Class Graptolithoidea, Order Cephalodiscoidea, Family Cephalodiscidae
|Cephalodiscus lutetianus Abrard, Dollfus et Soyer, 1950
Cephalodiscus lutetianus is the only
known fossil species of the recent
genus Cephalodiscus M'Intosh, 1882.
This form was described in 1950 from
the Eocene of France. It was preserved
in form of silicified tubes (up to 9 cm in
length and 2.5 mm in diameter).
This species is known only from the
|To the left - General view of silicified
To the right - Details of the tube