Evolution of mammalian dental enamel
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- Publication date
- 1969
- Topics
- Dental enamel, Mammals, Evolution, Teeth, Teeth, Fossil, Mammals -- Evolution, Teeth -- Evolution
- Publisher
- New York, N.Y. : American Museum of Natural History
- Collection
- americanmuseumnaturalhistory; biodiversity
- Contributor
- American Museum of Natural History Library
- Language
- English
- Rights-holder
- American Museum of Natural History Library
- Volume
- no. 2360
39 p. : 24 cm
"A polarization microscopic study of evolutionary changes in mammalian dental enamel structure is reported. An extensive series of fossil and Recent teeth were studied. The data show that the enamel of the earliest true mammals was non-prismatic (continuous), that true prismatic (discontinuous) enamel structure first arose in the early Cretaceous (Albian) therians, that in placentals prismatic enamel only gradually became the predominant structural type, and that non-therians did not evolve prismatic structure at any time. A discussion of current theories of amelogenesis and its relationship to the orientation of the c axes of the enamel crystallites suggests that the nature of the evolutionary change in enamel structure is an alteration of the orientation of the ameloblasts in relation to the developing enamel front"--P. 35-36
Title from caption
"February 17, 1969."
Includes bibliographical references (p. 36-39)
"A polarization microscopic study of evolutionary changes in mammalian dental enamel structure is reported. An extensive series of fossil and Recent teeth were studied. The data show that the enamel of the earliest true mammals was non-prismatic (continuous), that true prismatic (discontinuous) enamel structure first arose in the early Cretaceous (Albian) therians, that in placentals prismatic enamel only gradually became the predominant structural type, and that non-therians did not evolve prismatic structure at any time. A discussion of current theories of amelogenesis and its relationship to the orientation of the c axes of the enamel crystallites suggests that the nature of the evolutionary change in enamel structure is an alteration of the orientation of the ameloblasts in relation to the developing enamel front"--P. 35-36
Title from caption
"February 17, 1969."
Includes bibliographical references (p. 36-39)
- Abstract
- 'A polarization microscopic study of evolutionary changes in mammalian dental enamel structure is reported. An extensive series of fossil and Recent teeth were studied. The data show that the enamel of the earliest true mammals was non-prismatic (continuous), that true prismatic (discontinuous) enamel structure first arose in the early Cretaceous (Albian) therians, that in placentals prismatic enamel only gradually became the predominant structural type, and that non-therians did not evolve prismatic structure at any time. A discussion of current theories of amelogenesis and its relationship to the orientation of the c axes of the enamel crystallites suggests that the nature of the evolutionary change in enamel structure is an alteration of the orientation of the ameloblasts in relation to the developing enamel front'--P. 35-36.
- Addeddate
- 2023-11-14 23:15:15
- Call number
- amnhnovitates2360
- Call-number
- amnhnovitates2360
- Foldoutcount
- 0
- Genre
- bibliography
- Identifier
- evolutionmammal2360moss
- Identifier-ark
- ark:/13960/s2w0j56gqgb
- Identifier-bib
- amnhnovitates2360
- Ocr
- tesseract 5.3.0-6-g76ae
- Ocr_detected_lang
- en
- Ocr_detected_lang_conf
- 1.0000
- Ocr_detected_script
- Latin
- Ocr_detected_script_conf
- 1.0000
- Ocr_module_version
- 0.0.21
- Ocr_parameters
- -l eng
- Page_number_confidence
- 98
- Page_number_module_version
- 1.0.3
- Pages
- 40
- Pdf_module_version
- 0.0.23
- Possible copyright status
- In copyright. Digitized with the permission of the rights holder.
- Ppi
- 435
- Year
- 1969
- Full catalog record
- MARCXML
This book is available with additional data at Biodiversity Heritage Library.
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