Locality KA Quarry site: Kungurian, Texas

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Chondrichthyes - Xenacanthiformes - Xenacanthidae
Xenacanthus sp. Beyrich 1848
Reptilia - Captorhinidae
Captorhinus aguti (Cope 1882)
Fox and Bowman 1966
CNHM UR 119
Labidosaurikos barkeri Olson 1954
synonym of Labidosaurikos meachami
Captorhinikos valensis n. gen., n. sp. Olson 1954
Olson 1954
FMNH UR 101 (type), 102-104, 2496
Sphenacodontidae
Dimetrodon gigashomogenes Case 1907
corrected as Dimetrodon giganhomogenes
see common names

Geography
Country:United States State/province:Texas County:Knox
Coordinates: 33.7° North, 99.6° West (view map)
Paleocoordinates:2.4° North, 29.0° West
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period:Permian Epoch:Cisuralian
Stage:Kungurian 10 m.y. bin:Permian 2
Key time interval:Kungurian
Age range of interval:283.50000 - 273.01000 m.y. ago
Stratigraphy
Geological group:Clear Fork Formation:Vale Member:"Bullwagon"
Stratigraphic resolution:member
Stratigraphy comments: "Robert Roth, of the Humble Oil and Refining Company of Wichita Falls, Texas, believes that surface and subsurface data show that the beds in question are part of the 'Bullwagon' member of the Vale formation. This places the section high in the Vale, just below the Choza." Olson (1948 p. 190);
the base and top of the Clear Fork Group (i.e., Arroyo, Vale, and Choza formations) are both within the Kungurian: see Wardlaw 2005 (Permophiles) for the base, and DiMichele et al. 2001 (J Paleont) for the top
Lithology and environment
Primary lithology:pebbly,green,red conglomerate
Includes fossils?Y
Lithology description: "The channel fill is largely clay pebble conglomerate, with pebbles ranging from a few millimeters to about 8 cm. in diameter. Rounding of the pebbles is uniformly high, but sphericity is varied. [...] The coarsest material tend to lie at the center of the channel, whereas the marginal parts are predominantly sand or clay with fine scattered pebbles." Olson (1948, p. 191)
Environment:coarse channel fill Tectonic setting:foreland basin
Geology comments: "The channels are evidence that a rather large, braided stream passed north or south over the area in a valley of considerable width. The region must have had a moderately high annual rainfall to support the fauna and flora. The total rainfall was perhaps not greatly different from what it is today, and the temperature may have been quite similar, with possibly less seasonal variation. The rains, however appear to have been periodic and torrential [...] " Olson (1948, p. 192)
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Preservation of anatomical detail:variable
Temporal resolution:snapshot
Collection methods and comments
Collection methods:field collection,survey of museum collection
Reason for describing collection:taxonomic analysis
Museum repositories:FMNH
Collection method comments: Olson (1958) subdivided the main locality into two sites: Quarry site and High channel site.
Metadata
Database number:177003
Authorizer:R. Butler Enterer:E. Dunne
Modifier:E. Dunne Research group:vertebrate
Created:2016-03-15 11:48:56 Last modified:2018-01-24 10:48:20
Access level:the public Released:2016-03-15 11:48:56
Creative Commons license:CC BY
Reference information

Primary reference:
58444. E. C. Olson. 1958. Fauna of the Vale and Choza: Summary, Review, and Integration of the Geology and the Faunas. Fieldiana Geology 10(32):397-448 [R. Butler/E. Dunne]

Secondary references:

28784 R. C. Fox and M. C. Bowman. 1966. Osteology and Relationships of Captorhinus aguti (Cope) (Reptilia: Captorhinomorpha). The University of Kansas Paleontological Contributions, Series Vertebrata 11:1-79 [J. Mueller/T. Liebrecht/J. Alroy]
26907ETE E. C. Olson. 1954. Fauna of the Vale and Choza: 9. Captorhinomorpha. Fieldiana: Geology 10(19):211-218 [M. Carrano/M. Carrano]