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USGS 5092-CO, Tyrone C section (10-12 ft above base of Logana Mbr.)

Woodford County, Kentucky
Directions
Next site in KentuckyUSGS 4072-CO: 0.75 miles east of Milner KY, then 1 miles southwest on Shryock Ferry Rd · 3 mi

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Based on our latest records, with claims updated from the BLM on Oct 15, 2026. Land and claims can change quickly, so check before you go.

Minerals on record here

1 mineral

Recorded here: fossil.

3 miUSGS 4072-CO: 0.75 miles east of Milner KY, then 1 miles southwest on Shryock Ferry RdFossil3 miUSGS 4073-CO: 0.75 miles east of Milner, then 1 miles southwest on Shryock FerryFossil4 miUSGS 4940-CO. Road expsure on w. side of Kentucky River, at bridge crossing of Central Kentucky Parkway on n. side of parkway, near SalvisaFossil

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About USGS 5092-CO, Tyrone C section (10-12 ft above base of Logana Mbr.)

USGS 5092-CO, Tyrone C section (10-12 ft above base of Logana Mbr.) is a fossil collection site in Woodford, Kentucky, cataloged in the Paleobiology Database. Fossils here come from the Lexington Limestone, dated to the Kirkfieldian (457.3–449.6 million years ago). The depositional environment is recorded as open shallow subtidal and the tectonic setting is foreland basin. Documented finds include Gorbyoceras tetreauense, Isorthoceras albersi, Cyrtolites retrorsus, Sinuites obesa, Lophospira perangulata, Lophospira milleri.

Geologic setting

Formation
Lexington Limestone
Geologic interval
Kirkfieldian
Age
457.3–449.6 Ma
Depositional environment
open shallow subtidal
Tectonic setting
foreland basin
Recorded occurrences
7
Geology notes

"Cressman (1973) indicated that the Logana Member represented the height of the initial marine transgression, deposited under quiet-water conditions at water depths below wave base";\r\nsequence stratigraphy is according to McLaughlin et al. (2004, Palaeogeogr. Palaeoclimat. Palaeoecol., 210)

Locality notes

Tyrone 7.5' qdr; "From east side of Blackburn Memorial Bridge crossing Kentucky River, take first road north towards Kentucky Utilities Plant; section in railroad and road exposures."

Fossils found here

Gorbyoceras tetreauense
Cephalopoda · Proteoceratidae
Isorthoceras albersi
Cephalopoda · Proteoceratidae
Cyrtolites retrorsus
Tergomya · Cyrtolitidae
Sinuites obesa
Gastropoda · Sinuitidae
Lophospira perangulata
Gastropoda · Lophospiridae
Lophospira milleri
Gastropoda · Lophospiridae
Dalmanella sulcata
Rhynchonellata · Dalmanellidae

Records and references

Data: Paleobiology Database collection 87821 (CC BY 4.0) — view the source record

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Questions about USGS 5092-CO, Tyrone C section (10-12 ft above base of Logana Mbr.)

Can you collect at USGS 5092-CO, Tyrone C section (10-12 ft above base of Logana Mbr.)?

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 USGS 5092-CO, Tyrone C section (10-12 ft above base of Logana Mbr.)?

Fossil.

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Meteorite nearbyA 10.9 kg iron meteorite was found at Frankfort (iron) in 1866, 11 miles from here.

Source: Paleobiology Database.