Kutz Canyon (Nine UALP Locs) (Paleocene of the United States)

Also known as UALP 75106 (Taylor Mound), 75140, 7640 (Larry's Beaucoup), 7641, 7643, 7644, 7660, 7662, 7778

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)

• not far below the middle of a reversed magnetic polarity zone in the Kutz Canyon section interpreted as C27r 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

Environment/lithology: terrestrial

Primary reference: L. H. Taylor. 1981. The Kutz Canyon Local Fauna, Torrejonian (Middle Paleocene) of the San Juan Basin, New Mexico;. In S. G. Lucas, J. K. Rigby Jr., B. S. Kues (eds.), Advances in San Juan Basin Paleontology 242-263 [J. Alroy/J. Alroy/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 14868: authorized by John Alroy, entered by John Alroy on 18.02.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

• reversed polarity, as is most of section, but correlation to chron 27R is based strictly on biochronology
Mammalia
 Cimolesta - Cimolestidae
Acmeodon secans Matthew and Granger 1921 eutherian
 Cimolesta - Pentacodontidae
Coriphagus encinensis Matthew and Granger 1921 eutherian
 Primates - Palaechthonidae
Torrejonia cf. wilsoni Gazin 1968 primate
 Ferae - Viverravidae
Protictis sp. Matthew placental
said to be new: not clear if there are two or three forms
 Taeniodonta - Conoryctidae
Conoryctella pattersoni Schoch and Lucas 1981 taeniodont
 Taeniodonta - Stylinodontidae
Psittacotherium multifragum Cope 1882 taeniodont
 Tribosphenida - Arctocyonidae
Deuterogonodon noletil Van Valen 1978 condylarth
"Mimotricentes subtrigonus" = Tricentes subtrigonus Cope 1881 condylarth
Chriacus baldwini Cope 1882 condylarth
Chriacus pelvidens Cope 1881 condylarth
 Ungulata - Hyopsodontidae
Hyopsodontidae indet. Trouessart 1879 condylarth
said to be a new genus: said by Williamson and Lucas 1993 to be from both UALP 7640 and UALP 7643
"Promioclaenus lemuroides" = Ellipsodon lemuroides Matthew 1897 condylarth
Mioclaenus sp. Cope 1881 condylarth
"Protoselene opisthacus" = Mioclaenus opisthacus Cope 1882 condylarth
Promioclaenus acolytus Cope 1882 condylarth
 Ungulata - Periptychidae
Periptychus carinidens Cope 1881 condylarth
Anisonchus sectorius Cope 1881 condylarth
 Ungulata - Phenacodontidae
Tetraclaenodon puercensis Cope 1881 condylarth
 Insectivora - Mixodectidae
Mixodectes malaris Cope 1884 insectivoran
 Acreodi - Triisodontidae
Triisodon sp. Cope 1881 eutherian
 Acreodi -
Microclaenodon assurgens Cope 1884 eutherian
 Hyaenodonta -
Deltatherium fundaminis Cope 1881 eutherian
 Multituberculata - Eucosmodontidae
Eucosmodon sp. Matthew and Granger 1921 multituberculate