Slab with three Choia sponges and an 8 cm long Portalia mira. Wheeler Shale, Middle Cambrian, Millard County. photo

Hajar | all galleries >> Palaeogalleries >> North American Middle Cambrian > Slab with three Choia sponges and an 8 cm long Portalia mira. Wheeler Shale, Middle Cambrian, Millard County.


15-OCT-2013

Walott though that Portalia (from the single Burgess Shale example) could have been a holothurian.

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