Trilobites of the Fitzhugh Member, Clarita Formation, Oklahoma (Silurian of the United States)

Where: Oklahoma (34.6° N, 96.4° W: paleocoordinates 25.6° S, 62.5° W)

• coordinate based on political unit

• local area-level geographic resolution

When: Fitzhugh Member (Clarita Formation), Wenlock (433.4 - 427.4 Ma)

• member-level stratigraphic resolution

Environment/lithology: deep subtidal ramp; shelly/skeletal grainstone and lime mudstone

• SEP environmental call based on given info and on Amsden (1968) JP 42 sup. to 3
• "pink to buff coloured biosparite and buff coloured biomicrite"

Primary reference: D. J. Holloway. 1980. Middle Silurian trilobites from Arkansas and Oklahoma, U.S.A. Palaeontographica Abteilung A 170(1-3):1-85 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 26021: authorized by Michael Foote, entered by Michael Foote on 30.09.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• Trilobites only.
Show authors, comments, and common names
Trilobita
 Phacopida - Dalmanitidae
Dalmanites ptyktorhion
 Phacopida - Cheiruridae
Cheirurus phollikodes n. sp., Sphaerexochus glaber
Cheirurus phollikodes n. sp. trilobite
Sphaerexochus glaber Holloway 1980 trilobite
 Proetida - Aulacopleuridae
Harpidella butorus
 Proetida - Tropidocoryphidae
Tropidocoryphinae indet., Decoroproetus anaglyptus, Decoroproetus corycoeus
Tropidocoryphinae indet. Pribyl 1946 trilobite
Decoroproetus corycoeus Conrad 1842 trilobite