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Monophyly and affinities of albanerpetontid amphibians (Temnospondyli; Lissamphibia)

Identifieur interne : 003921 ( Istex/Curation ); précédent : 003920; suivant : 003922

Monophyly and affinities of albanerpetontid amphibians (Temnospondyli; Lissamphibia)

Auteurs : James D. Gardner [Canada]

Source :

RBID : ISTEX:739EDCC89278922FDD32CC9EF58CDBCB9C71126D

Descripteurs français

English descriptors

Abstract

Abstract: The Albanerpetontidae are Middle Jurassic–Miocene amphibians that have variously been regarded as caudates (salamanders), a clade distinct from caudates, or incertae sedis lissamphibians. Here I test for monophyly of the Albanerpetontidae and examine the affinities of the group, within the framework of a more inclusive Temnospondyli, by performing a cladistic analysis using 59 informative characters scored for four non-lissamphibian temnospondyl genera, stem- and crown-clade caudates, salientians (frogs), gymnophionans (caecilians), and the two recognized albanerpetontid genera Albanerpeton andCeltedens . Monophyly of the Albanerpetontidae is corroborated. I interpret synapomorphies of the marginal teeth (non-pedicellate; crowns chisel like, labiolingually compressed, with three mesiodistally aligned cuspules) in albanerpetontids as being associated with a shearing bite. Other synapomorphies evidently strengthened and increased the mobility of the skull, mandible, and cervical region for burrowing, feeding, or both. Nested sets of synapomorphies place the Albanerpetontidae within the Lissamphibia, as the sister-taxon of Caudata plus Salientia. None of the 17 characters previously advanced as albanerpetontid–caudate synapomorphies convincingly places the Albanerpetontidae within the Caudata or allies the two groups as sister-taxa. Albanerpetontids are better interpreted not as aberrant caudates, but as a distinct clade of lissamphibians in which numerous apomorphies are superimposed upon an otherwise primitive lissamphibian body plan.

Url:
DOI: 10.1006/zjls.2001.0253

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ISTEX:739EDCC89278922FDD32CC9EF58CDBCB9C71126D

