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