Waggoner Ranch Formation
Stratigraphic range: Artinskian- Kungurian ~290–268  Ma PreꞒ Ꞓ O S D C P T J K Pg N
Type	Formation
Unit of	Wichita Group
Underlies	Arroyo Formation
Overlies	Petrolia Formation
Lithology
Primary	Limestone
Other	Claystone
Location
Coordinates	34°00′N 99°00′W / 34.0°N 99.0°W / 34.0; -99.0
Approximate paleocoordinates	2°12′N 28°30′W / 2.2°N 28.5°W / 2.2; -28.5
Region	Texas
Country	United States
Waggoner Ranch Formation (the United States) Show map of the United States Waggoner Ranch Formation (Texas) Show map of Texas

The Waggoner Ranch Formation is a geologic formation in northern Texas. It preserves fossils dating back to the Artinskian to Kungurian stages of the Permian period. ^[1]

Fossil content

The following fossils have been uncovered from the formation: ^[1]

Synapsids

Temnospondyls

Reptiles

Cotylosauria

• Diadectes sideropelicus ^[2]
• Diadectes sp. ^[2]

Amphibians

• Diplocaulus sp. ^[2]

See also

• List of fossiliferous stratigraphic units in Texas
• Paleontology in Texas

References

Bibliography

• Sumida, S. S.; J. Dodick; A. Metcalf, and G. Albright. 2010. Reiszorhinus olsoni, a New Single-Tooth-Rowed Captorhinid Reptile from the Lower Permian of Texas. Journal of Vertebrate Paleontology 30. 704–714. .
• Heaton, M. J. 1979. Cranial Anatomy of Primitive Captorhinid Reptiles from the Late Pennsylvanian and Early Permian, Oklahoma and Texas. Oklahoma Geological Survey, Bulletin 127. 1–83. .
• Clark, J., and R. L. Carroll. 1973. Romeriid Reptiles from the Lower Permian. Bulletin of the Museum of Comparative Zoology 144. 353–407. .
• Fox, R. C., 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. .
• Vaughn, P. P. 1955. The Permian reptile Araeoscelis restudied. Bulletin of the Museum of Comparative Zoology 113. 305–467. .
• Romer, A. S., and L. I. Price. 1940. Review of the Pelycosauria. Geological Society of America Special Paper 28. 1–538. .
• Romer, A. S. 1928. Vertebrate faunal horizons in the Texas Permo-Carboniferous red beds. University of Texas Bulletin 2801. 67–108. .
• Williston, S. W. 1915. New genera of Permian reptiles. The American Journal of Science 39. 575–579. .
• Williston, S. W. 1914. Broiliellus, a new genus of amphibians from the Permian of Texas. Journal of Geology 22. 49–56. .