Mollusca of the Tertiary Formations of Northeastern Mexico
Geological Society of America
W-30. 3737 meters south from Rancho El Mantillo on road to Presa Nueva, Carlos Canti'I, China, Nuevo Le6n. L-23. 2.4 kilometers S. 55° E. from Bench Mark Chata, Carlos Cantu, General Bravo, Nuevo Le6n. I-13. 2 kilometers W. 15° S. from ...