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Homoiostelea

      Homoiostelea is an extinct class of Upper Cambrian to Lower Devonian echinoderms. They are characteristic by feeding arm and a complex stem composed in part of more than 2 series of plates. The thaeca is apparently assymetrical. They partially reminiscent morphologically simillar (but bilaterally more symetrical) Stylophora. Both classes were considered as representatives of group of advaced echinoderms Calcichordata (certain equivalent of early chordates).
Dendrocystites barrandei (Bather, 1913) KP879
Dendrocystites barrandei (Bather, 1913) KP881
Dendrocystites barrandei (Bather, 1913) KP875
Dendrocystites barrandei (Bather, 1913) KP876
Dendrocystites barrandei (Bather, 1913) KP956
Dendrocystites barrandei (Bather, 1913) KP972
Dendrocystites barrandei (Bather, 1913) KP973
Dendrocystites sedgwicki Barrande, 1887 KP246
Dendrocystites sedgwicki Barrande, 1887 KP248
Dendrocystites sedgwicki Barrande, 1887 KP236
Dendrocystites sedgwicki Barrande, 1887 KP237
Dendrocystites sedgwicki Barrande, 1887 KP233
Dendrocystites sedgwicki Barrande, 1887 KP234
Dendrocystites sedgwicki Barrande, 1887 KP235
Dendrocystites sedgwicki Barrande, 1887 KP244
Dendrocystites sedgwicki Barrande, 1887 KP242
Dendrocystites sedgwicki Barrande, 1887 KP245
Dendrocystites sedgwicki Barrande, 1887 KP247
Dendrocystites sedgwicki Barrande, 1887 KP252
Dendrocystites sedgwicki Barrande, 1887 KP251
Homoiostelea
Img. 91:
Homoiostelea
Img. 91: A reconstruction of typical Homoiostelea: Castericystis vali
Dendrocystites barrandei (Bather, 1913) KP879
Dendrocystites barrandei (Bather, 1913) KP881
Dendrocystites barrandei (Bather, 1913) KP875
Dendrocystites barrandei (Bather, 1913) KP876
Dendrocystites barrandei (Bather, 1913) KP956
Dendrocystites barrandei (Bather, 1913) KP972
Dendrocystites barrandei (Bather, 1913) KP973
Dendrocystites sedgwicki Barrande, 1887 KP246
Dendrocystites sedgwicki Barrande, 1887 KP248
Dendrocystites sedgwicki Barrande, 1887 KP236
Dendrocystites sedgwicki Barrande, 1887 KP237
Dendrocystites sedgwicki Barrande, 1887 KP233
Dendrocystites sedgwicki Barrande, 1887 KP234
Dendrocystites sedgwicki Barrande, 1887 KP235
Dendrocystites sedgwicki Barrande, 1887 KP244
Dendrocystites sedgwicki Barrande, 1887 KP242
Dendrocystites sedgwicki Barrande, 1887 KP245
Dendrocystites sedgwicki Barrande, 1887 KP247
Dendrocystites sedgwicki Barrande, 1887 KP252
Dendrocystites sedgwicki Barrande, 1887 KP251
Virtual museum of the Czech Geological Survey, www.geology.cz, (C) Czech Geological Survey, 2011, v.0.99 [13.12.2011]