Contributed by Andrew Smith, August 2011
Diagnostic Features | Distinguished from Arbacina by its homogeneous miliary granulation which is a little less regular, and by the absence of specialized granules beneath and above the primary tubercles (from Fourtau 1920, p. 22) |
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Distribution | Lower Miocene (Burdigalian - Vindebonian), Egypt |
Type | Arbacina fraasi Gauthier, in Fourtau, 1901, p. 91, by original designation |
Species Included | Only the type species |
Classification and/or Status | Camarodonta, Temnopleuroida. Incertae sedis. |
Remarks | Based on three very small individuals the largest of which is 10 mm in diameter. The species is too poorly known to place with any certainty but is probably a Trigonocidaridae. Fourtau, R. 1901. Notes sur les echinides fossiles de l'Egypte. Bulletin de l'Institut egyptien 4 series 2, 31-117, pls 1-6. Fourtau, R. 1920. Catalogue des invertebres fossiles de l'Egypte. Terrains . 2de Partie: Echinodermes Neogenes. Cairo, Government Press |