Specimen Name: Carcharhinus obscurus
Common Name: Dusky shark
Specimen Code: 06CHOND00053-58
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 – Selachimorpha – Carcharhiniformes – Carcharhinidae – Carcharhinus – Obscurus
Description of Each Specimen:
- Specimen 53: Medium sized tooth with grey enamel, tall root with heavy wear, serrated base – very slight curve to the right
- Specimen 54: Small tooth with light grey enamel, serrated base, light brown root – very light curve to the right
- Specimen 55: Tooth with bluish grey enamel and two tan stripes near the tip, dark grey root with slight split – very slight curve to the left
- Specimen 56: Tooth with bluish grey enamel and a tan tip, dark grey root with slight split – very slight curve to the right
- Specimen 57: Small tooth with black enamel (worn away near the root), black root – very slight curve to the right
- Specimen 58: Tiny tooth with pale enamel – very slight curve to the left
Measurements of Each Specimen:
- Specimen 53: 18.5mm x 15.5mm x 1mm
- Specimen 54: 15mm x 14mm x 1.5mm
- Specimen 55: 13mm x 11mm x 2mm
- Specimen 56: 12mm x 13mm x 2mm
- Specimen 57: 12mm x 12mm x 1mm
- Specimen 58: 10mm x 9mm x >1mm
The Fossil Ark 