Pentamerus community, Fossil Hill and Irondequoit Fms. (Silurian of Canada)

Where: Ontario, Canada (43.0° N, 79.3° W: paleocoordinates 24.2° S, 48.2° W)

• coordinate based on political unit

When: Cycles V, VI zone, Llandovery (443.4 - 433.4 Ma)

• "Fossil Hill and Irondequoit Fms. Lower Sil. upper Lland., cycles V and VI"

• group-level stratigraphic resolution

Environment/lithology: marine; dolomite

• "dolomite; crinoidal ls."

Size class: macrofossils

Primary reference: T. E. Bolton. 1957. Silurian stratigraphy and palæontology of the Niagara escarpment in Ontario. Geological Survey of Canada Memoir 289:1-145 [P. Wagner/P. Wagner/J. Ju]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 461: authorized by Jack Sepkoski, entered by Mike Sommers on 15.12.1998

Creative Commons license: CC BY (attribution)

Taxonomic list

• "Ziegler et al. 1971 unpublished. Bolton 1957."
unclassified
  -
Stromatoporoidea
 Clathrodictyida - Clathrodictyidae
Clathrodictyon sp. Nicholson and Murie 1878 stromatoporoid sponge
Anthozoa
 Stauriida - Amplexidae
Amplexus sp. Sowerby 1814 horn coral
 Stauriida - Arachnophyllidae
Arachnophyllum sp. Dana 1846 horn coral
3 species
 Stauriida - Streptelasmatidae
Enterolasma sp. Simpson 1900 horn coral
 Stauriida - Zaphrentidae
"Zaphrentis sp." = Zaphrenthis
"Zaphrentis sp." = Zaphrenthis Rafinesque and Clifford 1820 horn coral
 Stauriida - Ptychophyllidae
Ptychophyllum sp. Milne-Edwards and Haime 1850 horn coral
2 species
 Auloporida - Syringoporidae
Syringopora sp. Goldfuss 1826 tabulate coral
3 species
 Heliolitida - Halysitidae
Catenipora sp. Lamarck 1816 tabulate coral
Halysites sp. von Waldheim 1813 tabulate coral
3 species
 Heliolitida - Coccoserididae
Protaraea sp. Milne-Edwards and Haime 1851 tabulate coral
 Heliolitida - Heliolitidae
Heliolites sp. Dana 1846 tabulate coral
 Favositida - Favositidae
Favosites sp. Lamarck 1816 tabulate coral
3 species
 Favositida - Pachyporidae
Striatopora sp. Hall 1851 tabulate coral
 Favositida - Alveolitidae
Alveolites sp. Lamarck 1801 tabulate coral
Cephalopoda
 Orthocerida - Orthoceratidae
Leurocycloceras sp. Foerste 1928
Michelinoceras sp. Foerste 1932
2 species
 Orthocerida - Kionoceratidae
Kionoceras sp. Hyatt 1884
 Barrandeocerida - Lechritrochoceratidae
Leurotrochoceras sp. Foerste 1926
Rhynchonellata
 Rhynchonellida - Trigonirhynchiidae
Rhynchotreta sp. Hall 1879
 Orthida - Hesperorthidae
Dolerorthis sp. Schuchert and Cooper 1931
 Orthida - Dalmanellidae
"Parmorthis sp." = Resserella
"Parmorthis sp." = Resserella Bancroft 1928
 Atrypida - Atrypidae
Atrypa sp. Dalman 1828
 Pentamerida - Pentameridae
Pentamerus sp. Sowerby 1813
 Spiriferida - Cyrtiidae
Eospirifer sp. Schuchert 1913
 Spiriferida - Delthyrididae
Howellella sp. Kozlowski 1946
 Athyridida - Meristellidae
Whitfieldella sp. Hall and Clarke 1893
Crinoidea
  -
Crinoidea indet. Miller 1821 Sea lily
crinoids
Rhombifera
 Hemicosmitoida - Caryocrinitidae