Trilobites of bryozoan-rich bioherm flank beds, Hopkinton Dolo.,Clinton Co. (Silurian of the United States)

Also known as Reef 3267

Where: Iowa (42.0° N, 90.7° W: paleocoordinates 20.4° S, 56.5° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Hopkinton Dolomite Formation, Llandovery (443.4 - 433.4 Ma)

• formation-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; dolomite

• Bryozoan-rich flank beds of the Bioherm Beds of the Hopkinton Dolomite

Collection methods: Percent abundances given for trilobites. Flank beds said to be bryozoan-rich.

Primary reference: D. G. Mikulic. 1981. Trilobites in Paleozoic carbonate buildups. Lethaia 14(1):45-56 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 24946: 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
 Odontopleurida - Odontopleuridae
Ceratocephala sp., Dudleyaspis sp., Acidaspis sp.
Ceratocephala sp. Warder 1838 trilobite
Dudleyaspis sp. Prantl and Pribyl 1949 trilobite
Acidaspis sp. Murchison 1839 trilobite
 Phacopida - Cheiruridae
Deiphon sp., Cheirurus sp.
Deiphon sp. Barrande 1846 trilobite
Cheirurus sp. Beyrich 1845 trilobite
 Phacopida - Calymenidae
Calymene sp.
Calymene sp. Brongniart 1822 trilobite
 Corynexochida - Styginidae
Scutelluidae indet.
Scutelluidae indet. Richter and Richter 1955 trilobite
 Corynexochida - Illaenidae
Stenopareia sp.
Stenopareia sp. Holm 1886 trilobite
 Proetida - Proetidae
Proetidae indet.
Proetidae indet. Salter 1864 trilobite
 Proetida - Otarionidae
? Otarion sp.
? Otarion sp. Zenker 1833 trilobite
 Lichida - Lichidae
Arctinurus sp., Dicranopeltis sp.
Arctinurus sp. Castelnau 1843 trilobite
Dicranopeltis sp. Hawle and Corda 1847 trilobite