Le document en format XML

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<term>Acctran</term>
<term>Acctran optimization</term>
<term>Adductor</term>
<term>Albanerpeton</term>
<term>Albanerpeton inexpectatum</term>
<term>Albanerpetontid</term>
<term>Albanerpetontid amphibians</term>
<term>Albanerpetontidae</term>
<term>Albanerpetontids</term>
<term>Albanerpetontines</term>
<term>Albanerpeton– Albanerpetontidae –Celtedens– Lissamphibia – osteology – phylogeny – teeth.</term>
<term>Amphibamid</term>
<term>Amphibamids</term>
<term>Amphibia</term>
<term>Amphibian</term>
<term>Anterior</term>
<term>Anterior ramus</term>
<term>Anteriorly</term>
<term>Anura</term>
<term>Anuran</term>
<term>Apateon</term>
<term>Apoda</term>
<term>Apodan</term>
<term>Apodans</term>
<term>Apomorphies</term>
<term>Articular</term>
<term>Articular surface</term>
<term>Articulates</term>
<term>Articulation</term>
<term>Atlantal</term>
<term>Baez</term>
<term>Baez basso</term>
<term>Balanerpeton</term>
<term>Basal</term>
<term>Basal urodele</term>
<term>Basal urodeles</term>
<term>Basapophyses</term>
<term>Batrachia</term>
<term>Batrachian</term>
<term>Beneski</term>
<term>Beneski larsen</term>
<term>Bicuspid</term>
<term>Bicuspid crowns</term>
<term>Bicuspid teeth</term>
<term>Bootstrap</term>
<term>Bootstrap value</term>
<term>Bootstrap values</term>
<term>Bremer</term>
<term>Caecilian</term>
<term>Cannatella</term>
<term>Carroll currie</term>
<term>Carroll holmes</term>
<term>Caudata</term>
<term>Caudate</term>
<term>Celtedens</term>
<term>Celtedens ibericus</term>
<term>Centrum</term>
<term>Cervical region</term>
<term>Character state</term>
<term>Character states</term>
<term>Clack</term>
<term>Clack milner</term>
<term>Clade</term>
<term>Cladistic</term>
<term>Clarendon press</term>
<term>Clavicle</term>
<term>Cleithrum</term>
<term>Clemen</term>
<term>Cloutier</term>
<term>Condyle</term>
<term>Contra</term>
<term>Contra trueb cloutier</term>
<term>Convergent</term>
<term>Convergently</term>
<term>Coronoids</term>
<term>Cotyle</term>
<term>Cranial</term>
<term>Cretaceous</term>
<term>Cryptobranchids</term>
<term>Cryptobranchus</term>
<term>Cundall</term>
<term>Cuspules</term>
<term>Data matrix</term>
<term>Decay index</term>
<term>Deltran</term>
<term>Dendrerpeton</term>
<term>Dentary</term>
<term>Dermal</term>
<term>Dermal scales</term>
<term>Dermophis mexicanus</term>
<term>Doleserpeton</term>
<term>Dorsal</term>
<term>Dorsal surface</term>
<term>Dorsally</term>
<term>Duellman</term>
<term>Duellman trueb</term>
<term>Early permian</term>
<term>Earth sciences</term>
<term>Ectopterygoid</term>
<term>Elwood cundall</term>
<term>Ensom</term>
<term>Eocaecilia</term>
<term>Estes</term>
<term>Estes hoffstetter</term>
<term>Estes reig</term>
<term>Evans milner</term>
<term>External narial margin</term>
<term>Extra steps</term>
<term>Fang</term>
<term>Foramen</term>
<term>Ford cannatella</term>
<term>Fossil</term>
<term>Frog</term>
<term>Frontal</term>
<term>Gardner figure</term>
<term>Genus</term>
<term>Greven</term>
<term>Greven clemen</term>
<term>Gures</term>
<term>Gymnophiona</term>
<term>Gymnophionans</term>
<term>Hanken</term>
<term>Herpetological monographs</term>
<term>Hillis</term>
<term>Hoffstetter</term>
<term>Holotype</term>
<term>Homology</term>
<term>Humerus</term>
<term>Hynobiidae</term>
<term>Ibericus</term>
<term>Inexpectatum</term>
<term>Ingroup</term>
<term>Ingroup taxa</term>
<term>Intercentra</term>
<term>Interclavicle</term>
<term>Intermandibular</term>
<term>Intertemporal</term>
<term>Ivachnenko</term>
<term>Jenkins walsh</term>
<term>Jugal</term>
