Sinkhole quarry in east part of Evansville, between RR and east-west county road
Randolph County, Illinois38.08333, −89.93333
Can I collect here?
ProSee who owns this land and whether it is claimedPro shows the owner, the claim on this spot and every claim within a mile.
Based on our latest records, with claims updated from the BLM on Oct 3, 2026. Land and claims can change quickly, so check before you go.
Minerals on record here
1 mineralRecorded here: fossil.
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About Sinkhole quarry in east part of Evansville, between RR and east-west county road
Sinkhole quarry in east part of Evansville, between RR and east-west county road is a fossil collection site in Randolph, Illinois, cataloged in the Paleobiology Database. Fossils here come from the Okaw Formation, dated to the Chesterian (335.4–323.4 million years ago). The depositional environment is recorded as carbonate indet. Documented finds include Retispira ornatus, Euomphalus planodorsatus, Gosseletina johnsoni, Dictyotomaria yochelsoni, Orthonychia chesterense, Strophostylus wortheni.
Geologic setting
- Formation
- Okaw
- Geologic interval
- Chesterian
- Age
- 335.4–323.4 Ma
- Depositional environment
- carbonate indet.
- Recorded occurrences
- 15
Locality notes
sec. 24 T.5S R.8W Baldwin Quadrangle
Fossils found here
Retispira ornatus
Gastropoda · Bellerophontidae
Euomphalus planodorsatus
Gastropoda · Euomphalidae
Gosseletina johnsoni
Gastropoda · Gosseletinidae
Dictyotomaria yochelsoni
Gastropoda · Gosseletinidae
Orthonychia chesterense
Gastropoda · Orthonychiidae
Strophostylus wortheni
Gastropoda · Platyceratidae
Naticopsis waterlooensis
Gastropoda · Naticopsidae
Stegocoelia okawensis
Gastropoda · Goniasmatidae
Hypergonia baldwinensis
Gastropoda · Orthonemidae
Eotrochus marigoldensis
Gastropoda · Luciellidae
Palaeozygopleura welleri
Gastropoda · Palaeozygopleuridae
Meekospira bambooformis
Gastropoda · Meekospiridae
Meekospira evansvillensis
Gastropoda · Meekospiridae
Donaldina marigoldensis
Gastropoda · Donaldinidae
Donaldina americana
Gastropoda · Donaldinidae
Records and references
Data: Paleobiology Database collection 58998 (CC BY 4.0) — view the source record
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Questions about Sinkhole quarry in east part of Evansville, between RR and east-west county road
Can you collect at Sinkhole quarry in east part of Evansville, between RR and east-west county road?
It depends on who owns the land and whether a mining claim covers it. BLM land usually allows hand collecting for personal use, national parks allow none, and private land needs the owner’s permission. Pro members see the owner and any claims at this spot.
What minerals are found at Sinkhole quarry in east part of Evansville, between RR and east-west county road?
Fossil.
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Source: Paleobiology Database.