Also known as LACM 5406, UALP 7782, 7783
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 (63.8 - 60.9 Ma)
• two UALP localities are separated stratigraphically by seven meters; LACM 5406 apparently at a very similar level, but may be from Kimbetoh Arroyo: see Williamson and Lucas 1993
•near the top of the local section in a normal paleomag interval that is probably chron 27n but could be chron 28n, because there are anomalies such as normal polarization at the Ojo Alamo-Nacimiento contact and only one, very short reversed zone between that point and the fauna
• group of beds-level stratigraphic resolution
Environment/lithology: terrestrial
Reposited in the LACM
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 14888: authorized by John Alroy, entered by John Alroy on 27.09.1993
Creative Commons license: CC BY (attribution)
Taxonomic list
"3 km northeast" of and stratigraphically above Mammalon Hill
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Loxolophus sp.1 Cope 1885 condylarth possibly their L. faulkneri; "L. sp." of Middleton 1983; "cf. Loxolophus kimbetovius" of Tomida; from UALP 7782; Eberle and Lillegraven do not seem to be aware that this was identified as "Deuterogonodon ? noletil" by Williamson and Lucas 1993
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