The structure and development of the skull of Costa Rican plethodontid salamanders (Amphibia: Urodela)
Identifieur interne : 008D52 ( Main/Exploration ); précédent : 008D51; suivant : 008D53The structure and development of the skull of Costa Rican plethodontid salamanders (Amphibia: Urodela)
Auteurs : Jens Ehmcke [Allemagne] ; Günter Clemen [Allemagne]Source :
- Annals of Anatomy [ 0940-9602 ] ; 2000.
English descriptors
- KwdEn :
- Abscondens, Ancestral condition, Anlage, Anterior part, Anterior parts, Arrowhead, Bolitoglossa, Bolitoglossa subpalmata, Broad cranial fontanelle, Cartilage, Caudal, Clemen, Costa, Costa rica, Cranial, Cranial fontanelle, Dentalis, Direct development, Dorsal, Dorsal processes, Dorsal view, Family plethodontidae, Fontanelle, Foramen, Frontal, Hatchling, Large cranial fontanelle, Larval period, Magn, Maxillary, Nasal, Neotropics, Nototriton abscondens, Oedipina, Oedipina uniformis, Orbitosphenoid, Ossified, Otic, Otic capsules, Otic crest, Parasphenoid, Parietals, Pars dentalis, Partes dentales, Partial view, Plethodontidae, Prefrontal, Premaxillary, Premaxillary dorsal processes, Premaxillary pars dentalis, Present study, Quadrate, Rica, Rostral, Rostral region, Salamander, Semicircular canals, Sequence of development, Skull, Skull bones, Small angle, Small part, Subpalmata, Uniformis, Upper skull, Urodele, Ventral, Ventral view, Vomer, ossification.
- Teeft :
- Abscondens, Ancestral condition, Anlage, Anterior part, Anterior parts, Arrowhead, Bolitoglossa, Bolitoglossa subpalmata, Broad cranial fontanelle, Cartilage, Caudal, Clemen, Costa, Costa rica, Cranial, Cranial fontanelle, Dentalis, Direct development, Dorsal, Dorsal processes, Dorsal view, Family plethodontidae, Fontanelle, Foramen, Frontal, Hatchling, Large cranial fontanelle, Larval period, Magn, Maxillary, Nasal, Nototriton abscondens, Oedipina, Oedipina uniformis, Orbitosphenoid, Ossified, Otic, Otic capsules, Otic crest, Parasphenoid, Parietals, Pars dentalis, Partes dentales, Partial view, Prefrontal, Premaxillary, Premaxillary dorsal processes, Premaxillary pars dentalis, Present study, Quadrate, Rica, Rostral, Rostral region, Salamander, Semicircular canals, Skull, Skull bones, Small angle, Small part, Subpalmata, Uniformis, Upper skull, Urodele, Ventral, Ventral view, Vomer.
Abstract
Summary: We describe the structure of the skulls of the Costa Rican plethodontid salamanders Bolitoglossa subpalmata, Oedipina uniformis and Nototriton abscondens, and the characteristic sequences of development and ossification of the bony elements resulting from direct development using mainly cleared and stained specimens. Significant differences between the species studied are observed. N. abscondens possesses the broadest premaxillary pars dentalis and O. uniformis the narrowest one. The premaxillary dorsal processes are fused over their rostral third only in B. subpalmata; over half their extention in N. abscondens and almost completely in O. uniformis. A prefrontal is always present in N. abscondens; it is hidden underneath the nasal or missing in B. subpalmata, and it is always absent in O. uniformis. The skull bones, with the exception of the orbitosphenoid, develop and ossify sequentially from caudal to rostral in these directly developing species. A more massive pars dentalis of a generally narrower premaxillary are found as typical characters in males.