<term>Jurassic</term>
<term>Karauridae</term>
<term>Karaurids</term>
<term>Karaurus</term>
<term>Kokartus</term>
<term>Labial</term>
<term>Labiolingually</term>
<term>Lacrimal</term>
<term>Larsen</term>
<term>Lateral</term>
<term>Laurin</term>
<term>Laurin reisz</term>
<term>Lingual</term>
<term>Linnean</term>
<term>Linnean society</term>
<term>Lissamphibia</term>
<term>Lissamphibian</term>
<term>Lissamphibian synapomorphies</term>
<term>Lissamphibians</term>
<term>Lower cretaceous</term>
<term>Lower permian</term>
<term>Mandible</term>
<term>Marginal teeth</term>
<term>Matrix</term>
<term>Maxilla</term>
<term>Maxillary</term>
<term>Maxillary arcade</term>
<term>Maxillopalatine</term>
<term>Mccord</term>
<term>Mcgowan</term>
<term>Mcgowan ensom</term>
<term>Mcgowan evans</term>
<term>Medially</term>
<term>Mentomeckelian</term>
<term>Mesiodistally</term>
<term>Middle jurassic</term>
<term>Middle miocene</term>
<term>Milner</term>
<term>Milner sequeira</term>
<term>Miocene</term>
<term>Monocuspid</term>
<term>Monocuspid teeth</term>
<term>Monophyletic</term>
<term>Monophyly</term>
<term>Morphology</term>
<term>Mortise</term>
<term>Movable quadrate</term>
<term>Muscle adductor mandibulae internus</term>
<term>Narial</term>
<term>Natural history</term>
<term>Naylor</term>
<term>Nessov</term>
<term>Neues jahrbuch</term>
<term>Neural arch</term>
<term>Node</term>
<term>Notobatrachus</term>
<term>Nussbaum</term>
<term>Occipital condyle</term>
<term>Odontoid</term>
<term>Odontoid process</term>
<term>Olmstead</term>
<term>Olmstead palmer</term>
<term>Omnh</term>
<term>Ontogenetic</term>
<term>Ontogenetic studies</term>
<term>Optimization</term>
<term>Orbital margin</term>
<term>Osteological</term>
<term>Other lissamphibians</term>
<term>Other temnospondyls</term>
<term>Outgroup</term>
<term>Outgroups</term>
<term>Palatal</term>
<term>Palatal bones</term>
<term>Palatal fangs</term>
<term>Palatine</term>
<term>Paleontology</term>
<term>Parasphenoid</term>
<term>Parietal</term>
<term>Parietal foramen</term>
<term>Parietals</term>
<term>Parsons williams</term>
<term>Pectoral girdle</term>
<term>Pedicel</term>
<term>Pedicellate</term>
<term>Pedicellate teeth</term>
<term>Pennsylvanian</term>
<term>Permian</term>
<term>Phylogenetic</term>
<term>Phylogenetic relationships</term>
<term>Phylogeny</term>
<term>Posterior edge</term>
<term>Posteriorly</term>
<term>Postfrontal</term>
<term>Postorbital</term>
<term>Postparietal</term>
<term>Prefrontal</term>
<term>Premaxilla</term>
<term>Presacral</term>
<term>Presacral vertebrae</term>
<term>Primitively</term>
<term>Prong</term>
<term>Pterygoid</term>
<term>Putative</term>
<term>Putative synapomorphies</term>
<term>Quadrate</term>
<term>Radial condyle</term>
<term>Rage rocek</term>
<term>Ramus</term>
<term>Reig</term>
<term>Reiss</term>
<term>Reisz</term>
<term>Replicates</term>
<term>Rib</term>
<term>Rocek</term>
<term>Salamander</term>
<term>Salientia</term>
<term>Salientian</term>
<term>Schultze</term>
<term>Sensu</term>
<term>Sequeira</term>
<term>Shortest</term>
<term>Shortest tree</term>
<term>Shortest trees</term>
<term>Skeleton</term>
<term>Skull</term>
<term>Skull roof</term>
<term>Spinal</term>
<term>Spinal foramen</term>
<term>Spinal nerve</term>
<term>Splenial</term>
<term>Splenial teeth</term>
<term>Squamosal</term>
<term>Stapedial</term>
<term>Stapedial foramen</term>
<term>Step trees</term>
<term>Strict consensus tree</term>
<term>Supratemporal</term>
<term>Surangular</term>
<term>Symphyseal</term>
<term>Symphyseal teeth</term>
<term>Synapomorphies</term>
<term>Synapomorphy</term>
<term>Systematics</term>
