Specimen Name: Flexicalymene retrorsa
Specimen Code: 28TRILO00007-08
Acquisition Method: Purchased (date unknown)
Locale: Mt. Orab, Ohio, USA
Formation: Arnheim Formation
Geologic Time Period: Late Ordovician Period
Taxonomy:
Eukarya – Animalia – Arthropoda – Trilobitomorpha – Trilobita – Phacopida – Calymenina – Calymenidae – Flexicalymene – Retrorsa
Description of Each Specimen:
- Specimen 07: A bronze-brown trilobite on a grey matrix – it has a prominent glabella and tiny eyes – the pygidium doesn’t appear to be broken off – it may be rolled under it.
- Specimen 08: On the other side of the matrix is a tiny grey-brown trilobite with a pronounced medial ridge
Measurements of Each Specimen:
- Specimen 07: 17mm x 16mm x 3mm
- Specimen 08: 13mm x 6mm x >1mm
- Matrix: 64mm x 45mm x 14mm
The Fossil Ark 