Url:
DOI: 10.1016/S0940-9602(00)80100-4
Affiliations:
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processes</term><term>Dorsal view</term><term>Family plethodontidae</term><term>Fontanelle</term><term>Foramen</term><term>Frontal</term><term>Hatchling</term><term>Large cranial fontanelle</term><term>Larval period</term><term>Magn</term><term>Maxillary</term><term>Nasal</term><term>Neotropics</term><term>Nototriton abscondens</term><term>Oedipina</term><term>Oedipina uniformis</term><term>Orbitosphenoid</term><term>Ossified</term><term>Otic</term><term>Otic capsules</term><term>Otic crest</term><term>Parasphenoid</term><term>Parietals</term><term>Pars dentalis</term><term>Partes dentales</term><term>Partial view</term><term>Plethodontidae</term><term>Prefrontal</term><term>Premaxillary</term><term>Premaxillary dorsal processes</term><term>Premaxillary pars dentalis</term><term>Present study</term><term>Quadrate</term><term>Rica</term><term>Rostral</term><term>Rostral region</term><term>Salamander</term><term>Semicircular canals</term><term>Sequence of development</term><term>Skull</term><term>Skull bones</term><term>Small angle</term><term>Small part</term><term>Subpalmata</term><term>Uniformis</term><term>Upper skull</term><term>Urodele</term><term>Ventral</term><term>Ventral view</term><term>Vomer</term><term>ossification</term></keywords><keywords scheme="Teeft" xml:lang="en"><term>Abscondens</term><term>Ancestral condition</term><term>Anlage</term><term>Anterior part</term><term>Anterior parts</term><term>Arrowhead</term><term>Bolitoglossa</term><term>Bolitoglossa subpalmata</term><term>Broad cranial fontanelle</term><term>Cartilage</term><term>Caudal</term><term>Clemen</term><term>Costa</term><term>Costa rica</term><term>Cranial</term><term>Cranial fontanelle</term><term>Dentalis</term><term>Direct development</term><term>Dorsal</term><term>Dorsal processes</term><term>Dorsal view</term><term>Family plethodontidae</term><term>Fontanelle</term><term>Foramen</term><term>Frontal</term><term>Hatchling</term><term>Large cranial fontanelle</term><term>Larval period</term><term>Magn</term><term>Maxillary</term><term>Nasal</term><term>Nototriton abscondens</term><term>Oedipina</term><term>Oedipina uniformis</term><term>Orbitosphenoid</term><term>Ossified</term><term>Otic</term><term>Otic capsules</term><term>Otic crest</term><term>Parasphenoid</term><term>Parietals</term><term>Pars dentalis</term><term>Partes dentales</term><term>Partial view</term><term>Prefrontal</term><term>Premaxillary</term><term>Premaxillary dorsal processes</term><term>Premaxillary pars dentalis</term><term>Present study</term><term>Quadrate</term><term>Rica</term><term>Rostral</term><term>Rostral region</term><term>Salamander</term><term>Semicircular canals</term><term>Skull</term><term>Skull bones</term><term>Small angle</term><term>Small part</term><term>Subpalmata</term><term>Uniformis</term><term>Upper skull</term><term>Urodele</term><term>Ventral</term><term>Ventral view</term><term>Vomer</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Summary: We describe the structure of the skulls of the Costa Rican plethodontid salamanders Bolitoglossa subpalmata, Oedipina uniformis and Nototriton abscondens, and the characteristic sequences of development and ossification of the bony elements resulting from direct development using mainly cleared and stained specimens. Significant differences between the species studied are observed. N. abscondens possesses the broadest premaxillary pars dentalis and O. uniformis the narrowest one. The premaxillary dorsal processes are fused over their rostral third only in B. subpalmata; over half their extention in N. abscondens and almost completely in O. uniformis. A prefrontal is always present in N. abscondens; it is hidden underneath the nasal or missing in B. subpalmata, and it is always absent in O. uniformis. The skull bones, with the exception of the orbitosphenoid, develop and ossify sequentially from caudal to rostral in these directly developing species. A more massive pars dentalis of a generally narrower premaxillary are found as typical characters in males.</div></front></TEI><affiliations><list><country><li>Allemagne</li></country><region><li>District de Münster</li><li>Rhénanie-du-Nord-Westphalie</li></region><settlement><li>Münster</li></settlement></list><tree><country name="Allemagne"><region name="Rhénanie-du-Nord-Westphalie"><name sortKey="Ehmcke, Jens" sort="Ehmcke, Jens" uniqKey="Ehmcke J" first="Jens" last="Ehmcke">Jens Ehmcke</name></region><name sortKey="Clemen, Gunter" sort="Clemen, Gunter" uniqKey="Clemen G" first="Günter" last="Clemen">Günter Clemen</name><name sortKey="Clemen, Gunter" sort="Clemen, Gunter" uniqKey="Clemen G" first="Günter" last="Clemen">Günter Clemen</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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