<term>Taxon</term>
<term>Temnospondyl</term>
<term>Temnospondyl genera</term>
<term>Temnospondyli</term>
<term>Temnospondyls</term>
<term>Temnospondyls primitively</term>
<term>Tenon</term>
<term>Terminal taxa</term>
<term>Tetrapod</term>
<term>Tooth crowns</term>
<term>Topology</term>
<term>Tree statistics</term>
<term>Tree steps</term>
<term>Triadobatrachus</term>
<term>Triassic</term>
<term>Trueb</term>
<term>Trueb cloutier</term>
<term>Trunk musculature</term>
<term>Trunk vertebra</term>
<term>Trunk vertebrae</term>
<term>Ualvp</term>
<term>Unambiguous synapomorphies</term>
<term>Uninformative</term>
<term>Uninformative characters</term>
<term>Urodela</term>
<term>Urodele</term>
<term>Ventral</term>
<term>Ventral views</term>
<term>Vertebra</term>
<term>Vertebrate</term>
<term>Vertebrate paleontology</term>
<term>Vomer</term>
<term>Wake hanken</term>
<term>Zoological journal</term>
</keywords>
<keywords scheme="Teeft" xml:lang="en">
<term>Academic press</term>
<term>Acctran</term>
<term>Acctran optimization</term>
<term>Adductor</term>
<term>Albanerpeton</term>
<term>Albanerpeton inexpectatum</term>
<term>Albanerpetontid</term>
<term>Albanerpetontid amphibians</term>
<term>Albanerpetontidae</term>
<term>Albanerpetontids</term>
<term>Albanerpetontines</term>
<term>Amphibamid</term>
<term>Amphibamids</term>
<term>Amphibia</term>
<term>Amphibian</term>
<term>Anterior</term>
<term>Anterior ramus</term>
<term>Anteriorly</term>
<term>Anura</term>
<term>Anuran</term>
<term>Apateon</term>
<term>Apoda</term>
<term>Apodan</term>
<term>Apodans</term>
<term>Apomorphies</term>
<term>Articular</term>
<term>Articular surface</term>
<term>Articulates</term>
<term>Articulation</term>
<term>Atlantal</term>
<term>Baez</term>
<term>Baez basso</term>
<term>Balanerpeton</term>
<term>Basal</term>
<term>Basal urodele</term>
<term>Basal urodeles</term>
<term>Basapophyses</term>
<term>Batrachia</term>
<term>Batrachian</term>
<term>Beneski</term>
<term>Beneski larsen</term>
<term>Bicuspid</term>
<term>Bicuspid crowns</term>
<term>Bicuspid teeth</term>
<term>Bootstrap</term>
<term>Bootstrap value</term>
<term>Bootstrap values</term>
<term>Bremer</term>
<term>Caecilian</term>
<term>Cannatella</term>
<term>Carroll currie</term>
<term>Carroll holmes</term>
<term>Caudata</term>
<term>Caudate</term>
<term>Celtedens</term>
<term>Celtedens ibericus</term>
<term>Centrum</term>
<term>Cervical region</term>
<term>Character state</term>
<term>Character states</term>
<term>Clack</term>
<term>Clack milner</term>
<term>Clade</term>
<term>Cladistic</term>
<term>Clarendon press</term>
<term>Clavicle</term>
<term>Cleithrum</term>
<term>Clemen</term>
<term>Cloutier</term>
<term>Condyle</term>
<term>Contra</term>
<term>Contra trueb cloutier</term>
<term>Convergent</term>
<term>Convergently</term>
<term>Coronoids</term>
<term>Cotyle</term>
<term>Cranial</term>
<term>Cretaceous</term>
<term>Cryptobranchids</term>
<term>Cryptobranchus</term>
<term>Cundall</term>
<term>Cuspules</term>
<term>Data matrix</term>
<term>Decay index</term>
<term>Deltran</term>
<term>Dendrerpeton</term>
<term>Dentary</term>
<term>Dermal</term>
<term>Dermal scales</term>
<term>Dermophis mexicanus</term>
<term>Doleserpeton</term>
<term>Dorsal</term>
<term>Dorsal surface</term>
<term>Dorsally</term>
<term>Duellman</term>
<term>Duellman trueb</term>
<term>Early permian</term>
<term>Earth sciences</term>
<term>Ectopterygoid</term>
<term>Elwood cundall</term>
<term>Ensom</term>
<term>Eocaecilia</term>
<term>Estes</term>
<term>Estes hoffstetter</term>
<term>Estes reig</term>
<term>Evans milner</term>
