†order Palaechinoidea Haeckel 1866 (sea urchin)

Echinoidea - Palaechinoidea

Alternative spelling: Palechinida

Full reference: E. Haeckel. 1866. Generelle Morphologie der Organismen, Allgemeine Grundzuge der Organischen Formen-Wissenschaft, Mechanisch Begründet Durch die von Charles Darwin Reformirte Descendez-Theorie. Verlag von Georg Reimer, Berlin CLX-462

Parent taxon: Eognathostomata according to H. Hagdorn 2018

See also Kier 1966

Sister taxa: none

Subtaxa: Cravenechinidae Palaechinidae Wrightia Xysteria

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Ecology: slow-moving low-level epifaunal grazer

Distribution:

• Permian of Greece (1 collection), United States (1: Texas)

• Carboniferous of the United Kingdom (1), United States (1: Indiana)

• Silurian of Sweden (1)

Total: 5 collections each including a single occurrence

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