Contributed by Andrew Smith, October 2006
|Distribution||Miocene of Mediterranean countries and North Africa.|
|Type||Hypsoclypus doma Pomel, 1887, p. 163; by original designation.|
|Classification and/or Status||Irregularia; Cassiduloida; Echinolampadidae.
Subjective junior synonym of Hypsoclypus (Heteroclypeus) Cotteau, 1891.
|Remarks||Szorenyi established Hypsoheteroclypus as a new name for Hypsoclypus and Heteroclypeus, believing that this would reduce the confusion that has arisen in the use of these latter names. Kier (1962, p. 112) states that since both Heteroclypeus and Hypsoclypus are older names, Hypsoheteroclypus cannot stand. Hypsoheteroclypus is considered here to be a subjective junior synonym of Hypsoclypus (Heteroclypeus), as it has a distinctly sunken ambulacra leading to the peristome, with strongly developed (tooth-like) bourrelets; the oral area of H. (Hypsoclypus) is weakly depressed towards the peristome but ambulacral zones are flush and there are only feebly developed bourrelets.
E. Szörenyi. 1953. Miozäne Echinoiden aus den westlichen Teilen der Ukraine. Geologica Hungarica, Series Palaeontologica, 23, 104 pp., 8 pls.
P. M. Kier. 1962. Revision of the cassiduloid echinoids. Smithsonian Miscellaneous Collections, 144 (3) 262 pp.