El Abra Formation Explained
The El Abra Formation is a geologic formation in Mexico. It preserves fossils dating back to the Cretaceous period.[1]
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Notes and References
- Omaña, L., Alencaster, G., Buitrón, B.E.. 2016. Mid-early late Albian foraminiferal assemblage from the El Abra Formation in the El Madroño locality, eastern Valles–San Luis Potosí Platform, Mexico: Paleoenvironmental and paleobiogeographical significance.. Boletín de la Sociedad Geológica Mexicana. 68. 3. 477–492. 10.18268/BSGM2016v68n3a6. free.