Fistuliporid Bryozoan Bioherm Community, Irondequoit Lst, Genesee Gorge (Silurian of the United States)

Also known as Reef 3257

Where: New York (43.2° N, 77.6° W: paleocoordinates 26.7° S, 44.5° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Cyrtograptus murchisoni graptolite zone, Irondequoit Limestone Formation, Sheinwoodian (433.4 - 430.5 Ma)

• Age based on correlation chart, Fig. 44.2. Upper beds of this formation. Community also found in lowermost Rochester Shale.

• member-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; bindstone

• "...shallow, euphotic settings...at distinct horizons...These appear to represent marine flooding surfaces associated with rapid sea level rise and relative sediment starvation. BA 3"
• "consists of small mounds of laminate fistuliporid bryozoans with a large component of structureless micrite, possibly algal boundstone

Size class: macrofossils

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 26866: authorized by Michael Foote, entered by Michael Foote on 06.11.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• Brachiopods and other elements closely associated with mounds, but only those taxa actually in the mounds per se appear to be listed here.
Show authors, comments, and common names
Trilobita
 Corynexochida - Illaenidae
Bumastus sp.
Bumastus sp. Murchison 1839 trilobite
 Phacopida - Calymenidae
Calymene sp.
Calymene sp. Brongniart 1822 trilobite
Stenolaemata
 Cryptostomata - Rhinoporidae
Lichenalia sp.
Lichenalia sp. Hall 1851
 Trepostomata -
Trepostomata indet.
Trepostomata indet. Ulrich 1882
 Cystoporata - Fistuliporidae
Fistulipora sp.
Fistulipora sp. McCoy 1850
Rhynchonellata
 Athyridida - Meristellidae
Whitfieldella sp.
Whitfieldella sp. Hall and Clarke 1893
 Atrypida - Atrypidae
Atrypa sp.
Atrypa sp. Dalman 1828
Cephalopoda
 Nautiloidea -
Nautiloidea indet.
Nautiloidea indet. Agassiz 1847 nautiloid
unclassified
  -
Echinodermata indet.
Echinodermata indet. Klein 1754
disarticulated pelmatozoans
Blastoidea
 Coronata - Stephanocrinidae
Cupulocorona gemmiformis
Cupulocorona gemmiformis Hall 1872 blastoid
Crinoidea
 Monobathrida - Eucalyptocrinitidae
Eucalyptocrinites sp.
Eucalyptocrinites sp. Goldfuss 1831 Sea lily
Algae
 Algae -
Algae indet.