Beschreibung:
Originally published between 1857 and 1880, this well-illustrated monograph covers sea urchins, starfishes and brittle stars of the Middle Jurassic.
1. The Cidaridae, Hemicidaridae, and Diademadae; 2. Hemipedina, Pedina, Echinidae, Glypticus, Magnotia, Polycyphus, Stomechinus, Saleniadae, Echinoconidae; 3. Collyritidae, Echinobrissidae, Clypeus, Echinolampidae; 4. Pygurus, nn the stratigraphical distribution of the Oolitic Echinodermata; Bibliography of the Echinodermata arranged in chronological order; Additional notes; Plates.