. Bulletins of American paleontology. . Text-fig. 10. — Schematic diagram to illustrate the shell parameters. Universidad Nacional Autonoma de Mexico, Mexico City, D. F., Mexico (UNAM). The latter institute also has a large part of the type specimens of Aguilera (in Castillo and Aguilera, 1895), while the remainder are either available only as plaster casts in the United States National Museum, U. S. Geological Survey, Washing- ton, (P—USNM), or appear to have been lost (see Table 2). ORDER AMMONOIDEA Suborder PHYLLOCERATINA Arkell 1950 Superfamily PHYLLOCERATACEAE Zittel, 1884 Family PHY
. Bulletins of American paleontology. . Text-fig. 10. — Schematic diagram to illustrate the shell parameters. Universidad Nacional Autonoma de Mexico, Mexico City, D. F., Mexico (UNAM). The latter institute also has a large part of the type specimens of Aguilera (in Castillo and Aguilera, 1895), while the remainder are either available only as plaster casts in the United States National Museum, U. S. Geological Survey, Washing- ton, (P—USNM), or appear to have been lost (see Table 2). ORDER AMMONOIDEA Suborder PHYLLOCERATINA Arkell 1950 Superfamily PHYLLOCERATACEAE Zittel, 1884 Family PHYLLOCERATIDAE Zittel, 1884 Subfamily PHYLLOCERATINAE Zittel, 1884 Genus PHYLLOCERAS Suess, 1865 Type species: Am., heterophyllus J. Sowerby, 1820. Phylloceras cf. P. subplicatius Burckhardt, 1912 PL 25, figs. 1-2 1906. Phylloceras apenninicum Canavari, Burckhardt, Inst. Geol. Mexico Bol. 23, p. 106, pi. XXVIII, figs. 1-5. ? subplicatius Burckhardt, id., Bol. 29, p. 40, pi. VII, figs. 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 Paleontological Research Institution (Ithaca, N. Y. ); Columbia University. Ithaca, N. Y. , Paleontological Research Institution [etc. ]
Size: 823px × 3035px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorpaleontologicalresearchinstitutionit, bookcentury1900
