PBDB Collection

Striispirifer-Amphistrophia community of the Homocrinus beds of the Rochester Sh (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)

• Homocrinus beds

• group of beds-level stratigraphic resolution

Environment/lithology: offshore; gray mudstone and grainstone

• 2003:04:06 SEP environmental/tectonic/sequence calls based on field knowledge familiarity with stratigraphic context.

• ...sparsely fossiliferous, medium gray shale and mudstones. Interbeds include calcisiltites, and rare calcarenites as well as silty 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 12936: authorized by Michael Foote, entered by Kimberly Koverman on 11.01.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

unclassified
-	Homeospira apriniformis, Machaerida indet. Homeospira apriniformis Machaerida indet. indet. machaeridian plates
Trilobita
-	Trilobita indet. Trilobita indet. Walch 1771 trilobite indet. fragments (Dalmanites?)
Proetida - Brachymetopidae	Radnoria sp. Radnoria sp. Wasmann 1894 trilobite
Phacopida - Homalonotidae	Trimerus delphinocephalus Trimerus delphinocephalus trilobite
Phacopida - Calymenidae	Calymene sp. Calymene sp. Brongniart 1822 trilobite
Phacopida - Dalmanitidae	Dalmanites limulurus Dalmanites limulurus trilobite
Corynexochida - Illaenidae	Bumastus ioxus Bumastus ioxus Hall 1868 trilobite
Lichida - Lichidae	Arctinurus boltoni Arctinurus boltoni Bigsby 1825 trilobite
Bivalvia
Ostreida - Pterineidae	Cornellites emaceratus Cornellites emaceratus oyster
Gastropoda
Euomphalina - Platyceratidae	"Naticonema niagarensis" = Platyostoma niagarensis "Naticonema niagarensis" = Platyostoma niagarensis Hall 1852 snail
Cephalopoda
Orthocerida - Dawsonoceratidae	Dawsonoceras americanum Dawsonoceras americanum
Bryozoa
-	Bryozoa indet. Bryozoa indet. Ehrenberg 1831 indeterminant encrusting form
Stenolaemata
Cystoporata - Fistuliporidae	Chilotrypa ostiolata Chilotrypa ostiolata
Cryptostomata - Fenestellidae	Fenestella sp. Fenestella sp. Lonsdale 1839
Cryptostomata - Rhinoporidae	Lichenalia concentrica Lichenalia concentrica Hall 1852
- Phylloporinidae	Phylloporina asperatostriata Phylloporina asperatostriata
Trepostomata - Trematoporidae	Trematopora tuberculata Trematopora tuberculata
Lophophorata
Tentaculitida - Cornulitidae	Cornulites sp. Cornulites sp. Schlotheim 1820
Craniata
Craniopsida - Craniopsidae	Craniops squammiformis Craniops squammiformis
Strophomenata
Strophomenida - Sowerbyellidae	"Eoplectodonta transversalis" = Eoplectodonta (Eoplectodonta) transversalis "Eoplectodonta transversalis" = Eoplectodonta (Eoplectodonta) transversalis Wahlenberg 1818
Strophomenida - Amphistrophiidae	Amphistrophia striata Amphistrophia striata Hall 1843
Strophomenida - Rafinesquinidae	Leptaena ? rhomboidalis Leptaena ? rhomboidalis Wahlenberg 1818 Leptaena 'rhomboidalis'
Orthotetida - Chilidiopsidae	"Coolinia subplana" = Fardenia (Coolinia) "Coolinia subplana" = Fardenia (Coolinia)
Rhynchonellata
Rhynchonellida - Rhynchotrematidae	Stegerhynchus neglectus, Stegerhynchus sp. Stegerhynchus neglectus Stegerhynchus sp. Foerste 1909
Athyridida - Meristellidae	Whitfieldella nitida Whitfieldella nitida Hall 1843
Athyridida - Rhynchospirinidae	Trematospira camura Trematospira camura
Spiriferida - Cyrtiidae	Striispirifer niagarensis Striispirifer niagarensis Conrad 1842
Atrypida - Atrypinidae	Atrypina rugosa Atrypina rugosa
Atrypida - Atrypidae	Atrypa ? reticularis Atrypa ? reticularis Linnaeus 1758 Atrypa 'reticularis'
Orthida - Dicoelosiidae	Dicoelosia biloba Dicoelosia biloba Linnaeus 1758
Orthida - Rhipidomellidae	Dalejina hybrida Dalejina hybrida Sowerby 1839
Pterobranchia
- Cyclograptidae	Reticulograptus retiforme Reticulograptus retiforme graptolite
Ophiuroidea
Oegophiurida - Protasteridae	Protaster stellifer Protaster stellifer Ringueberg 1886 brittle star
Asteroidea
Hadrosida - Palaeasteridae	Palaeaster niagarensis Palaeaster niagarensis Hall 1852 sea star
Rhombifera
Hemicosmitoida - Caryocrinitidae	Caryocrinites ornatus Caryocrinites ornatus Say 1825
Crinoidea
Homocrinida - Homocrinidae	Homocrinus parvus Homocrinus parvus Hall 1852 Sea lily
Flexibilia -	Icthyocrinus laevis Icthyocrinus laevis Sea lily
Sagenocrinida - Homalocrinidae	Asaphocrinus ornatus Asaphocrinus ornatus Sea lily
Dendrocrinida - Dendrocrinidae	Dendrocrinus longidactylus Dendrocrinus longidactylus Hall 1852 Sea lily
Diplobathrida - Rhodocrinitidae	Lyriocrinus dactylus Lyriocrinus dactylus Sea lily
Monobathrida - Patelliocrinidae	Macrostylocrinus ornatus Macrostylocrinus ornatus Sea lily
Edrioasteroidea
- Hemicystitidae	Hemicystites parasiticus Hemicystites parasiticus
Heteractinida
Octactinellida - Astraeospongiidae	"Astraeospongia sp." = Astraeospongium "Astraeospongia sp." = Astraeospongium Roemer 1860
Anthozoa
Favositida - Favositidae	Favosites parasiticus Favosites parasiticus tabulate coral