Waggoner Ranch Formation

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′N99°00′W / 34.0°N 99.0°W / 34.0; -99.0
Approximate paleocoordinates	2°12′N28°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

• 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