Osteological Associations With Unique Tooth Development in Manatees (Trichechidae, Sirenia): A Detailed Look at Modern Trichechus and a Review of the Fossil Record
Identifieur interne : 003892 ( Main/Exploration ); précédent : 003891; suivant : 003893Osteological Associations With Unique Tooth Development in Manatees (Trichechidae, Sirenia): A Detailed Look at Modern Trichechus and a Review of the Fossil Record
Auteurs : Brian Lee Beatty [États-Unis] ; Taisia Vitkovski [États-Unis] ; Olivier Lambert [Belgique] ; Thomas E. Macrini [États-Unis]Source :
- The Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology [ 1932-8486 ] ; 2012-09.
English descriptors
- KwdEn :
- Alveolar bone, Alveolus, Amazon basin, Amnh, Anomotherium, Anterior alveolus, Beatty, Bilophodont, Caribbean region, Continuous distomesial tooth replacement, Cranial, Crypt, Dental capsule, Dentition, Distomesial, Domning, Dugon, Dugong, Dugong dugon, Early miocene, Eocene, Foramen, Fossil, Fossil record, Fossil sirenia, Fossil taxa, Fossil trichechids, Gingerich, Hayek, Hobc, Homogeneous bilophodont cusp morphology, Homogenous bilophodont cusp morphology, Horizontal tooth replacement, Kocki, Late miocene, Lower teeth, Mammal, Manatee, Manatus, Mandible, Mandibular, Mandibular canal, Mandibular foramen, Maxillary, Miocene, Miosiren, Miosiren kocki, Modern trichechus, Molar, Morphology, Move mesially, Natural history, Occlusal, Occlusal surface, Occlusal surfaces, Paleontol, Ribodon, Senegalensis, Sirenia, Sirenian, Skull, Sphenorbital fissure, Taxon, Tooth capsule, Tooth development, Trichechids, Trichechus, Unique tooth development, Upper teeth, Vertebrate, Vertebrate paleontol domning, Visual observation, West atlantic.
- Teeft :
- Alveolar bone, Alveolus, Amazon basin, Amnh, Anomotherium, Anterior alveolus, Beatty, Bilophodont, Caribbean region, Continuous distomesial tooth replacement, Cranial, Crypt, Dental capsule, Dentition, Distomesial, Domning, Dugon, Dugong, Dugong dugon, Early miocene, Eocene, Foramen, Fossil, Fossil record, Fossil sirenia, Fossil taxa, Fossil trichechids, Gingerich, Hayek, Hobc, Homogeneous bilophodont cusp morphology, Homogenous bilophodont cusp morphology, Horizontal tooth replacement, Kocki, Late miocene, Lower teeth, Mammal, Manatee, Manatus, Mandible, Mandibular, Mandibular canal, Mandibular foramen, Maxillary, Miocene, Miosiren, Miosiren kocki, Modern trichechus, Molar, Morphology, Move mesially, Natural history, Occlusal, Occlusal surface, Occlusal surfaces, Paleontol, Ribodon, Senegalensis, Sirenia, Sirenian, Skull, Sphenorbital fissure, Taxon, Tooth capsule, Tooth development, Trichechids, Trichechus, Unique tooth development, Upper teeth, Vertebrate, Vertebrate paleontol domning, Visual observation, West atlantic.
Abstract
Modern manatees have a unique type of tooth development, continually forming identical new molars in the posterior end of each quadrant of their mouths, and then progressively moving teeth anteriorly, only to reabsorb roots and spit out worn crowns. This process is not only developmentally complex, but requires space in the oral cavity that imposes its own limitations on other uses of that space. To gain a clearer understanding of the anatomical constraints on the evolution of this unique developmental process, we identified the specialized craniodental features in modern Trichechus that permit this specialization using visual observation and CT. Furthermore, to better understand the evolution of these traits, we review the fossil record of trichechids for these traits, including CT analysis of the skull of Miosiren kocki, a possible early member of the family from the Early Miocene of Belgium. Anat Rec, 2012. © 2012 Wiley Periodicals, Inc.
