Ouachita Mountains collecting locality J (Cambrian of the United States)

Where: Arkansas (34.7° N, 93.0° W: paleocoordinates 22.3° S, 89.3° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Elvinia trilobite zone, Collier Shale Formation, Furongian (497.0 - 485.4 Ma)

• bed-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; lithified grainstone

• Not explicitly described but likely lime grainstone to mudstone, based on other localities

Size class: macrofossils

Primary reference: S. R. Hohensee and J. H. Stitt. 1989. Redeposited Elvinia Zone (Upper Cambrian) trilobites from the Collier Shale, Ouachita Mountains, west-central Arkansas. Journal of Paleontology 63(6):857-879 [M. Hopkins/M. Hopkins]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 229194: authorized by Melanie Hopkins, entered by Melanie Hopkins on 20.02.2023

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Trilobita
 Corynexochida - Cheilocephalidae
Cheilocephalus brachyops, Pseudokingstonia exotica
Cheilocephalus brachyops Palmer 1965 trilobite
Pseudokingstonia exotica Palmer 1965 trilobite
 Ptychopariida - Catillicephalidae
Buttsia cf. drabensis
 Ptychopariida - Phylacteridae
Aphelotoxon lumaleasa n. sp., Cliffia lataegenae, Cliffia magnacilis
Aphelotoxon lumaleasa n. sp. Hohensee and Stitt 1989 trilobite
Cliffia lataegenae Wilson 1949 trilobite
Cliffia magnacilis Hohensee and Stitt 1989 trilobite
 Ptychopariida - Elviniidae
Irvingella major, Elvinia roemeri
Irvingella major Ulrich and Resser 1924 trilobite
Elvinia roemeri trilobite
  - Nepeidae
Xenocheilos minutum
Xenocheilos minutum Wilson 1949 trilobite
 Olenida - Dokimokephalidae
Iddingsia hapsis, Pseudosaratogia lata, Kindbladia wichitaensis, Apachia genaitholix, Dellea suada
Iddingsia hapsis Hohensee and Stitt 1989 trilobite
Pseudosaratogia lata Wilson 1951 trilobite
Kindbladia wichitaensis Resser 1942 trilobite
Apachia genaitholix Hohensee and Stitt 1989 trilobite
Dellea suada Walcott 1890 trilobite
 Olenida - Pterocephaliidae
Pterocephalia sanctisabae, Pulchricapitus fetosus, Housia vacuna
Pterocephalia sanctisabae Roemer 1849 trilobite
Pulchricapitus fetosus Hohensee and Stitt 1989 trilobite
Housia vacuna Walcott 1890 trilobite
Artiopoda
 Agnostida - Agnostidae
Neoagnostus dilatus n. sp., Kymagnostus harti
Neoagnostus dilatus n. sp. Hohensee and Stitt 1989
Kymagnostus harti Hohensee and Stitt 1989