Fossil Information (Phanerozoic Eon)
| ID: | 481 |
| Fossil Type: | Tooth |
| Fossil Description: | Giant Mackerel (Lamnid) shark |
| Status: | Extinct |
| Relative Size: | Large |
| Class: | Chondrichthyes |
| Subclass: | Elasmobranchii |
| Order: | Lamniformes |
| Family: | Otodontidae |
| Scientific Name (Genus species): | Otodus obliquus (Agassiz, 1843), Otodus obliqua, Lamna obliqua |
| Era/Period: | Cenozoic/Tertiary |
| Epoch/Age: | Early Eocene/Ypresian or Lutetian |
| MYA: | 50 to 55 (52) |
| Discovery Location (Water, Land): | Phosphate mines/pits in the Atlas Mountains at 11,000 feet |
| Discovery Location (City, ST): | Khouribga, Morocco, North Africa |
| Deepest Formation: | Elnef |
| Color: | Tan root, tan and gold crown |
| Dimensions: | 1.00-1.25"L, up to 1.1"W |
| Comments: | Purchased, not found. Lateral, U-shaped thick root with at least two side cusplets. Curved main cusp. Weak or missing nutrient groove. Ancestor to the Megalodon. |
| Collector Name: | RLD |
| Image Filename 1: | DSCF4419.jpg |
| Image Filename 2: | DSCF4420.jpg |
| Image Filename 3: | DSCF4421.jpg |
| Image Filename 4: | DSCF4422.jpg |