Specimen Name: Rhinoptera bonasus
Common Name: Cownose ray
Specimen Code: 06CHOND00013-17
Acquisition Method: Hand collected (May 2019)
Locale: Aurora Fossil Park, Aurora, North Carolina, USA
Formation: Yorktown Formation, Chesapeake Group
Geologic Time Period: Miocene Epoch
Taxonomy:
Eukarya – Animalia – Chordata – Chondrichthyes – Elasmobranchii – Elasmobranchii – Batoidea – Myliobatiformes – Dasyatoidea – Rhinopteridae – Rhinoptera – Bonasus
Description of Each Specimen:
- Specimen 13: Thick and wide dental plate fragment – mostly smooth, but with some definition
- Specimen 14: Extremely worn down dental plate fragment – ridges visible from the sides
- Specimen 15: Worn down dental plate fragment, but ridges visible on the sides
- Specimen 16: Dental plate fragment with clearly defined ridges and white sediment in gaps
- Specimen 17: Very narrow and worn down dental plate fragment, but with distinct curve
Measurements of Each Specimen:
- Specimen 13: 14mm x 6mm x 2mm
- Specimen 14: 19mm x 9mm x 3mm
- Specimen 15: 15mm x 4mm x 4mm
- Specimen 16: 12mm x 5mm x 2mm
- Specimen 17: 15mm x 4mm x 2mm
The Fossil Ark 