REFERENCES

Ackerly, S.C. 1989. Kinematics of accretionary shell growth, with examples from brachiopods and molluscs. Paleobiology, 15:147-164.

Anstey, R.L., and Delmet, D.A. 1972. Genetic meaning of zooecial chamber shapes in fossil bryozoans: Fourier analysis. Science, 177:1000-1002.

Anstey, R.L., and Delmet, D.A. 1973. Fourier analysis of zooecial shapes in fossil tubular bryozoans. Geological Society of America Bulletin, 84:1753-1764.

Anstey, R.L., and Pachut, J.F. 1980. Fourier packing ordinate: A univariate size-independent measurement of polygonal packing variation in Paleozoic bryozoans. Mathematical Geology, 12:139-156.

Anstey, R.L., Pachut, J.F., and Prezbindowski, D.R. 1976. Morphogenetic gradients in Paleozoic bryozoan colonies. Paleobiology, 2:131-146.

Boyajian, G.E., and Lutz, T.M. 1992. Evolution of biological complexity and its relation to taxonomic longevity in the Ammonoidea. Geology, 20:983-986.

Canfield, D.J., and Anstey, R.L. 1981. Harmonic analysis of cephalopod suture patterns. Mathematical Geology, 13:23-35.

Daniel, T.L., Helmuth, B.S., Saunders, W.B., and Ward, P.D. 1997. Septal complexity in ammonoid cephalopods increased mechanical risk and limited depth. Paleobiology, 23:470-481.

Foote, M. 1989. Perimeter-based Fourier analysis: A new morphometric method applied to the trilobite cranidium. Journal of Paleontology, 63:880-885.

Foote, M. 1990. Nearest-neighbor analysis of trilobite morphospace. Systematic Zoology, 39:371-382.

García-Ruíz, J.M., Checa, A., and Rivas, P. 1990. On the origin of ammonite sutures. Paleobiology, 16:349-354.

Gevirtz, J.L. 1976. Fourier analysis of bivalve outlines: Implications on evolution and autecology. Mathematical Geology, 8:151-163.

Gildner, R.F. and Ackerly, S. 1985. A Fourier technique for studying ammonoid sutures. Geological Society of America Abstracts with Programs, 17:592.

Hammer, Ø. 1999. The development of ammonoid septa: An epithelial invagination process controlled by morphogens? Historical Biology, 13:153-171.

Hassan, M.A., Westermann, G.E.G., Hewitt, R.A., and Dokanish, M.A. 2002. Finite-element analysis of simulated ammonoid septa (extinct Cephalopoda): Septal and sutural complexities do not reduce strength. Paleobiology, 28:113-126.

Hewitt, R.A., and Westermann, G.E.G. 1997. The mechanical significance of ammonoid septa with complex sutures. Lethaia, 30:205-212.

Hewitt, R.A., and Westermann, G.E.G. 1986. Function of complexly fluted septa in ammonoid shells. I. Mechanical principles and functional models. Neues Jahrbuch fur Geologie und Palantologie Abhandlungen, 172:47-69.

House, M.R. 1980. On the origin, classification and evolution of the early Ammonoidea, pp. 3-36. In House, M. R. and Senior, J. R. (eds.), The Ammonoidea. Academic Press, London and New York.

Jacobs, D.K. 1996. Chambered cephalopod shells, buoyancy, structure and decoupling: History and red herrings. Palaios, 11:610-614.

Kaesler, R.L., and Waters, J.A. 1972. Fourier analysis of the ostracode margin. Geological Society of America Bulletin, 83:1169-1178.

Lewy, Z. 2002. The function of ammonite fluted septal margins. Journal of Paleontology, 76:63-69.

Liang, B., and Smith, P.L. 1997. The Jurassic image database 'Ammon.' Palaeontology, 40:99-112.

Lutz, T.M., and Boyajian, G.E. 1995. Fractal geometry of ammonoid sutures. Paleobiology, 21:329-342.

Lyons, Patrick D., Rioux, Marc, and Patterson, R. Timothy. 2000. Application of a Three-Dimensional Color Laser Scanner to Paleontology: an Interactive Model of a Juvenile Tylosaurus sp. Basisphenoid-Basioccipital. Palaeontologia Electronica, 3: 16, 2.04MB. http://palaeo-electronica.org/2000_2/mosasaur/issue2_00.htm

McShea, D.W. 1991. Complexity and evolution: What everybody knows. Biology and Philosophy, 6:303-324.

