Grainstone deposit from shelfdward edge of Capitan reef (transition to Tansill Formation). Coated
grains, green algae, fusulinids, molluscan fragments and other grains are present. Note also the
large belerophont gastropods which were common sediment grazers in this environment.
Outcrop on north side of mouth of Dark Canyon, Eddy Co., NM. Coin is 1.8 cm in diameter.

© Peter A. Scholle, 1999

Guadalupe Mtns. geology —— Scholle home page —— NM Bureau staff page —— NM Bureau main page