Specimen Name: Physogaleus contortus
Specimen Code: 06CHOND00036-44
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 – Physogaleus – Contortus
Description of Each Specimen:
- Specimen 36: Tooth with grey enamel that goes black around the root – light grey root – twists towards the right
- Specimen 37: Small tooth with grey enamel that goes black towards the root, split in the root lobes – twists to the left
- Specimen 38: Tooth with grey enamel that goes black towards the root, dark spot on the tip, black root – twists to the right
- Specimen 39: Tooth with light grey enamel and a black line against the root – extreme curve towards the right
- Specimen 40: Tooth with light grey enamel fading to black towards the root – extreme curve towards the left with small cusplet on the left
- Specimen 41: Tooth with pale enamel and a black stripe along the root, virtually no left lobe – sharp curve to the left
- Specimen 42: Tiny tooth with pale enamel and a black stripe along the root, dark root – curves right with pronounced warp
- Specimen 43: Tooth with dusky tan enamel that goes dark towards the root, small chip off the edge on the right – curves to the left
- Specimen 44: Tooth with very pale enamel and a black stripe along the root, some pronounced serration near the root – curves to the left
Measurements of Each Specimen:
- Specimen 36: 20mm x 16mm x 3mm
- Specimen 37: 17mm x 15mm x 4mm
- Specimen 38: 19mm x 16mm x 4mm
- Specimen 39: 19mm x 19mm x 5mm
- Specimen 40: 18mm x 16mm x 3mm
- Specimen 41: 20mm x 16mm x 2.5mm
- Specimen 42: 18.5mm x 15mm x 2mm
- Specimen 43: 15mm x 14mm x 2mm
- Specimen 44: 16mm x 15mm x 2mm
The Fossil Ark 