resolution

Environment/lithology: offshore; lithified, gray, calcareous mudstone and lithified, silty, sandy carbonate

• 2003:04:06 SEP environmental/tectonic/sequence calls based on field knowledge familiarity with stratigraphic context.
• Lithology is predominantly medium gray, calcareous mudstone but thin calcarenite and calcisiltite beds indicate distal effects of storms. This indicates a bathymetric setting within storm wave base. Fossils occur in basal lags in the storm beds in intervening mudstones.

Primary reference: 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]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 13051: authorized by Michael Foote, entered by Kimberly Koverman on 17.01.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

 Corynexochida - Illaenidae
Bumastus ioxus Hall 1868 trilobite
 Phacopida - Dalmanitidae
 Phacopida - Homalonotidae
 Phacopida - Calymenidae
Calymene sp. Brongniart 1822 trilobite
 Orthotetida - Chilidiopsidae
"Coolinia subplana" = Fardenia (Coolinia)
"Coolinia subplana" = Fardenia (Coolinia)
 Strophomenida - Rafinesquinidae
Leptaena ? rhomboidalis Wahlenberg 1818
Leptaena 'rhomboidalis'
 Strophomenida - Amphistrophiidae
 Dictyonellida - Eichwaldiidae
"Dictyonella corallifera" = Eodictyonella
"Dictyonella corallifera" = Eodictyonella
 Athyridida - Rhynchospirinidae
 Athyridida - Meristellidae
 Spiriferida - Cyrtiidae
 Spiriferida - Delthyrididae
Howellella crispa Hisinger 1827
 Atrypida -
Atrypidina indet. Moore 1952
 Atrypida - Atrypidae
 Rhynchonellida - Trigonirhynchiidae
 Rhynchonellida - Rhynchotrematidae
 Orthida - Dicoelosiidae
Dicoelosia biloba Linnaeus 1758
 Orthida - Dalmanellidae
 Ostreida - Pterineidae
 Euomphalina - Platyceratidae
Platyceras spp., "Naticonema niagarensis" = Platyostoma niagarensis
Platyceras spp. Conrad 1840 snail
"Naticonema niagarensis" = Platyostoma niagarensis Hall 1852 snail
 Cornulitida - Cornulitidae
 Fenestrida - Fenestellidae
 Cystoporida - Fistuliporidae
 Cryptostomata - Rhinoporidae
 Trepostomata - Halloporidae
 Glyptocystitoida - Callocystitidae
 Glyptocystitoida - Cheirocrinidae
"Calceocrinus chrysalis" = Cheirocrinus chrysalis
"Calceocrinus chrysalis" = Cheirocrinus chrysalis Hall 1860
 Coronata - Stephanocrinidae
 Rhombifera - Caryocrinitidae
 Disparida -
 Flexibilia -
 Sagenocrinida - Lecanocrinidae
 Dendrocrinida - Dendrocrinidae
Dendrocrinus sp. Hall 1852 Sea lily
 Monobathrida - Patelliocrinidae
 Diplobathrida -
 Favositida - Favositidae
Favosites parasiticus tabulate coral
 Stauriida - Streptelasmatidae
 Conulariida - Conulariidae
Conularia sp. jellyfish