The Guadalupe Mountains are part of which reef complex?
A Capitan Reef
B Chihuahua Atoll
C Texas Fossil Reef
The Delaware Basin, in West Texas and southern New Mexico, was once covered by the Delaware Sea. The Capitan Reef is a 643-kilometre-long fossil reef complex formed about 275 to 277 million years ago by the sea which covered the present-day Guadalupe Mountains National Park.
Correct Answer: Capitan Reef