shadowshador:
Extinct mackerel shark (†Protolamna ricaurtei)
shadowshador:
Extinct mackerel shark (†Protolamna sokolovi)
shadowshador:
Extinct mackerel shark (†Protolamna roanokeensis)
shadowshador:
Extinct mackerel shark (†Protolamna gigantea)
shadowshador:
Extinct mackerel shark (†Protolamna carteri)
shadowshador:
Extinct mackerel shark (†Protolamna borodini)