Okamoto, T. 1988. Analysis of heteromorph ammonoids by differential geometry. Palaeontology, 31:35-52.

Olóriz, F., and Palmqvist, P. 1995. Sutural complexity and bathymetry in ammonites: fact or artifact? Lethaia, 28:167-170.

Olóriz, F., Palmqvist, P., and PérezClaros, J.A. 1997. Shell features, main colonized environments, and fractal analysis of sutures in Late Jurassic ammonites. Lethaia, 30:191-204.

Olóriz, F., Palmqvist, P., and PérezClaros, J.A. 2002. Morphostructural constraints and phylogenetic overprint on sutural frilling in Late Jurassic ammonites. Lethaia, 35:158-168.

Olóriz, F., Palmqvist, P., and Pérez-Claros, J.A. 1999. Recent advances in morphometric approaches to covariation of shell features and the complexity of suture lines in late Jurassic ammonites, with reference to the major environments colonized, pp. 273-294. In F. Olóriz and F.J. Rodríguez-Tovar, (eds.), Advancing Research on Living and Fossil Cephalopods. Plenum Press, New York.

Pachner, J. 1984. Handbook of Numerical Analysis Applications. McGraw-Hill, New York, New York.

Palmqvist, P., PérezClaros, J.A., Gibert, J., and Santamaría, J.L. 1996. Comparative morphometric study of a human phalanx from the lower Pleistocene site at Cueva Victoria (Murcia, Spain), by means of Fourier analysis, shape coordinates of landmarks, principal and relative warps. Journal of Archaeological Science, 23:95-107.

Raup, D.M. 1967. Geometric analysis of shell coiling: Coiling in ammonoids. Journal of Paleontology, 41:43-65.

Reyment, R.A. 1958. Some factors in the distribution of fossil cephalopods. Stockholm Contributions to Geology, 1:97-184.

Saunders, W.B. 1995. The ammonoid suture problem: Relationships between shell and septal thickness and sutural complexity in Paleozoic ammonoids. Paleobiology, 21:343-355.

Saunders, W.B., and Work, D.M. 1996. Shell morphology and suture complexity in Upper Carboniferous ammonoids. Paleobiology, 22:189-218.

Saunders, W.B., and Work, D.M. 1997. Evolution of shell morphology and suture complexity in Paleozoic prolecanitids, the rootstock of Mesozoic ammonoids. Paleobiology, 23:301-325.

Seilacher, A., and LaBarbera, M. 1995. Ammonites as Cartesian Divers. Palaios, 10:493-506.

Ward, P. 1980. Comparative shell shape distributions in Jurassic-Cretaceous ammonites and Jurassic-Tertiary nautilids. Paleobiology, 6:32-43.

Weidmann, J., and Kullmann, J. 1980. Ammonoid sutures in ontogeny and phylogeny, pp. 215-255. In House, M.R. and Senior, J.R. (eds.), The Ammonoidea. Academic Press, London and New York.

Weidmann, J. 1969. The heteromorphs and ammonoid extinction. Biological Review, 44:563-602.

Westermann, G.E.G. 1971. Form, structure and function of shell and siphuncle in coiled Mesozoic ammonoids. Life Science Contributions of the Royal Ontario Museum, 78:1-39.

Westermann, G.E.G. 1996. Ammonoid life and habitat, p. 608-710. In Landman, N.H., Tanabe, K. and Davis, R.A., (eds.), Ammonoid Paleobiology. Plenum Press, New York, New York.

Westermann, G.E.G., and Tsujita, C.J. 1999. Life habits of ammonoids, pp. 299-325. In Savazzi, E. (ed.), Functional Morphology of the Invertebrate Skeleton. John Wiley and Sons, Chichester.

Wilhite, Ray, 2003. Digitizing Large Fossil Skeletal Elements for Three-Dimensional Applications. Palaeontologia Electronica, 5: 10, 619KB. http://www-odp.tamu.edu/paleo/2002_2/scan/issue2_02.htm