Locality KB (Upper Vale Fm.): Kungurian, Texas
collected by E. C. Olson 1946-1953

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Amphibia - Diplocaulidae
Diplocaulus recurvatus Olson 1952
Olson 1958
Sphenacodontidae
Dimetrodon sp. Cope 1878
Reptilia - Captorhinidae
Edaphosauridae sp. Cope 1882
1 individual
probably the same specimen and taxon as described and figured as "Edaphosauridae, Genus nov., unnamed" in Olson (1956:331; catalogue no. CNHM UR 29, erroneously(?) stated to come from Locality KC therein, cf. comments on taxonomic list), and listed as "Edaphosaurid n.gen., unnamed" in Olson (1958:430)
    = Moradisaurinae indet. de Ricqlès and Taquet 1982
Modesto et al. 2016
not an edaphosaurid palate but a moradisaurine maxillary tooth plate
Captorhinikos valensis Olson 1954
Olson 1954 1 individual
CNHM UR 106
Captorhinus sp. Cope 1896
Chondrichthyes - Xenacanthiformes - Xenacanthidae
Xenacanthus sp. Beyrich 1848
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: 283.5 - 273.01 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
Articulated whole bodies:none
Temporal resolution:snapshot
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Museum repositories:FMNH
Collectors:E. C. Olson Collection dates:1946-1953
Taxonomic list comments:“Although Olson (1956:331) stated that FMNH UR 29 was collected from locality ‘KC’ (also in the upper part of the Clear Fork Formation; Olson, 1958: table 1), this is likely a lapsus calami, judging from his statement that this specimen was preserved in association with Captorhinus, and from his faunal lists for localities KB and KC in Olson (1958:430), which list Captorhinus and ‘Edaphosaurid, n. gen., unnamed’ for the locality KB, whereas neither taxon is listed for KC in the 1958 publication.” (Modesto et al, 2016).
Metadata
Database number:85551
Authorizer:J. Mueller, R. Butler Enterer:T. Liebrecht, E. Dunne
Modifier:T. Liebrecht Research group:vertebrate
Created:2009-01-08 07:59:01 Last modified:2017-01-06 07:36:23
Access level:authorizer only Released:2012-01-08 07:59:01
Creative Commons license:CC BY
Reference information

Primary reference:

28928. E. C. Olson. 1948. A Preliminary Report on Vertebrates from the Permian Vale Formation of Texas. Journal of Geology 56:186-198 [J. Mueller/T. Liebrecht]

Secondary references:

61333 S. Modesto, V. J. Flear, M. M. Dilney and R. R. Reisz. 2016. A large moradisaurine tooth plate from the Lower Permian of Texas and its biostratigraphic implications. 36(6):e1221832 [J. Mueller/T. Liebrecht/T. Liebrecht]
26907ETE E. C. Olson. 1954. Fauna of the Vale and Choza: 9. Captorhinomorpha. Fieldiana: Geology 10(19):211-218 [M. Carrano/M. Carrano]
26910ETE E. C. Olson. 1956. Fauna of the Vale and Choza: 13. Diadectes, Xenacanthus, and specimens of uncertain affinities. Fieldiana: Geology 10(27):329-334 [M. Carrano/M. Carrano]
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]