Sargent Ranch, SMP Loc. 450: Late/Upper Campanian, New Mexico

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia
Stegoceras novomexicanum n. sp. Jasinski and Sullivan 2011
1 specimen
SMP VP-2555
Reptilia - Hadrosauridae
Hadrosauridae indet. Cope 1869
Sullivan and Lucas 2014 22 specimens
SMP VP-2409, 2552, 2560, 2563, 2587, 2636, 2641, 2684, 2688, 2690, 2705, 2708, 2730, 2763, 2767, 2776, 2800, 2833, 2838, 2863, 3367, 3379
Reptilia - Testudines
Testudines indet. Batsch 1788
Sullivan et al. 2012 6 specimens
SMP VP-2549 five carapace fragments, SMP VP-2643 plastron fragment, SMP VP-2768 distal end of humerus, SMP VP-2777 ?limb osteoderm, SMP VP-2795 incomplete ?humerus, SMP VP-3382 two plastron fragments
Reptilia - Testudines - Adocidae
cf. Adocus sp. Cope 1868
Sullivan et al. 2012 4 specimens
SMP VP-2578 neural, SMP VP-2841 carapace fragment & associated indeterminate bone material, SMP VP-2856 incomplete costal & other carapace fragments, SMP VP-2802 costal marginal & other carapace fragments
Reptilia - Testudines - Trionychidae
Trionychidae indet. Gray 1825
Sullivan et al. 2012 14 specimens
SMP VP-2388 carapace fragments, SMP VP-2403 carapace & plastron fragments from multiple individuals, SMP VP-2404 carapace fragments, SMP VP-2442 carapace fragments from multiple taxa, SMP VP-2551 carapace fragment, SMP VP-2586 carapace fragment, SMP VP-2635 carapace fragment, SMP VP-2728 carapace fragments, SMP VP-2764 incomplete costal, SMP VP-2766 carapace fragments, SMP VP-2772 incomplete neural, SMP VP-2839 carapace fragments, SMP VP-2847 carapace fragments, SMP VP-2852 carapace fragments & associated indet. bone material
Reptilia - Testudines
cf. Aspideretoides sp. Gardner et al. 1995
Sullivan et al. 2012 1 specimen
SMP VP-2803 costal marginal & other carapace fragments
Reptilia - Testudines - Nanhsiungchelyidae
Basilemys cf. gaffneyi Sullivan et al. 2012
Sullivan et al. 2012 2 specimens
SMP VP-2797 epeiplastron, SMP VP-3366 partial plastron fragments of femur pelvic girdle & carapace/plastron
Reptilia - Baenidae
Baenidae indet. Cope 1882
Sullivan et al. 2012 3 specimens
SMP VP-2644 nearly complete femur, SMP VP-2706 incomplete costal & plastron fragments, SMP VP-2721 carapace & plastron fragments plus associated indet. bone material
cf. Denazinemys nodosa (Gilmore 1916)
Sullivan et al. 2012 1 specimen
SMP VP-2853 carapace fragments
see common names

Geography
Country:United States State/province:New Mexico County:San Juan
Coordinates: 36.1° North, 107.8° West (view map)
Paleocoordinates:43.3° North, 79.2° West
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Campanian 10 m.y. bin:Cretaceous 7
Key time interval:Late/Upper Campanian
Age range of interval:83.60000 - 72.10000 m.y. ago
Stratigraphy
Formation:Fruitland Member:Fossil Forest
Stratigraphic resolution:member
Lithology and environment
Primary lithology: lithified "shale"
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Fragmentation:frequent
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Metadata
Also known as:Target 8
Database number:144519
Authorizer:G. Lloyd, D. Nicholson, M. Carrano Enterer:G. Lloyd, M. Carrano, D. Nicholson
Modifier:P. Mannion Research group:vertebrate
Created:2013-05-10 00:46:22 Last modified:2021-02-17 10:33:20
Access level:the public Released:2013-05-10 00:46:22
Creative Commons license:CC BY
Reference information

Primary reference:

46742. S. E. Jasinski and R. M. Sullivan. 2011. Re-evaluation of pachycephalosaurids from the Fruitland-Kirtland transition (Kirtlandian, late Campanian), San Juan Basin, New Mexico, with a description of a new species of Stegoceras and a reassessment of Texacephale langstoni. In R. M. Sullivan, S. G. Lucas, & J. A. Spielmann (eds.), Fossil Record 3. New Mexico Museum of Natural History and Science Bulletin 53:202-215 [G. Lloyd/G. Lloyd/M. Carrano]

Secondary references:

50161 R. M. Sullivan, S. E. Jasinski, and S. G. Lucas. 2012. Re-assessment of Late Campanian (Kirtlandian) turtles from the Upper Cretaceous Fruitland and Kirtland formations, San Juan Basin, New Mexico, USA. In D. B. Brinkman, P. A. Holroyd, J. D. Gardner (eds.), Morphology and Evolution of Turtles 337-387 [D. Nicholson/D. Nicholson/P. Holroyd]
55658 R. M. Sullivan and S. G. Lucas. 2014. Stratigraphic distribution of hadrosaurids in the Upper Cretaceous Fruitland, Kirtland, and Ojo Alamo formations, San Juan Basin, New Mexico. In D. A. Eberth & D. C. Evans (ed.), Hadrosaurs 361-384 [M. Carrano/M. Carrano]