. Smithsonian miscellaneous collections . ace with obscure skeletal strands and fine dermal spicules. U. S. National Museum, Catalogue No. (X 6.) Surface of dermal layer with spicules and only a slight trace of skeletal strands. From specimen represented by fig. id. U. S. National Museum, Catalogue No. (Natural size.) An upright elongate rounded frond broken off at the base. U. S. National Museum, Catalogue No. (Natural size.) An unusually large frond. U. S. National Museum, Catalogue No. (X 6.) Enlargement of the surface of specimen represented by fig.


. Smithsonian miscellaneous collections . ace with obscure skeletal strands and fine dermal spicules. U. S. National Museum, Catalogue No. (X 6.) Surface of dermal layer with spicules and only a slight trace of skeletal strands. From specimen represented by fig. id. U. S. National Museum, Catalogue No. (Natural size.) An upright elongate rounded frond broken off at the base. U. S. National Museum, Catalogue No. (Natural size.) An unusually large frond. U. S. National Museum, Catalogue No. (X 6.) Enlargement of the surface of specimen represented by fig. (Natural size.) Portion of a frond with thickened margins. U. S. National Museum, Catalogue No. of the specimens represented on this plate are from locality35k, Middle Cambrian: Burgess shale member of the Stephenformation, on the west slope of the ridge between Mount Field andWapta Peak, 1 mile ( km.) northeast of Burgess Pass, aboveField, British Columbia. SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 67, NO. 6. PL. 10. HAZELIA DELICATULA Walcott SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 67, NO. 6, PL. 71


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Keywords: ., bookauthorsm, bookcentury1800, bookdecade1860, booksubjectscience