PBDB Collection

Clorinda-Eoplectodonta Subcommunity of the Rockway Formation (Silurian to of the United States)

Where: Wayne County County, New York (43.1° N, 77.1° W)

• Paleocoordinates: 28.8° S, 89.1° W (Wright 2013)

• coordinate based on political unit

• local area-level geographic resolution

When: Pterospathodus amorphognathoides zone, Rockway Formation (Clinton Group), Llandovery to Llandovery (443.4 - 427.4 Ma)

• formation-level stratigraphic resolution

Environment/lithology: offshore ramp; lithified dolomite and lithified, gray, green shale

• This assemblage represents offshore, well oxygenated mud bottom conditions.

•2003:04:06 Environmenta/sequence calls by SEP based on Brett's work on NY Silurian and the regional stratigraphic context of the Irondequoit (correlative).

• In western New York and Ontario the basal Rockway Formation consists of argillaceous dolostone and gray, dolomitic shale, with a sparse, poorly preserved Costistricklandia fauna. The Rockway Formation changes facies in west-central New York to greenish-gray shale and dolostone previously assigned to undifferentiated lower Irondequoit, and still farther east to the sandy Dawes Dolostone.

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 13045: authorized by Michael Foote, entered by Kimberly Koverman on 17.01.2002

Creative Commons license: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names

Chlorophyceae
- Receptaculitidae	Ischadites sp. Ischadites sp. Eichwald 1861
Rhynchonellata
Athyridida - Meristellidae	Whitfieldella cylindrica, Whitfieldella intermedia, Whitfieldella nitida Whitfieldella cylindrica Whitfieldella intermedia Whitfieldella nitida Hall 1843
Pentamerida - Clorindidae	Clorinda fornicata Clorinda fornicata
Atrypida - Atrypidae	? Atrypa gibbosa, Atrypa reticularis, Plectatrypa nodostriata ? Atrypa gibbosa Atrypa reticularis Linnaeus 1758 Plectatrypa nodostriata
Atrypida - Atrypinidae	Atrypina rugosa Atrypina rugosa
Protorthida - Skenidiidae	Skenidioides pyramidale Skenidioides pyramidale
Spiriferida - Cyrtiidae	Cyrtia meta, "Cyrtia exporrecta" = Cyrtia exporrectus, Eospirifer radiatus Cyrtia meta "Cyrtia exporrecta" = Cyrtia exporrectus Wahlenberg 1818 Eospirifer radiatus Sowerby 1834
Spiriferida - Cyrtinopsidae	Boucotinskia sulcata Boucotinskia sulcata Hisinger 1837
Orthida - Orthidae	? Orthis tenuidens ? Orthis tenuidens 'Orthis' tenuidens
Orthida - Hesperorthidae	Flabellitesia flabellites Flabellitesia flabellites
Orthida - Dicoelosiidae	Dicoelosia biloba Dicoelosia biloba Linnaeus 1758
Orthida - Dalmanellidae	Resserella elegantula Resserella elegantula Dalman 1828
Strophomenata
Orthotetida - Chilidiopsidae	"Coolinia subplana" = Fardenia (Coolinia) "Coolinia subplana" = Fardenia (Coolinia)
Strophomenida - Strophochonetidae	Strophochonetes cornutus Strophochonetes cornutus Hall 1843
Strophomenida - Sowerbyellidae	"Eoplectodonta transversalis" = Eoplectodonta (Eoplectodonta) transversalis "Eoplectodonta transversalis" = Eoplectodonta (Eoplectodonta) transversalis Wahlenberg 1818
Strophomenida - Strophodontidae	"Protomegastrophia profunda" = Brachyprion (Protomegastrophia) profunda "Protomegastrophia profunda" = Brachyprion (Protomegastrophia) profunda Hall 1852
Strophomenida - Rafinesquinidae	Leptaena ? rhomboidalis Leptaena ? rhomboidalis Wahlenberg 1818 Leptaena 'rhomboidalis'
Stenolaemata
Cryptostomata - Semicosciniidae	Semicoscinium tenuiceps Semicoscinium tenuiceps
Cephalopoda
Orthocerida - Orthoceratidae	? Orthoceras abruptum ? Orthoceras abruptum 'Orthoceras' abruptum
Orthocerida - Dawsonoceratidae	Dawsonoceras annulatum Dawsonoceras annulatum Sowerby 1818
Bivalvia
Ostreida - Pterineidae	Cornellites emaceratus Cornellites emaceratus oyster
Trilobita
Phacopida - Encrinuridae	Encrinurus ornatus Encrinurus ornatus trilobite
Phacopida - Calymenidae	Liocalymene clintonensis Liocalymene clintonensis trilobite
Phacopida - Dalmanitidae	Dalmanites limulurus Dalmanites limulurus trilobite
Phacopida - Phacopidae	"? Phacops trisulcatus" = Phacopidella trisulcata "? Phacops trisulcatus" = Phacopidella trisulcata Hall 1852 trilobite 'Phacops' trisulcatus
Ostracoda
Palaeocopida - Zygobolbidae	Plethobolbina typicalis, Mastigobolbina punctata, Mastigobolbina trilobita, Mastigobolbina typus Plethobolbina typicalis ostracod Mastigobolbina punctata ostracod Mastigobolbina trilobita ostracod Mastigobolbina typus ostracod
Palaeocopida - Beyrichiidae	Dibolbina sp., Beyrichia aff. lakemontensis Dibolbina sp. Ulrich and Bassler 1923 ostracod Beyrichia aff. lakemontensis ostracod
Crinoidea
Monobathrida - Eucalyptocrinitidae	Eucalyptocrinites sp. Eucalyptocrinites sp. Goldfuss 1831 Sea lily
Pisocrinida - Pisocrinidae	Pisocrinus sp. Pisocrinus sp. de Koninck 1858 Sea lily