UCM locality 2011035 (Pu1) (Paleocene of the United States)

Where: Carbon County, Wyoming (41.7° N, 107.8° W)

• Paleocoordinates: 52.3° N, 72.7° W (Wright 2013)

• coordinate estimated from map

• small collection-level geographic resolution

When: China Butte Member (Fort Union Formation), Puercan (66.0 - 63.3 Ma)

• Pu1

•

•Great Divide Basin

•

•Approximately 46 m above the contact between the Lance and Fort Union formations

• bed-level stratigraphic resolution

Environment/lithology: "channel"; medium-grained, coarse, gray, white sandstone

• High-energy channel deposit

Size classes: macrofossils, mesofossils

Collected by James & Jeannine Honey, Malcolm McKenna in 2001-2011; reposited in the UCM

Collection methods: quarrying

Primary reference: K. M. McComas and J. J. Eberle. 2016. A new earliest Paleocene (Puercan) arctocyonid mammal from the Fort Union Formation, Great Divide Basin, Wyoming, and its phylogenetic position among early condylarths. Journal of Systematic Palaeontology 14(6):445-459 [P. Mannion/P. Mannion/P. Mannion]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 174233: authorized by Philip Mannion, entered by Philip Mannion on 06.11.2015

Creative Commons license: CC0 (CC0)

Taxonomic list

• To date, more than 350 mammalian fossils have been recovered from the site
Show authors, comments, and common names
Mammalia
 Multituberculata - Neoplagiaulacidae
Mesodma ambigua
Mesodma ambigua Jepsen 1940 multituberculate
 Tribosphenida - Periptychidae
Beornus honeyi n. gen. n. sp., Ampliconus antoni, Conacodon hettingeri n. sp., Conacodon harbourae, Miniconus jeanninae n. sp.
Beornus honeyi n. gen. n. sp. Atteberry and Eberle 2021 condylarth
UCM 103183 - type
Ampliconus antoni Eberle and Lillegraven 1998 condylarth
UCM 103150 and 103151
Conacodon hettingeri n. sp. Atteberry and Eberle 2021 condylarth
UCM 103374 - type
Conacodon harbourae Eberle and Lillegraven 1998 condylarth
UCM 103085, 103155 and 108749
Miniconus jeanninae n. sp. Atteberry and Eberle 2021 condylarth
UCM 103181 - type; hypodigm: UCM 103171 and 103084
 Procreodi - Arctocyonidae
Maiorana noctiluca, Oxyprimus sp., Mimatuta sp., Sigynorum magnadivisus n. gen. n. sp., Sigynorum cf. magnadivisus, Protungulatum donnae
Maiorana noctiluca Van Valen 1978 condylarth
UCM 103093, 103130, 103131, 103147, 103158 and 103167
Oxyprimus sp. Van Valen 1978 condylarth
Mimatuta sp. Van Valen 1978 condylarth
Sigynorum magnadivisus n. gen. n. sp. McComas and Eberle 2016 condylarth
UCM 103133 - holotype (right mandible with p4m3, alveoli p1p3); Hypodigm. UCM 103086, right mandible with m23, m1 partial, alveoli p14; UCM 103088, right mandible with m2, alveoli c1m1, m3; UCM 103089, right mandible with m13, alveoli c1p4; UCM 103092, left mandible with p4m1, m2 partial, alveoli c1p3; UCM 103128, left mandible with m23, alveolus m1; UCM 103137, right mandible with p4m3; UCM 103139, left mandible with m13, broken p4, alveoli c1p3; UCM 103142, right mandible with p4m2; UCM 103154, left mandible with p4m3, alveoli p13; UCM 103159, right mandible with p2, p4m2, alveoli c1p1, p3, m3; UCM 103175, left mandible with worn p4m2, alveoli c1p3, m3 roots; UCM 103292, isolated left p4; UCM 103330, isolated right m2; UCM 103339, isolated left m3; UCM 108714, left mandible with m2m3, m1 partial; UCM 108715, left mandible with m3, m2 sheared; and UCM 108734, isolated left m3
Sigynorum cf. magnadivisus McComas and Eberle 2016 condylarth
UCM 103140, right mandible with p4-m3, alveoli c1p3; and UCM 103168, right mandible with partial m1m3
Protungulatum donnae Sloan and Van Valen 1965 condylarth