The Echinoid Directory

Anthobrissus Pomel, 1883, p. 60

Diagnostic Features	Test small, inflated, slightly truncated posterior margin, greatest width posterior to centre. Apical system anterior, tetrabasal, with four genital pores, no catenal plating (advanced form). Petals of equal length; rather narrow, with outer pore-pair only slightly more elongate than inner, all ambulacral plates with double pores. Periproct supramarginal, with groove extending from periproct opening to posterior border; edge of test may be indented. Peristome anterior, subpentagonal, equant. Opening sunken, with vertical-walled entrance. Bourrelets well developed forming small mounds. Phyllodes slightly broadened adorally, with two series of double pores in each half-ambulacrum. No buccal pores.
Distribution	Aptian to Lower Albian, Early Cretaceous of England and France.
Name gender	masculine
Type	Nucleolites cerceleti Desor in Agassiz & Desor, 1847, p. 155; by subsequent designation of Mortensen, 1948, p. 167.
Species Included	Pomel (1883) included three species when erecting this genus, Cerceleti, Fittoni and probably Lamarckii, all Cretaceous.
Classification and/or Status	Irregularia; Neognathostomata; \'nucleolitid\'. Subjective junior synonym of Nucleolites Lamarck, 1801.
Remarks	Anthobrissus is very similar to Nucleolites and only differs from the type species in having a slightly more elongate test and slightly narrower petals. Such characters are not worthy of generic distinction. Anthobrissus should therefore be considered a subjective junior synonym of Nucleolites. P. M. Kier. 1962. Revision of the cassiduloid echinoids. Smithsonian Miscellaneous Collections, 144 (3) 262 pp. Pomel, A. 1883. Classification méthodique et genera des Échinides vivante et fossiles. Thèses présentées a la Faculté des Sciences de Paris pour obtenir le Grade de Docteur ès Sciences Naturelles, 503, 131 pp. Aldolphe Jourdan, Alger.