Locality 5, Hillyard's Canyon, Zone "B" (Ordovician of the United States)

Where: Franklin County, Idaho (42.1° N, 111.6° W: paleocoordinates 7.3° S, 81.8° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Bellefontia-Xenostegium trilobite zone, Lower Member (Garden City Formation), Gasconadian (485.4 - 477.7 Ma)

• 9 foot interval at 77 feet above base of formation. Zone B.

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified, massive, fine-grained, gray limestone

• "Massive, dark gray, fine-grained limestone, deposited with erosional unconformity on underlying beds."

Size class: macrofossils

Collected by R. J. Ross, Jr. in 1946-1947; reposited in the YPM

Primary reference: R. J. Ross, Jr. 1951. Stratigraphy of the Garden City Formation in northeastern Utah, and its trilobite faunas. Yale Peabody Museum of Natural History Bulletin 6:1-161 [S. Finnegan/S. Finnegan/M. Hopkins]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 103813: authorized by Melanie Hopkins, entered by Melanie Hopkins on 02.02.2011, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Aulacopleurida - Hystricuridae
"Hystricurus politus" = Politicurus politus, "Hystricurus genalatus" = Genalaticurus genalatus
"Hystricurus politus" = Politicurus politus Ross 1951 trilobite
"Hystricurus genalatus" = Genalaticurus genalatus Ross 1951 trilobite
 Ptychopariida - Kingstoniidae
Clelandia utahensis Ross 1951 trilobite
 Asaphida - Asaphidae
Bellefontia sp. Walcott 1924 trilobite
 Asaphida - Remopleurididae
Remopleuridiella caudalimbata Ross 1951 trilobite
Rhombifera
 Glyptocystitoida - Glyptocystitidae
Glyptocystitidae "New Genus B" Bather 1899
NOTE: This is a dummy until I can get the locality information (It's from Zone B of the Garden City in Idaho)