Where: Millard County, Utah (38.8° N, 113.4° W: paleocoordinates 6.5° S, 85.3° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Fillmore Formation, Stairsian (485.4 - 478.6 Ma)

• Stratigraphically intermediate between "zone E" and "zone F" of Ross 1951, Hintze 1951, 52

Environment/lithology: shallow subtidal; lithology not reported

Size classes: macrofossils, mesofossils

Preservation: replaced with silica

Collected by J. M. Adrain, S. R. Westrop in the 1990s; reposited in the SUI

Collection methods: chemical,

Primary reference: J. M. Adrain, D.-C. Lee, S. R. Westrop, B. D. E. Chatterton, and E. Landing. 2003. Classification of the trilobite subfamilies Hystricurinae and Hintzecurinae subfam. nov. with new genera from the Lower Ordovician (Ibexian) of Idaho and Utah. Memoirs of the Queensland Museum 48(2):553-586 [M. Hopkins/M. Hopkins]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 106398: authorized by Melanie Hopkins, entered by Melanie Hopkins on 14.03.2011

Creative Commons license: CC BY (attribution)