Oyster marl near Rancho Abajo, Mexico
Caption: Two views of the San Rafael (upper Oligocene), showing oyster bed near bottom, under lain by buff clays, and over lain by a marl packed with Heterostegina antillea. Left - near Rancho Abajo, type locality for oyster marl - right - near Soledade, Metropolitan road, V. C., Mexico.
| Format: | Electronic |
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University of Alabama Libraries
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| Online Access: | http://purl.lib.ua.edu/110214 |