Kutz Canyon (UALP 7897) (Paleocene of the United States)

Where: San Juan County, New Mexico (36.3° N, 108.2° W: paleocoordinates 42.9° N, 88.3° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Nacimiento Formation, Torrejonian (63.3 - 61.7 Ma)

• show by Tomida as near the top of a normal zone, but near the middle of a normal magnetic polarity zone in the Kutz Canyon section interpreted as C28n based on the position of the K-T boundary in the correlative Barrel Spring Arroyo = De-na-zin Wash section: see Butler et al. 1977, Lucas et al. 1997

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial

Primary reference: Y. Tomida. 1981. "Dragonian" fossils from the San Juan Basin and status of the "Dragonian" Land Mammal "age". In S. G. Lucas, J. K. Rigby Jr., B. S. Kues (eds.), Advances in San Juan Basin Paleontology 222-241 [J. Alroy/J. Alroy/M. Uhen]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 14862: authorized by John Alroy, entered by John Alroy on 18.02.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

• appears to be the "Lower Kutz Canyon" fauna of Archibald et al. 1987, said to be To0
more precise than the list given by Taylor 1981
Mammalia
 Theriamorpha - Phenacodontidae
Tetraclaenodon puercensis2 Cope 1881 condylarth
from NMMNH 2660, "approximately equivalent" to UALP 7897 and 7899
 Theriamorpha - Viverravidae
Protictis cf. haydenianus Cope 1882 placental
 Acreodi - Triisodontidae
Triisodon cf. quivirensis1 Cope 1881 placental
 Condylarthra - Hyopsodontidae
cf. Mioclaenus turgidus Cope 1881 condylarth