Mammal Quarry No. 8 (Cretaceous of the United States)

Also known as Lance Quarry 8, Lull's Locality 8, Hatcher No. 8

Where: Niobrara County, Wyoming (43.0° N, 104.5° W: paleocoordinates 49.5° N, 79.4° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Lance Formation, Lancian (70.6 - 66.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: mesofossils

Collected by J. B. Hatcher in 1889; reposited in the YPM

Primary reference: R. S. Lull. 1915. The mammals and horned dinosaurs of the Lance Formation of Niobrara County, Wyoming. The American Journal of Science, series 4 40(238):319-348 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 14590: authorized by John Alroy, entered by John Alroy on 15.05.2002, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Multituberculata - Cimolomyidae
"Meniscoessus robustus" = Meniscoessus robustus, "? Oracodon anceps" = Meniscoessus robustus
"Meniscoessus robustus" = Meniscoessus robustus Marsh 1889 multituberculate
"? Oracodon anceps" = Meniscoessus robustus Marsh 1889 multituberculate
 Multituberculata - Neoplagiaulacidae
"Halodon formosus" = Mesodma formosa
"Halodon formosus" = Mesodma formosa Marsh 1889 multituberculate
 Cimolesta - Cimolestidae
Cimolestes incisus Marsh 1889 eutherian
 Theriamorpha - Stagodontidae
Didelphodon sp. Marsh 1889 metatherian
? Didelphodon comptus Marsh 1889 metatherian
Actinopteri
 Acanthomorphata - Sciaenidae
Platacodon nanus Marsh 1889