Stinking Springs, SMU Loc. 252: Norian, Arizona

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Amphibia - Temnospondyli
Temnospondyli indet. von Zittel 1887
Three morphotypes
Amphibia - Temnospondyli - Metoposauridae
Buettneria sp. Case 1922
synonym of Anaschisma
Apachesaurus sp. Hunt 1993
Reptilia
Reptilia indet. Laurenti 1768
Trilophosaurus jacobsi Murry 1987
Neodiapsida indet. Benton 1985
Dermal armour and skeletal remains
    = Vancleavea campi Long and Murry 1995
Hunt et al. 2002
Archosauria indet. (Cope 1869)
Teeth that may be referable to theropod dinosaurs or poposaurs, skeletal elements and scutes
cf. Parrishia sp. Long and Murry 1995
nomen dubium belonging to Archosauria
Ornithischia indet. (Seeley 1888)
Reptilia - Coelophysidae
? Coelophysidae indet. Paul 1988
Reptilia
? Ceratosauria indet. (Marsh 1884)
Reptilia - Parasuchidae
Phytosauridae indet. Jaeger 1828
replaced by Mystriosuchinae
Femur and jaw fragment
Reptilia - Shuvosauridae
Chatterjeea elegans Long and Murry 1995
Heckert et al. 2005
synonym of Shuvosaurus inexpectatus
Reptilia
cf. Hesperosuchus sp. Colbert 1952
    = Hesperosuchus agilis Colbert 1952
Heckert et al. 2005
Postosuchus kirkpatricki Chatterjee 1985
Heckert et al. 2005
Poposaurus gracilis Mehl 1915
Heckert et al. 2005
Revueltosaurus sp. Hunt 1989
    = Revueltosaurus callenderi Hunt 1989
Heckert et al. 2005
Stagonolepis wellesi (Long and Ballew 1985)
original and current combination Calyptosuchus wellesi
Acaenasuchus geoffreyi Long and Murry 1995
? Lepidosauromorpha indet. (Benton 1983)
Reptilia - Sphenodontidae
Sphenodontidae indet. Cope 1871
Reptilia - Procolophonidae
Procolophonidae indet. Lydekker 1889
unclassified
? Cynodontia indet. (Owen 1861)
3 specimens
Tricuspid teeth belonging to cynodont or possibly a pterosaur
Dipnoi - Ceratodontidae
Ceratodontidae indet. Gill 1872
Coelacanthimorpha - Coelacanthiformes - Mawsoniidae
cf. Chinlea sp. Schaeffer 1967
Pholidopleuriformes - Pholidopleuridae
cf. Australosomus sp. Pivetau 1930
Palaeonisciformes - Redfieldiidae
Redfieldiidae indet. Hutchinson 1973
Palaeonisciformes - Palaeoniscidae
cf. Turseodus sp. Leidy 1857
Actinopteri - Perleidiformes - Colobodontidae
Colobodontidae indet. Stensiö 1916
Actinopteri - Semionotiformes - Semionotidae
Semionotidae indet. Woodward 1890
Chondrichthyes - Xenacanthiformes - Xenacanthidae
Xenacanthus moorei (Woodward 1889)
recombined as Triodus moorei
originally entered as "Xenacanthas moorei"
Chondrichthyes - Hybodontiformes - Lonchidiidae
Lissodus humblei (Murry 1981)
original and current combination Lonchidion humblei
Chondrichthyes - Hybodontiformes - Acrodontidae
Acrodus sp. Agassiz 1834
Heckert et al. 2005
see common names

Geography
Country:United States State/province:Arizona County:Apache
Coordinates: 34.7° North, 109.6° West (view map)
Paleocoordinates:10.3° North, 48.2° West
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period:Triassic Epoch:Late/Upper Triassic
Stage:Norian 10 m.y. bin:Triassic 4
Key time interval:Norian
Age range of interval:227.00000 - 208.50000 m.y. ago
Stratigraphy
Formation:Chinle Member:Blue Mesa
Stratigraphic resolution:bed
Stratigraphy comments: Blue Mesa Member, approximately 10-20 metres above the contact with the underlying Mesa Redondo Member

Kent et al. 2019: Kent et al. 2019: Blue Mesa member lies between magneto zones PF5r to PF8n (approximately 221.75–216.97Ma)
Lithology and environment
Primary lithology:gray,blue mudstone
Secondary lithology:paleosol/pedogenic,nodular,white sandstone
Includes fossils?Y
Lithology description: "bluish-gray mudstone, which is laterally extensive. The microvertebrate concentration is restricted to several square metres. The producing layer lies about 1 meter below the contact of the mudstone with an overlying white sandstone unit. Pedogenic carbonate concretions are absent within the unit but are present at the base of the ovrlying sandstone. No evidence of soil formation exists within the bluish-gray mudstone unit, but burrows are present above the productive layer"
Environment:fluvial-lacustrine indet.
Geology comments: "low energy aquatic environment"
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Preservation of anatomical detail:good
Abundance in sediment:common
Disassociated major elements:many
Disassociated minor elements:many
Fragmentation:frequent
Spatial resolution:allochthonous
Collection methods and comments
Collection methods:bulk,selective quarrying,surface (float),sieve,field collection
Rock censused:231 kg
Reason for describing collection:general faunal/floral analysis
Collection method comments: SMU: Southern Methodist University
Metadata
Database number:92850
Authorizer:R. Butler, P. Mannion Enterer:R. Butler, J. Tennant
Modifier:G. Varnham Research group:vertebrate
Created:2009-12-02 06:01:51 Last modified:2022-01-21 10:20:38
Access level:the public Released:2009-12-02 06:01:51
Creative Commons license:CC BY
Reference information

Primary reference:
31343. M. J. Polcyn, D. A. Winkler, L. L. Jacobs and K. Newman. 2002. Fossil occurrences and structural disturbance in the Triassic Chinle Formation at North Stinking Springs Mountain near St. Johns, Arizona. In A. B. Heckert, S. G. Lucas (eds.), Upper Triassic Stratigraphy and Paleontology, New Mexico Museum of Natural History and Science Bulletin 21:43-49 [R. Butler/R. Butler]

Secondary references:

46019 A. B. Heckert, S. G. Lucas, and A. P. Hunt. 2005. Triassic vertebrate fossils in Arizona. Vertebrate Paleontology in Arizona. New Mexico Museum of Natural History and Science Bulletin 29:16-44 [P. Mannion/J. Tennant]
31344 A. P. Hunt, A. B. Heckert, S. G. Lucas and A. Downs. 2002. The distribution of the enigmatic reptile Vancleavea in the Upper Triassic Chinle Group of the western United States. In A. B. Heckert, S. G. Lucas (eds.), Upper Triassic Stratigraphy and Paleontology, New Mexico Museum of Natural History and Science Bulletin 21:269-273 [R. Butler/R. Butler]
79159 D. V. Kent, P. E. Olsen, C. Lepre, C. Rasmussen, R. Mundil, G. E. Gehrels, D. Giesler, R. B. Irmis, J. W. Geissman and W. G. Parker. 2019. Magnetochronology of the Entire Chinle Formation (Norian Age) in a Scientific Drill Core From Petrified Forest National Park (Arizona, USA) and Implications for Regional and Global Correlations in the Late Triassic. Geochemistry, Geophysics, Geosystems [P. Mannion/G. Varnham]
31632 W. G. Parker. 2005. Faunal review of the Upper Triassic Chinle Formation of Arizona. In R. D. McCord (ed.), Vertebrate Paleontology of Arizona, Mesa Southwest Museum Bulletin 11:34-54 [R. Butler/R. Butler]