Split Lip Flats: Pu3, New Mexico

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Multituberculata
Ptilodontoidea indet. Sloan and Van Valen 1965
said to be new
Mammalia - Multituberculata - Neoplagiaulacidae
Mesodma sp. Jepsen 1940
Mammalia - Condylarthra - Hyopsodontidae
Tiznatzinia sp. Simpson 1936
Valenia sp. de Muizon and Cifelli 2000
Chacomylus sladei n. gen., n. sp. Williamson and Weil 2011
Williamson and Weil 2011
(7 measurements)
Mammalia - Cimolestidae
Cimolestidae indet. Marsh 1889
said to be new (2 measurements)
    = Betonnia tsosia Williamson et al. 2011
Williamson et al. 2011
L-4723
Cimolestes simpsoni (Reynolds 1936)
original and current combination Puercolestes simpsoni
(4 measurements)
? Cimolestidae indet. Marsh 1889
"Genus B" of Van Valen
    = Puercolestes simpsoni Reynolds 1936
Williamson et al. 2011
Mammalia - Groeberida
Thylacodon pusillus Matthew and Granger 1921
Williamson et al. 2012
NMMNH P-34808, right abraded m1; 38459, partial left M3, missing lingual portion of tooth, buccal to paracone and metacone and tooth distal to apex of metacone; 41142, right m1; 41199, right M3, missing portion of tooth on mesiobuccal corner and with abraded buccal margin; 51546, right abraded m2 or 3; 53303, right partial M2; 53929, right m1; 54382, right m2 or 3; 56649, left m2 or 3
Mammalia - Groeberida - Nototheriidae
Peradectes sp. Matthew and Granger 1921
said to be new
see common names

Geography
Country:United States State/province:New Mexico County:San Juan
Coordinates: 36.3° North, 108.2° West (view map)
Paleocoordinates:43.2° North, 87.3° West
Basis of coordinate:based on nearby landmark
Geographic resolution:small collection
Time
Period:Paleogene Epoch:Paleocene
Stage:Danian 10 m.y. bin:Cenozoic 1
*Period:Early/Lower Tertiary *Epoch:Early/Lower Paleocene
*Local age/stage:Late/Upper Puercan
Key time interval:Pu3
Age range of interval:66.00000 - 63.30000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Stratigraphic resolution:bed
Stratigraphy comments: "late Puercan" = Pu3 (Williamson and Weil 2010)
Lithology and environment
Primary lithology: not reported
Lithology description: none given
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Size of fossils:mesofossils
Collection methods and comments
Collection methods:bulk,sieve,field collection
Reason for describing collection:paleoecologic analysis
Collection method comments: methods include "underwater screening"
Metadata
Also known as:NMMNH L-4723; NMMNH L-4725; Head of Willow Wash
Database number:26575
Authorizer:J. Alroy, P. Mannion Enterer:J. Alroy, P. Mannion
Modifier:J. Alroy Research group:vertebrate
Created:2002-10-17 20:54:02 Last modified:2011-04-16 03:03:46
Access level:the public Released:2002-10-17 20:54:02
Creative Commons license:CC BY
Reference information

Primary reference:

7305. T. E. Williamson and A. Weil. 2002. A Late Puercan (Pu3) microfauna from the San Juan Basin, New Mexico. Journal of Vertebrate Paleontology 22(3):119A-120A [J. Alroy/J. Alroy/J. Alroy]

Secondary references:

43994 T. E. Williamson, S. L. Brusatte, T. D. Carr, A. Weil, and B. R. Standhardt. 2012. The phylogeny and evolution of Cretaceous–Palaeogene metatherians: cladistic analysis and description of new early Palaeocene specimens from the Nacimiento Formation, New Mexico. Journal of Systematic Palaeontology 10(4):625-651 [P. Mannion/P. Mannion]
35859 T. E. Williamson, A. Weil, and B. Standhardt. 2011. Cimolestids (Mammalia) from the early Paleocene (Puercan) of New Mexico. Journal of Vertebrate Paleontology 31(1):162-180 [J. Alroy/J. Alroy]
34668 T. E. Williamson and A. Weil. 2011. A new early Paleocene (Puercan) hyopsodontid “condylarth” from New Mexico. Acta Palaeontologica Polonica 56(2):247-255 [J. Alroy/J. Alroy/P. Mannion]