. Smithsonian miscellaneous collections . 1. Sentinelia draco Walcott 2. Corralia undulata Walcott 3. Hazelia conferta Walcott 4. Choia carteri Walcott 8MITHS0NIAN MISCELLANEOUS COLLECTIONS VOL. 67, NO. 6, PL. 73. 1. Choia carteri Walcott 2. Choia ridleyi Walcott NO. 6 MIDDLE CAMBRIAN SPONGIAE 347 DESCRIPTION OF PLATE 73 PAGE Choia carteri Walcott (see pis. 72 and 75) 292 Fig. 1. (X2.) A thoroughly flattened specimen with unusually well-preserved long spicules. The lower side of disk is indi-cated by the mat of fine spicules over the larger S. National Museum, Catalogue No.
. Smithsonian miscellaneous collections . 1. Sentinelia draco Walcott 2. Corralia undulata Walcott 3. Hazelia conferta Walcott 4. Choia carteri Walcott 8MITHS0NIAN MISCELLANEOUS COLLECTIONS VOL. 67, NO. 6, PL. 73. 1. Choia carteri Walcott 2. Choia ridleyi Walcott NO. 6 MIDDLE CAMBRIAN SPONGIAE 347 DESCRIPTION OF PLATE 73 PAGE Choia carteri Walcott (see pis. 72 and 75) 292 Fig. 1. (X2.) A thoroughly flattened specimen with unusually well-preserved long spicules. The lower side of disk is indi-cated by the mat of fine spicules over the larger S. National Museum, Catalogue No. (X 3-) A broken specimen showing a portion of the convexlower side and radiating from beneath it the strong longspicules of the upper side of the sponge. U. S. NationalMuseum, Catalogue No. (X3-) Three injured specimens, two showing the upper sideand one (X) the fine spicules of the lower side. U. Museum, Catalogue No. 66484. Choia ridleyi Walcott (see pi. 74, figs. 1, ia) 294 Figs. 2, 2a. (X4-) Disks illustrating the long spicules of the upperside. U. S. National Museum, Catalogue No. specimens represented on this plate are all from locality35k, Middle Cambrian: Burgess s
Size: 1254px × 1993px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorsm, bookcentury1800, bookdecade1860, booksubjectscience
