The Hart Mine Formation is a geologic formation controversially defined from exposures in south-central New Mexico. It preserves fossils dating back to the Eocene epoch.
The Hart Mine Formation is a geologic formation controversially defined from exposures in south-central New Mexico. It preserves fossils dating back to the Eocene epoch. (en)
The Hart Mine Formation is a geologic formation controversially defined from exposures in south-central New Mexico. It preserves fossils dating back to the Eocene epoch. (en)