Bohemura jahni Jaekel, 1903 (photo taken by V. Petr)
Lectotype of the Bohemian protasterid brittlestar from
the Middle Ordovician, Berounian (Caradocian), Zahorany Formation. Note the
dendrocystitid carpoid at the bottom of the photograph!
See the article: Petr, V. (1989): Revision of
morphology and ecology of Bohemura jahni Jaekel, 1903 (Ophiuroidea,
Protasteridae) from Bohemian Middle Ordovician. - Sbornik
Narodniho muzea, Rada B, 45 (1): 1-20. Praha.