The Echinoid Directory

Oppenheimia Cossmann, 1900, p. 186

[pro Lambertia Oppenheim 1899, p. 28 (non Desvoidy, 1863) ]

Diagnostic Features	Test ovate with anterior sulcus; depressed in profile with flat base and low, moderately sharp ambitus. Apical disc ethmolytic, with 4 gonopores; genital plate 2 projects to the posterior of the posterior oculars. Anterior ambulacrum narrow and depressed adapically; pore-pairs small, simple isopores. Other ambulacra petaloid and flush. Anterior paired petals bowed with pore-pairs in anterior column of anterior petals rudimentary; remainder large and conjugate; Posterior petals bowed to lanceolate, converging distally. Periproct on short vertically truncate face. Peristome wider than long; kidney-shaped; towards anterior. Plastron plating unknown. Illustrations suggest sternal and labral plates fully tuberculate. Aboral surface with large sunken primary tubercles in lateral and anterior interambulacra. Apparently with bilobate subanal fasciole.
Distribution	Middle and Upper Eocene (Priabonian), North Italy, Hungary.
Name gender	feminine
Type	Lambertia giardinalei Oppenheim, 1899, p. 28, by original designation.
Species Included	A. gardinalei (Oppenheim, 1899); Upper Eocene, Italy, Hungary. A. magnus Szorenyi 1963; Middle Eocene, Hungary.
Classification and/or Status	Spatangoida, Micrasterina, ?Loveniidae. Monotypic; Subjective junior synonym of Atelospatangus Koch, 1885.
Remarks	Lambert & Thiery (1925), Szoreyni (1963) and Fischer (1966) synonymized this taxon with Atelospatangus Koch, 1885. Szorenyi (1963) recognized three species, A. transylvanicus, A. magnus and A. giardinalei. Cossmann, M. 1900. Revue critique de Paleozoologie 4, 186. Szorenyi, von E. 1963. Einiges uber Mitlieder der Familie Spatangidae (Echinoidea). Palaeontologische Zeitschrift, 37, 185-197, pls 14-15.