. Bulletin. Science; Natural history; Natural history. Figs. 1-5. Sepiamorph sepiid, hypotype, LACMIP 8407, middle Eocene strata. Rose Canyon, San Diego County, southern California, x unless otherwise noted; 1, left lateral view; 2, right lateral view; 3, dorsal view; 4, apical view, ; 5, ventral view, the phragmocone. The cross-sectional shape of the phragmocone is eUiptical and hoof-Uke. The Rose Canyon sepiid belongs to Sepia-like sepiids with strongly oblique (slanting) sutures. These sepiamorphs include Belosepia, Sepia (Jeletzky 1969, p. 107) and the Hoko River sepiid (Squi


. Bulletin. Science; Natural history; Natural history. Figs. 1-5. Sepiamorph sepiid, hypotype, LACMIP 8407, middle Eocene strata. Rose Canyon, San Diego County, southern California, x unless otherwise noted; 1, left lateral view; 2, right lateral view; 3, dorsal view; 4, apical view, ; 5, ventral view, the phragmocone. The cross-sectional shape of the phragmocone is eUiptical and hoof-Uke. The Rose Canyon sepiid belongs to Sepia-like sepiids with strongly oblique (slanting) sutures. These sepiamorphs include Belosepia, Sepia (Jeletzky 1969, p. 107) and the Hoko River sepiid (Squires 1988). The Rose Canyon sepiamorph most closely resembles Belosepia Voltz, 1830, even more than does the Hoko River sepiid. The ventral flattening of the phragmocone, the hoof-like cross sec- tion, the lateral lobe, and the rapidly expanding siphuncle of the Rose Canyon specimen also are present in Belosepia, and these features help characterize this genus (Edwards 1849, PL 1, figs. Ih, 5, 6; Jeletzky 1969, pp. 26-27). The Rose Canyon specimen differs from Belosepia, however, in having only a very slight. 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 Southern California Academy of Sciences. Los Angeles, Calif. : The Academy


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