. Bulletin. Natural history; Natuurlijke historie. r^'. Figure 12. Elliptocephala spp. 1. Elliptocephala asaphoides Emmons, Greenwich Fm., Greenwich, Washington Co., New York, YPM 8190, 2-6. Sekwi Fm. type section, mi SE of June Lake, Mackenzie Mtns., District of Mackenzie, Canada. 2. Elliptocephala sequomaliis (Fritz), GSC 27352, the holotype, 3. Elliptocephala wal- cotti, new species, GSC 27291, the holotype, 4. Elliptocephala laxociiles (Fritz), GSC 27333, the paratype, 5. Elliptocephala logani (Walcott), GSC 27376, 6. Elliptocephala parvifrons (Fritz), GSC


. Bulletin. Natural history; Natuurlijke historie. r^'. Figure 12. Elliptocephala spp. 1. Elliptocephala asaphoides Emmons, Greenwich Fm., Greenwich, Washington Co., New York, YPM 8190, 2-6. Sekwi Fm. type section, mi SE of June Lake, Mackenzie Mtns., District of Mackenzie, Canada. 2. Elliptocephala sequomaliis (Fritz), GSC 27352, the holotype, 3. Elliptocephala wal- cotti, new species, GSC 27291, the holotype, 4. Elliptocephala laxociiles (Fritz), GSC 27333, the paratype, 5. Elliptocephala logani (Walcott), GSC 27376, 6. Elliptocephala parvifrons (Fritz), GSC 27355, the holotype, 7, 8. Elliptocephala luudgreui (Moberg), Norretorp Fm. at Tunbyholm, east Scania, Sweden, PIL Lo 1398t internal and external molds, 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 Peabody Museum of Natural History. New Haven : The Museum


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