. The Bashford Dean memorial volume :. Fishes; Sharks; Fishes, Fossil. Text'figure 31. Surface and sectional views of a portion of the vertebral column (x ) from the main caudal region of Chlamydoselachus. A—Surface view showing ridged extensions of the arcualia around the notochord. bv., basiventral; ex., cyclospondylous centra; , chordal sheath; , haemal spine; , imperforate basi- dorsal; , imperforate interdorsal; >u., interventral; , perforate basidorsal; , perforate interdorsal. After Goodey, , Fig. 15, pi. XLIV. B—Vertical longitudinal section (
. The Bashford Dean memorial volume :. Fishes; Sharks; Fishes, Fossil. Text'figure 31. Surface and sectional views of a portion of the vertebral column (x ) from the main caudal region of Chlamydoselachus. A—Surface view showing ridged extensions of the arcualia around the notochord. bv., basiventral; ex., cyclospondylous centra; , chordal sheath; , haemal spine; , imperforate basi- dorsal; , imperforate interdorsal; >u., interventral; , perforate basidorsal; , perforate interdorsal. After Goodey, , Fig. 15, pi. XLIV. B—Vertical longitudinal section (with anterior and posterior ends reversed) showing calcified cyclospondylous centra of two sizes. bi'., basiventral; , haemal canal; , haemal spine; , larger cyclospondylous centrum; , neural canal; , smaller cyclospondylous centrum. After Goodey, , Fig. 16, pi. XLIV. V( u/. U. rb, Text-figure 32. A portion of the vertebral column (x ) from the trunk region of Chlamydoselachus. Note the rudimentary ribs. , annulation in the chordal sheath; bd., basidorsal; bu., basiventral; d.{., dorsal foramen; id., interdorsal; in., interventral; rb., rib; , supradorsal hgament. After Goodey, , Fig. 11, pi. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Dean, Bashford, 1867-1928; Gudger, E. W. (Eugene Willis), 1866-1956. New York : [American Museum of Natural History],
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