LOT MMXXVI-001
A+
Isotelus maximus
92 mm Blue-grey limestone 8 segments
$2,400
PALEOBEARD / FOSSILS & FIELD NOTES
OLD ROCK.
OLD ROCK.
NO NONSENSE.
Fossils, field notes, and a straight answer about what you’re looking at. From the Arnheim Formation at Mount Orab, Ohio.
Evidence over approval. Curiosity over status.
Explore the specimen records. Purchases happen through individual eBay listings.
The Collection
The specimen file
Each lot is a single animal unless it says otherwise. When it sells, the slot stays closed until the bed gives up another.
Catalogue names record individual lot identifications, not a verified fauna list. Locality alone does not establish species. See the identification standard and documented Mt. Orab fauna.
Filter
LOT MMXXVI-002
A
Isotelus maximus
61 mm Blue-grey limestone 8 segments
$850
LOT MMXXVI-003
A+
Flexicalymene retrorsa
38 mm Fossiliferous limestone 13 segments
$420
LOT MMXXVI-004
A
Flexicalymene retrorsa
29 mm Fossiliferous limestone 13 segments
$340
LOT MMXXVI-005
A
Flexicalymene retrorsa
95 mm Butter shale 13 segments
$520
LOT MMXXVI-006
A
Flexicalymene retrorsa
31 mm Butter shale 13 segments
$285
LOT MMXXVI-007
A
Flexicalymene retrorsa
34 mm Butter shale 13 segments
$240
LOT MMXXVI-008
B
Flexicalymene retrorsa
26 mm Butter shale 13 segments
$160
LOT MMXXVI-009
B
Flexicalymene retrorsa
150 mm Butter shale 13 segments
Sold
Sold
From my prep bench
Recently sold
A record of the specimens I’ve prepared and sold.
PB-S001 · SoldA
Flexicalymene retrorsa
Sold for $100
PB-S002 · SoldA+
Flexicalymene retrorsa
Sold for $125
PB-S003 · SoldA+
Flexicalymene retrorsa
Sold for $125
The standard / Evidence first
The fossil doesn’t care who you know.
An identification needs anatomy, provenance and evidence. Not a following. If the species isn’t confirmed, say so. If the evidence changes, correct the record. That standard applies here, too.
Show the evidence.
Not your following. The Paleobeard approach
Field Notes
From the face and the prep bench
14 September 2026
The Mt. Orab Bed: Fauna and Evidence
The Sunset Member butter shale, repeated storm burial, and the difference between a Mt. Orab record and a regional possibility.
22 August 2026Eyes, Preservation and Identification
Condition and taxonomy answer different questions. A preservation grade cannot establish a species or a quarry occurrence.
19 July 2026Butter Shale: Preserve the Evidence
Why the layer, articulation and association matter alongside the prepared fossil.