Url:
DOI: 10.1002/ar.22525
Affiliations:
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type="ISSN">1932-8486</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">1932-8486</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Alveolar bone</term><term>Alveolus</term><term>Amazon basin</term><term>Amnh</term><term>Anomotherium</term><term>Anterior alveolus</term><term>Beatty</term><term>Bilophodont</term><term>Caribbean region</term><term>Continuous distomesial tooth replacement</term><term>Cranial</term><term>Crypt</term><term>Dental capsule</term><term>Dentition</term><term>Distomesial</term><term>Domning</term><term>Dugon</term><term>Dugong</term><term>Dugong dugon</term><term>Early miocene</term><term>Eocene</term><term>Foramen</term><term>Fossil</term><term>Fossil record</term><term>Fossil sirenia</term><term>Fossil taxa</term><term>Fossil trichechids</term><term>Gingerich</term><term>Hayek</term><term>Hobc</term><term>Homogeneous bilophodont cusp morphology</term><term>Homogenous bilophodont cusp morphology</term><term>Horizontal tooth replacement</term><term>Kocki</term><term>Late miocene</term><term>Lower teeth</term><term>Mammal</term><term>Manatee</term><term>Manatus</term><term>Mandible</term><term>Mandibular</term><term>Mandibular canal</term><term>Mandibular foramen</term><term>Maxillary</term><term>Miocene</term><term>Miosiren</term><term>Miosiren kocki</term><term>Modern trichechus</term><term>Molar</term><term>Morphology</term><term>Move mesially</term><term>Natural history</term><term>Occlusal</term><term>Occlusal surface</term><term>Occlusal surfaces</term><term>Paleontol</term><term>Ribodon</term><term>Senegalensis</term><term>Sirenia</term><term>Sirenian</term><term>Skull</term><term>Sphenorbital fissure</term><term>Taxon</term><term>Tooth capsule</term><term>Tooth development</term><term>Trichechids</term><term>Trichechus</term><term>Unique tooth development</term><term>Upper teeth</term><term>Vertebrate</term><term>Vertebrate paleontol domning</term><term>Visual observation</term><term>West atlantic</term></keywords><keywords scheme="Teeft" xml:lang="en"><term>Alveolar bone</term><term>Alveolus</term><term>Amazon basin</term><term>Amnh</term><term>Anomotherium</term><term>Anterior alveolus</term><term>Beatty</term><term>Bilophodont</term><term>Caribbean region</term><term>Continuous distomesial tooth replacement</term><term>Cranial</term><term>Crypt</term><term>Dental capsule</term><term>Dentition</term><term>Distomesial</term><term>Domning</term><term>Dugon</term><term>Dugong</term><term>Dugong dugon</term><term>Early miocene</term><term>Eocene</term><term>Foramen</term><term>Fossil</term><term>Fossil record</term><term>Fossil sirenia</term><term>Fossil taxa</term><term>Fossil trichechids</term><term>Gingerich</term><term>Hayek</term><term>Hobc</term><term>Homogeneous bilophodont cusp morphology</term><term>Homogenous bilophodont cusp morphology</term><term>Horizontal tooth replacement</term><term>Kocki</term><term>Late miocene</term><term>Lower teeth</term><term>Mammal</term><term>Manatee</term><term>Manatus</term><term>Mandible</term><term>Mandibular</term><term>Mandibular canal</term><term>Mandibular foramen</term><term>Maxillary</term><term>Miocene</term><term>Miosiren</term><term>Miosiren kocki</term><term>Modern trichechus</term><term>Molar</term><term>Morphology</term><term>Move mesially</term><term>Natural history</term><term>Occlusal</term><term>Occlusal surface</term><term>Occlusal surfaces</term><term>Paleontol</term><term>Ribodon</term><term>Senegalensis</term><term>Sirenia</term><term>Sirenian</term><term>Skull</term><term>Sphenorbital fissure</term><term>Taxon</term><term>Tooth capsule</term><term>Tooth development</term><term>Trichechids</term><term>Trichechus</term><term>Unique tooth development</term><term>Upper teeth</term><term>Vertebrate</term><term>Vertebrate paleontol domning</term><term>Visual observation</term><term>West atlantic</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Modern manatees have a unique type of tooth development, continually forming identical new molars in the posterior end of each quadrant of their mouths, and then progressively moving teeth anteriorly, only to reabsorb roots and spit out worn crowns. This process is not only developmentally complex, but requires space in the oral cavity that imposes its own limitations on other uses of that space. To gain a clearer understanding of the anatomical constraints on the evolution of this unique developmental process, we identified the specialized craniodental features in modern Trichechus that permit this specialization using visual observation and CT. Furthermore, to better understand the evolution of these traits, we review the fossil record of trichechids for these traits, including CT analysis of the skull of Miosiren kocki, a possible early member of the family from the Early Miocene of Belgium. Anat Rec, 2012. © 2012 Wiley Periodicals, Inc.</div></front></TEI><affiliations><list><country><li>Belgique</li><li>États-Unis</li></country><region><li>Région de Bruxelles-Capitale</li><li>Texas</li><li>État de New York</li></region><settlement><li>Bruxelles</li></settlement></list><tree><country name="États-Unis"><region name="État de New York"><name sortKey="Beatty, Brian Lee" sort="Beatty, Brian Lee" uniqKey="Beatty B" first="Brian Lee" last="Beatty">Brian Lee Beatty</name></region><name sortKey="Beatty, Brian Lee" sort="Beatty, Brian Lee" uniqKey="Beatty B" first="Brian Lee" last="Beatty">Brian Lee Beatty</name><name sortKey="Beatty, Brian Lee" sort="Beatty, Brian Lee" uniqKey="Beatty B" first="Brian Lee" last="Beatty">Brian Lee Beatty</name><name sortKey="Macrini, Thomas E" sort="Macrini, Thomas E" uniqKey="Macrini T" first="Thomas E." last="Macrini">Thomas E. Macrini</name><name sortKey="Vitkovski, Taisia" sort="Vitkovski, Taisia" uniqKey="Vitkovski T" first="Taisia" last="Vitkovski">Taisia Vitkovski</name></country><country name="Belgique"><region name="Région de Bruxelles-Capitale"><name sortKey="Lambert, Olivier" sort="Lambert, Olivier" uniqKey="Lambert O" first="Olivier" last="Lambert">Olivier Lambert</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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