Field database / record
Trimerus delphinocephalus
PB-2025-000001Waldron shale · Vernon Indiana — documented 2025-11-13. Counts on this site separate documented records from specimens counted per record.
Photographs
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The record
- Identificationidentified
- Trimerus delphinocephalus
- Original field identificationidentified
- Trimerus delphinocephalus
- Confidenceidentified
- high
- Groupidentified
- trilobite
- Date foundobserved
- 2025-11-13
- Collectorobserved
- Jake M /Paleobeard
- Formationderived
- Waldron shale
- Memberderived
- Not recorded
- Locality (public)derived
- Vernon Indiana
- Regionderived
- Vernon Indiana
- Sectionderived
- Not recorded
- Layerderived
- Not recorded
- Stratigraphic precisionobserved
- formation only
- Preservationobserved
- unknown
- Dispositionobserved
- collected
- Countobserved
- 1 specimen
- Preparation stateobserved
- prepared
Identification history
The original field identification is kept even when a later determination changes it.
| # | Identification | Confidence | By | Date |
|---|---|---|---|---|
| 1 | Trimerus delphinocephalus | high | Jake M /Paleobeard | 2026-10-09 |
Associations
None recorded.
Public notes
Length: 5.5 inches (139.70 mm), supplied by the collector. Found face up, intact, prone — reported by the collector. Geological period: Silurian (collector supplied).