Fossils Found at Muddy Creek in the Nanjemoy Formation

Fossils here include Shark teeth, Skates and Rays

(The smallest divisions in the ruler are 1/8")
Shark Teeth

Haxanchus cf.collisonae
(Sixgill Cow Shark)
This use to be called H. agassizii. It is simply the H. agassizii from the VA Ypresian.
These teeth are very fragile, and hard to find
This is a lateral tooth
Formation:
  • Nanjemoy Formation, Potapaco Member, Bed B
    Age:
  • Lower Eocene (Ypresian), ~55 m.y.
    Location:
  • Fisher Lane Bone Bed, Fisher Branch of Muddy Creek, Staffod Co., VA
    Size:
  • ~"5/8 long (15mm)
    • Odontaspis winkleri
    (Sand Tiger Shark)
    Lateral tooth
    Formation:
  • Nanjemoy Formation, Potapaco Member, Bed B
    Age:
  • Lower Eocene (Ypresian), ~55 m.y.
    Location:
  • Fisher Lane Bone Bed, Fisher Branch of Muddy Creek, Staffod Co., VA
    Size:
  • ~ (mm)
    • Squatina prima
    (Angel Shark)
    Formation:
  • Nanjemoy Formation, Potapaco Member, Bed B
    Age:
  • Lower Eocene (Ypresian), ~55 m.y.
    Location:
  • Fisher Lane Bone Bed, Fisher Branch of Muddy Creek, Staffod Co., VA
    Size:
  • ~ 5/16 (7mm)
    • Striatolamia macrota
    (Sand Tiger Shark)
    Formation:
  • Nanjemoy Formation, Potapaco Member, Bed B
    Age:
  • Lower Eocene (Ypresian), ~55 m.y.
    • Location:
  • Fisher Lane Bone Bed, Fisher Branch of Muddy Creek, Staffod Co., VA
    Size:
  • ~ (mm)
    • Fish

    Phyllodus toliapicus
    (Fish)
    Pharyngeal plate with teeth
    Formation:
  • Nanjemoy Formation, Potapaco Member, Bed B
    Age:
  • Lower Eocene (Ypresian), ~55 m.y.
    Location:
  • Fisher Lane Bone Bed, Fisher Branch of Muddy Creek, Staffod Co., VA
    Size:
  • ~ (mm)
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