Waggoner Ranch Formation Explained

Waggoner Ranch Formation
Type:	Formation
Period:	Kungurian
Age:	Artinskian-Kungurian ~
Prilithology:	Limestone
Otherlithology:	Claystone
Coordinates:	34°N -99°W
Paleocoordinates:	2.2°N -28.5°W
Unitof:	Wichita Group
Underlies:	Arroyo Formation
Overlies:	Petrolia 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]

Fossil content

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

Synapsids

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

Temnospondyls

• Broiliellus texensis^[5]
• Eryops megacephalus^[4]
• Eryops sp.^[4]
• Trimerorhachis sp.^[4]

Reptiles

• Araeoscelis casei^[6]
• Captorhinus aguti
• C. laticeps^{[7] [8]}
• Pantylus cordatus^[4]
• Protocaptorhinus cf. pricei^[9]
• Reiszorhinus olsoni^[10]
• Captorhinus sp.^[4]

Cotylosauria

• Diadectes sideropelicus^[4]
• Diadectes sp.^[4]

Amphibians

• Diplocaulus sp.^[4]

See also

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

References

Bibliography

Notes and References

1. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=Wichita&formation=Waggoner%20Ranch&group_formation_member=Waggoner%20Ranch Waggoner Ranch Formation
2. Williston, 1915
3. Romer & Price, 1940
4. Romer, 1928
5. Williston, 1914
6. Vaughn, 1955
7. Clark & Carroll, 1973
8. Heaton, 1979
9. Fox & Bowman, 1966
10. Sumida et al., 2010