The Echinoid Directory

• Small, discoidal test up to 22 mm in length; base flat, margin moderately sharp. Rounded anteriorly with deep slits indenting posterior ambulacra.
• Apical disc and petals not seen (upper surface obscured by sediment).
• Peristome central.
• Plating and food grooves on oral surface not recorded; obscured by sediment cover.
• Periproct opening on oral surface just submarginal.
• Internal partitioning unknown.

Miocene (Upper Badenian), Budapest, Hungary.

Kieria semseyana Mihaly, 1985, by original designation.

• Only the type species.

Clypeasteroida; Scutellina; Scutelliformes; Astriclypeidae.

Monotypic; ?subjective junior synonym of Amphiope.

The three specimens on which this species is based are all small and badly preserved with much obscuring sediment. It is unfortunately impossible to tell whether the gonopores are open or not, but these have all the appearance of being juvenile Amphiope at a stage before closure of the posterior lunules, as suggested by Mooi (1989).

Mihaly, S. 1985. Late Badenian Echinoidea from new exposires in Budapest. A Magyar Allami Foldtani Intezet Evi Jelentese (for 1983) 1983, 258-269.

Mooi, R. 1989. Living and fossil genera of the Clypeasteroida (Echinoidea: Echinodermata): an illustrated key and annotated checklist. Smithsonian Contributions to Zoology 488, 1-51.