Waggoner Ranch Formation

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]

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	34.0°N 99.0°W / 34.0; -99.0
Approximate paleocoordinates	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

Fossil content

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

Synapsids

• Dimetrodon limbatus^[2]
• Glaucosaurus megalops^[3]
• Mycterosaurus longiceps^[4]
• Ophiacodon major^[2]
• Secodontosaurus obtusidens^[2]
• Varanosaurus wichitaensis^[4]
• Dimetrodon sp.^[2]
• Ophiacodon sp.^[2]

Temnospondyls

• Broiliellus texensis^[5]
• Eryops megacephalus^[2]
• Eryops sp.^[2]
• Trimerorhachis sp.^[2]

Reptiles

• Araeoscelis casei^[6]
• Captorhinus aguti^[7]
• C. laticeps^[7][8][9]
• Pantylus cordatus^[2]
• Protocaptorhinus cf. pricei^[7]
• Reiszorhinus olsoni^[10]
• Captorhinus sp.^[2]

Cotylosauria

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

Amphibians

• Diplocaulus sp.^[2]

See also

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

References

1. Waggoner Ranch Formation at Fossilworks.org
2. Romer, 1928
3. Williston, 1915
4. Romer & Price, 1940
5. Williston, 1914
6. Vaughn, 1955
7. Fox & Bowman, 1966
8. Clark & Carroll, 1973
9. Heaton, 1979
10. Sumida et al., 2010

Bibliography

• Sumida, S. S.; Dodick, J.; Metcalf, A.; Albright, G. (2010), "Reiszorhinus olsoni, a New Single-Tooth-Rowed Captorhinid Reptile from the Lower Permian of Texas", Journal of Vertebrate Paleontology, 30 (3): 704–714, Bibcode:2010JVPal..30..704S, doi:10.1080/02724631003758078
• 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.; Carroll, R. L. (1973), "Romeriid Reptiles from the Lower Permian", Bulletin of the Museum of Comparative Zoology, 144: 353–407
• Fox, R. C.; Bowman, M. C. (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.; Price, L. I. (1940), "Review of the Pelycosauria", Geological Society of America Special Paper, Geological Society of America Special Papers, 28: 1–538, doi:10.1130/SPE28-p1
• 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, Series 4, 39 (233): 575–579, Bibcode:1915AmJS...39..575W, doi:10.2475/ajs.s4-39.233.575
• Williston, S. W (1914), "Broiliellus, a new genus of amphibians from the Permian of Texas", Journal of Geology, 22 (1): 49–56, Bibcode:1914JG.....22...49W, doi:10.1086/622132