<term>External narial margin</term>
<term>Extra steps</term>
<term>Fang</term>
<term>Foramen</term>
<term>Ford cannatella</term>
<term>Fossil</term>
<term>Frog</term>
<term>Frontal</term>
<term>Gardner figure</term>
<term>Genus</term>
<term>Greven</term>
<term>Greven clemen</term>
<term>Gures</term>
<term>Gymnophiona</term>
<term>Gymnophionans</term>
<term>Hanken</term>
<term>Herpetological monographs</term>
<term>Hillis</term>
<term>Hoffstetter</term>
<term>Holotype</term>
<term>Homology</term>
<term>Humerus</term>
<term>Hynobiidae</term>
<term>Ibericus</term>
<term>Inexpectatum</term>
<term>Ingroup</term>
<term>Ingroup taxa</term>
<term>Intercentra</term>
<term>Interclavicle</term>
<term>Intermandibular</term>
<term>Intertemporal</term>
<term>Ivachnenko</term>
<term>Jenkins walsh</term>
<term>Jugal</term>
<term>Jurassic</term>
<term>Karauridae</term>
<term>Karaurids</term>
<term>Karaurus</term>
<term>Kokartus</term>
<term>Labial</term>
<term>Labiolingually</term>
<term>Lacrimal</term>
<term>Larsen</term>
<term>Lateral</term>
<term>Laurin</term>
<term>Laurin reisz</term>
<term>Lingual</term>
<term>Linnean</term>
<term>Linnean society</term>
<term>Lissamphibia</term>
<term>Lissamphibian</term>
<term>Lissamphibian synapomorphies</term>
<term>Lissamphibians</term>
<term>Lower cretaceous</term>
<term>Lower permian</term>
<term>Mandible</term>
<term>Marginal teeth</term>
<term>Matrix</term>
<term>Maxilla</term>
<term>Maxillary</term>
<term>Maxillary arcade</term>
<term>Maxillopalatine</term>
<term>Mccord</term>
<term>Mcgowan</term>
<term>Mcgowan ensom</term>
<term>Mcgowan evans</term>
<term>Medially</term>
<term>Mentomeckelian</term>
<term>Mesiodistally</term>
<term>Middle jurassic</term>
<term>Middle miocene</term>
<term>Milner</term>
<term>Milner sequeira</term>
<term>Miocene</term>
<term>Monocuspid</term>
<term>Monocuspid teeth</term>
<term>Monophyletic</term>
<term>Monophyly</term>
<term>Morphology</term>
<term>Mortise</term>
<term>Movable quadrate</term>
<term>Muscle adductor mandibulae internus</term>
<term>Narial</term>
<term>Natural history</term>
<term>Naylor</term>
<term>Nessov</term>
<term>Neues jahrbuch</term>
<term>Neural arch</term>
<term>Node</term>
<term>Notobatrachus</term>
<term>Nussbaum</term>
<term>Occipital condyle</term>
<term>Odontoid</term>
<term>Odontoid process</term>
<term>Olmstead</term>
<term>Olmstead palmer</term>
<term>Omnh</term>
<term>Ontogenetic</term>
<term>Ontogenetic studies</term>
<term>Optimization</term>
<term>Orbital margin</term>
<term>Osteological</term>
<term>Other lissamphibians</term>
<term>Other temnospondyls</term>
<term>Outgroup</term>
<term>Outgroups</term>
<term>Palatal</term>
<term>Palatal bones</term>
<term>Palatal fangs</term>
<term>Palatine</term>
<term>Paleontology</term>
<term>Parasphenoid</term>
<term>Parietal</term>
<term>Parietal foramen</term>
<term>Parietals</term>
<term>Parsons williams</term>
<term>Pectoral girdle</term>
<term>Pedicel</term>
<term>Pedicellate</term>
<term>Pedicellate teeth</term>
<term>Pennsylvanian</term>
<term>Permian</term>
<term>Phylogenetic</term>
<term>Phylogenetic relationships</term>
<term>Phylogeny</term>
<term>Posterior edge</term>
<term>Posteriorly</term>
<term>Postfrontal</term>
<term>Postorbital</term>
<term>Postparietal</term>
<term>Prefrontal</term>
<term>Premaxilla</term>
<term>Presacral</term>
<term>Presacral vertebrae</term>
<term>Primitively</term>
<term>Prong</term>
<term>Pterygoid</term>
<term>Putative</term>
<term>Putative synapomorphies</term>
<term>Quadrate</term>
<term>Radial condyle</term>
<term>Rage rocek</term>
<term>Ramus</term>
<term>Reig</term>
