Trilobites of the Arctinurus boltoni Assoc., Lewiston Mbr. of the Rochester Sh. (Silurian of the United States)

Where: New York (43.0° N, 79.0° W: paleocoordinates 27.1° S, 44.8° W)

• coordinate based on political unit

• local area-level geographic resolution

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

• member-level stratigraphic resolution

Environment/lithology: offshore; mudstone

• "...association assigned to BA 3 based on its occurrence with the Howellella Community...It is present with abundant and diverse bryozoans, brachiopods and other taxa in mudstones, which were deposited under low energy,below wavebase conditions. Trilobites disarticulated and scattered, although some...may be articulated."

•

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

• " mudstone"

Collection methods: Other taxa not listed include brachiopods and bryozoans.

Primary reference: D. G. Mikulic. 1999. Silurian trilobite associations in North America. In A. J. Boucot and J. D. Lawson (eds.), Paleocommunities--a case study from the Silurian and Lower Devonian 793-798 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 24941: authorized by Michael Foote, entered by Michael Foote on 23.08.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Trilobita
 Phacopida - Dalmanitidae
Dalmanites limulurus
 Phacopida - Homalonotidae
Trimerus delphinocephalus
 Phacopida - Calymenidae
Calymene niagarensis
Calymene niagarensis Hall 1843 trilobite
 Phacopida - Cheiruridae
Deiphon sp.
Deiphon sp. Barrande 1846 trilobite
 Lichida - Lichidae
Arctinurus boltoni
Arctinurus boltoni Bigsby 1825 trilobite
 Corynexochida - Illaenidae
Bumastus sp.
Bumastus sp. Murchison 1839 trilobite
 Corynexochida - Styginidae
Illaenoides sp.
Illaenoides sp. Weller 1907 trilobite