State by State
- Specimen Number
Broken slab. View of bedding plane or original depositional surface, a.k.a. the former sea floor. Hash of fossil fragments including many brachiopods in closeup. Identified by survey staff as fossil "snails Paupispira (Loxoplocus) and Lophospira, and possibly the fossil brachiopod Hebertella, and maybe some Rafinesquina fragments."
Sedimentary. Limestone. Biomicrite. Shell hash.
- Location & Occurrence
Fossils like this occur in many formations, but this one is most likely from the Grant Lake or Bull Fork Formations in the north-central part of the state in Oldham and Trimble Counties.
- Geologic Age
Ordovician. Predates the End-Ordovician mass extinction.
Recognizable taxa can be identified, even if millions, if not billions of years old. Most of these became extinct during one of Earth's six major mass extinctions, the end-Ordovician.