<term>Reiss</term>
<term>Reisz</term>
<term>Replicates</term>
<term>Rib</term>
<term>Rocek</term>
<term>Salamander</term>
<term>Salientia</term>
<term>Salientian</term>
<term>Schultze</term>
<term>Sensu</term>
<term>Sequeira</term>
<term>Shortest</term>
<term>Shortest tree</term>
<term>Shortest trees</term>
<term>Skeleton</term>
<term>Skull</term>
<term>Skull roof</term>
<term>Spinal</term>
<term>Spinal foramen</term>
<term>Spinal nerve</term>
<term>Splenial</term>
<term>Splenial teeth</term>
<term>Squamosal</term>
<term>Stapedial</term>
<term>Stapedial foramen</term>
<term>Step trees</term>
<term>Strict consensus tree</term>
<term>Supratemporal</term>
<term>Surangular</term>
<term>Symphyseal</term>
<term>Symphyseal teeth</term>
<term>Synapomorphies</term>
<term>Synapomorphy</term>
<term>Systematics</term>
<term>Taxon</term>
<term>Temnospondyl</term>
<term>Temnospondyl genera</term>
<term>Temnospondyli</term>
<term>Temnospondyls</term>
<term>Temnospondyls primitively</term>
<term>Tenon</term>
<term>Terminal taxa</term>
<term>Tetrapod</term>
<term>Tooth crowns</term>
<term>Topology</term>
<term>Tree statistics</term>
<term>Tree steps</term>
<term>Triadobatrachus</term>
<term>Triassic</term>
<term>Trueb</term>
<term>Trueb cloutier</term>
<term>Trunk musculature</term>
<term>Trunk vertebra</term>
<term>Trunk vertebrae</term>
<term>Ualvp</term>
<term>Unambiguous synapomorphies</term>
<term>Uninformative</term>
<term>Uninformative characters</term>
<term>Urodela</term>
<term>Urodele</term>
<term>Ventral</term>
<term>Ventral views</term>
<term>Vertebra</term>
<term>Vertebrate</term>
<term>Vertebrate paleontology</term>
<term>Vomer</term>
<term>Wake hanken</term>
<term>Zoological journal</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr">
<term>Sciences de la terre</term>
</keywords>
</textClass>
<langUsage>
<language ident="en">en</language>
</langUsage>
</profileDesc>
</teiHeader>
<front>
<div type="abstract" xml:lang="en">Abstract: The Albanerpetontidae are Middle Jurassic–Miocene amphibians that have variously been regarded as caudates (salamanders), a clade distinct from caudates, or incertae sedis lissamphibians. Here I test for monophyly of the Albanerpetontidae and examine the affinities of the group, within the framework of a more inclusive Temnospondyli, by performing a cladistic analysis using 59 informative characters scored for four non-lissamphibian temnospondyl genera, stem- and crown-clade caudates, salientians (frogs), gymnophionans (caecilians), and the two recognized albanerpetontid genera Albanerpeton andCeltedens . Monophyly of the Albanerpetontidae is corroborated. I interpret synapomorphies of the marginal teeth (non-pedicellate; crowns chisel like, labiolingually compressed, with three mesiodistally aligned cuspules) in albanerpetontids as being associated with a shearing bite. Other synapomorphies evidently strengthened and increased the mobility of the skull, mandible, and cervical region for burrowing, feeding, or both. Nested sets of synapomorphies place the Albanerpetontidae within the Lissamphibia, as the sister-taxon of Caudata plus Salientia. None of the 17 characters previously advanced as albanerpetontid–caudate synapomorphies convincingly places the Albanerpetontidae within the Caudata or allies the two groups as sister-taxa. Albanerpetontids are better interpreted not as aberrant caudates, but as a distinct clade of lissamphibians in which numerous apomorphies are superimposed upon an otherwise primitive lissamphibian body plan.</div>
</front>
</TEI>
</record>

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