Where: Big Horn County, Montana (45.1° N, 106.9° W: paleocoordinates 44.1° N, 64.8° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Himes Member (Cloverly Formation), Middle Albian to Middle Albian (109.0 - 93.5 Ma)

• "base of Unit VII"

•

•D'Emic et al. 2019: New data reported in this study suggest that deposition of the Cloverly Formation spanned the Valanginian–Cenomanian stages (ca. 140 Ma–98 Ma), a longer time interval than the commonly cited Aptian–Albian depositional timeframe. In the mid–late Albian to early Cenomanian (ca. 109–98 Ma), sediment sourced from the east was deposited as the Himes Member and Greybull Sandstone.

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: mesofossils

Collected by S. K. Madsen in 1997

Collection methods: bulk,

• no taxa other than lizards are described (edit: but see Cifelli and Davis 2015)

Primary reference: R. L. Nydam and R. L. Cifelli. 2002. Lizards from the Lower Cretaceous (Aptian-Albian) Antlers and Clovery formations. Journal of Vertebrate Paleontology 22(2):286-298 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 23502: authorized by John Alroy, entered by John Alroy on 15.07.2002, edited by Jonathan Tennant and Matthew Carrano

Creative Commons license: CC BY (attribution)