Locality 6, Hillyard's Canyon, recollection of high "G(2)" zone (Ordovician of the United States)

Where: Franklin County, Idaho (42.1° N, 111.6° W: paleocoordinates 7.5° S, 80.8° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Protopliomerella contracta trilobite zone, Garden City Formation, Tulean (480.8 - 474.9 Ma)

• 770-775 feet above base of formation. Author states that 580 feet in remeasured section is roughly equivalent to 480 feet in section reported in Ross 1951. G2 Zone.

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithology not reported

• Based on description of Garden City Formation from Ross 1951

Size classes: macrofossils, mesofossils

Preservation: replaced with silica

Collected by R. J. Ross, Jr. in 1949; reposited in the YPM

Collection methods: chemical,

• New collection made from previously described locality (see Ross 1951).

Primary reference: R. J., J.r. Ross. 1953. Additional Garden City (Early Ordovician) trilobites. Journal of Paleontology 27(5):633-646 [M. Hopkins/M. Hopkins/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 105094: authorized by Melanie Hopkins, entered by Melanie Hopkins on 15.02.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

• Includes only new or redescribed trilobite taxa.
Show authors, comments, and common names
Trilobita
 Asaphida - Remopleurididae
Menoparia lunalata n. sp.
Menoparia lunalata n. sp. Ross 1953 trilobite
 Proetida - Bathyuridae
Licnocephala cavigladius, Licnocephala ovata n. sp.
Licnocephala cavigladius Hintze 1953 trilobite
Licnocephala ovata n. sp. Ross 1953 trilobite
 Proetida - Hystricuridae
Parahystricurus sp.
Parahystricurus sp. Ross 1951 trilobite