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2003 | 48 | 4 |

Tytuł artykułu

Calculation of numerical density of enamel prisms in multituberculate enamels: A review

Autorzy

Treść / Zawartość

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
In this brief review I explain the method of quantitatively describing prismatic enamel microstructure in multituberculates, to facilitate its practical use by paleontologists. I argue that histogenesis of gigantoprismatic enamel in many multituberculate taxa must have been quite exceptional in mammals. Future studies of enamel in plesiomorphic “plagiaulacidan” multituberculates are necessary to elucidate the evolutionary phases of enamel micromorphology toward prismatic mammalian enamel generally, and perhaps as a consequence, the origin of the successful (Late Cretaceous–Eocene) multituberculate suborder Cimolodonta and relationships among its subgroups. Such studies should therefore include calculation of numerical prism densities whenever possible.

Wydawca

-

Rocznik

Tom

48

Numer

4

Opis fizyczny

p.657-660,fig.

Twórcy

autor
  • Geologisk Museum Boks 1172, Blindern 0318 Oslo, Norway

Bibliografia

  • Carlson, S.J. and Krause, D.W. 1985. Enamel ultrastructure of multituberculate mammals: an investigation of variability. Contributions from the Museum of Paleontology, University of Michigan 27: 1–50.
  • Fosse, G. 1968a. The calculation of prism diameters and number of prisms per unit area in dental enamel. Acta Odontologica Scandinavica 26: 315–336.
  • Fosse, G. 1968b. The numbers of cross−sectioned ameloblasts and prisms per unit area in toothgerms. Acta Odontologica Scandinavica 26: 573–603.
  • Fosse, G. 1968c. Serial etching of dental enamel. Acta Odontologica Scandinavica 26: 285–297.
  • Fosse, G., Risnes, S., and Holmbakken, N. 1973. Prisms and tubules in multituberculate enamel. Calcified Tissue Research 11: 133–150.
  • Fosse, G., Eskildsen, R., Risnes, S., and Sloan, E. 1978. Prism size in tooth enamel of some Late Cretaceous mammals and its value in multituberculate taxonomy. Zoologica Scripta 7: 57–61.
  • Fosse, G., Kielan−Jaworowska Z., and Skaale, S.G. 1985. The microstructure of toothenamel in multituberculate mammals. Palaeontology 28: 435–449.
  • Fosse, G., Kielan−Jaworowska, Z., and Ensom, P.C. 1991. Enamel ultrastructure of Late Jurassic multituberculate mammals. In: Z. Kielan−Jaworowska, N. Heintz, and H.A. Nakrem (eds.), FifthSymposium on Mesozoic Terrestrial Ecosystems and Biota. Extended Abstracts. Contribution from the Paleontological Museum, University of Oslo 364: 25–26.
  • Fosse, G., Râdulescu, C., and Samson, P.M. 2001. Enamel microstructure of the Late Cretaceous multituberculate mammal Kogaionon. Acta Palaeontologica Polonica 46: 437–440.
  • Fox, R.C. 1999. The monophyly of the Taeniolabidoidea (Mammalia: Multituberculata). In: H.A. Leanza (ed.), VII International Symposium on Mesozoic Terrestrial Ecosystems. Abstracts., p. 26. Buenos Aires.
  • Kielan−Jaworowska, Z. and Hurum, J. 2001. Phylogeny and systematics of multituberculate mammals. Palaeontology 44: 389–429.
  • Koenigswald, W., von and Sander, P.M. (eds.) 1997. Tooth Enamel Microstructure. 180 pp. Balkema Press, Rotterdam.
  • Krause, W. D. and Carlson, S. J. 1986. The enamel ultrastructure of multituberculate mammals: a review. Scanning Electron Microscopy, for 1986: 1591–1607.
  • Krause, W.D. and Carlson, S.J. 1987. Prismatic enamel in multituberculate mammals: tests of homology and polarity. Journal of Mammalogy 68: 755–765.
  • McKenna, M.C. 1975. Toward a phylogenetic classification of the Mammalia. In: W.P. Luckett and F.S. Szalay (eds.), Phylogeny of the Primates, 21–46. Plenum Publishing Corporation, New York.
  • Sloan, R.E. and Van Valen, L. 1965. Cretaceous mammals from Montana. Science 148: 220–227.

Typ dokumentu

Bibliografia

Identyfikatory

Identyfikator YADDA

bwmeta1.element.agro-article-6811f055-04c7-4f20-ad7f-8b1aa66d46f9
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