Cranial anatomy of the extinct amphisbaenian Rhineura hatcherii (Squamata, Amphisbaenia) based on high‐resolution X‐ray computed tomography
Identifieur interne : 001324 ( Main/Exploration ); précédent : 001323; suivant : 001325Cranial anatomy of the extinct amphisbaenian Rhineura hatcherii (Squamata, Amphisbaenia) based on high‐resolution X‐ray computed tomography
Auteurs : Maureen Kearney [États-Unis] ; Jessica Anderson Maisano [États-Unis] ; Timothy Rowe [États-Unis]Source :
- Journal of Morphology [ 0362-2525 ] ; 2005-04.
English descriptors
- KwdEn :
Abstract
The fossilized skull of a small extinct amphisbaenian referable to Rhineura hatcherii Baur is described from high‐resolution X‐ray computed tomographic (HRXCT) imagery of a well‐preserved mature specimen from the Brule Formation of Badlands National Park, South Dakota. Marked density contrast between bones and surrounding matrix and at bone‐to‐bone sutures enabled the digital disarticulation of individual skull elements. These novel visualizations provide insight into the otherwise inaccessible three‐dimensionally complex structure of the bones of the skull and their relationships to one another, and to the internal cavities and passageways that they enclose. This study corrects several previous misidentifications of elements in the rhineurid skull and sheds light on skull construction generally in “shovel‐headed” amphisbaenians. The orbitosphenoids in R. hatcherii are paired and entirely enclosed within the braincase by the frontals; this is in contrast to the condition in many extant amphisbaenians, in which a large azygous orbitosphenoid occupies a topologically distinct area of the skull, closing the anterolateral braincase wall. Rhineura hatcherii retains a vestigial jugal and a partially fused squamosal, both of which are absent in many extant species. Sculpturing on the snout of R. hatcherii represents perforating canals conveying sensory innervation; thus, the face of R. hatcherii receives cutaneous innervation to an unprecedented degree. The HRXCT data (available at www.digimorph.org) corroborate and extend previous hypotheses that the mechanical organization of the head in Rhineura is organized to a large degree around its burrowing lifestyle. J. Morphol. © 2004 Wiley‐Liss, Inc.
Url:
DOI: 10.1002/jmor.10210
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: 002157
- to stream Istex, to step Curation: 002014
- to stream Istex, to step Checkpoint: 000C33
- to stream Main, to step Merge: 001360
- to stream Main, to step Curation: 001324
Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Cranial anatomy of the extinct amphisbaenian Rhineura hatcherii (Squamata, Amphisbaenia) based on high‐resolution X‐ray computed tomography</title><author><name sortKey="Kearney, Maureen" sort="Kearney, Maureen" uniqKey="Kearney M" first="Maureen" last="Kearney">Maureen Kearney</name></author><author><name sortKey="Maisano, Jessica Anderson" sort="Maisano, Jessica Anderson" uniqKey="Maisano J" first="Jessica Anderson" last="Maisano">Jessica Anderson Maisano</name></author><author><name sortKey="Rowe, Timothy" sort="Rowe, Timothy" uniqKey="Rowe T" first="Timothy" last="Rowe">Timothy Rowe</name></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:228589B7BD4F1C6462E4FE2B225108B9C8E4878D</idno><date when="2005" year="2005">2005</date><idno type="doi">10.1002/jmor.10210</idno><idno type="url">https://api.istex.fr/document/228589B7BD4F1C6462E4FE2B225108B9C8E4878D/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">002157</idno><idno type="wicri:Area/Istex/Curation">002014</idno><idno type="wicri:Area/Istex/Checkpoint">000C33</idno><idno type="wicri:doubleKey">0362-2525:2005:Kearney M:cranial:anatomy:of</idno><idno type="wicri:Area/Main/Merge">001360</idno><idno type="wicri:Area/Main/Curation">001324</idno><idno type="wicri:Area/Main/Exploration">001324</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Cranial anatomy of the extinct amphisbaenian Rhineura hatcherii (Squamata, Amphisbaenia) based on high‐resolution X‐ray computed tomography</title><author><name sortKey="Kearney, Maureen" sort="Kearney, Maureen" uniqKey="Kearney M" first="Maureen" last="Kearney">Maureen Kearney</name><affiliation wicri:level="2"><country xml:lang="fr">États-Unis</country><placeName><region type="state">Illinois</region></placeName><wicri:cityArea>Department of Zoology, Field Museum of Natural History, Chicago</wicri:cityArea></affiliation></author><author><name sortKey="Maisano, Jessica Anderson" sort="Maisano, Jessica Anderson" uniqKey="Maisano J" first="Jessica Anderson" last="Maisano">Jessica Anderson Maisano</name><affiliation wicri:level="2"><country xml:lang="fr">États-Unis</country><placeName><region type="state">Texas</region></placeName><wicri:cityArea>Jackson School of Geosciences, The University of Texas at Austin, Austin</wicri:cityArea></affiliation></author><author><name sortKey="Rowe, Timothy" sort="Rowe, Timothy" uniqKey="Rowe T" first="Timothy" last="Rowe">Timothy Rowe</name><affiliation wicri:level="2"><country xml:lang="fr">États-Unis</country><placeName><region type="state">Texas</region></placeName><wicri:cityArea>Jackson School of Geosciences and Texas Memorial Museum, The University of Texas at Austin, Austin</wicri:cityArea></affiliation></author></analytic><monogr></monogr><series><title level="j">Journal of Morphology</title><title level="j" type="abbrev">J. Morphol.</title><idno type="ISSN">0362-2525</idno><idno type="eISSN">1097-4687</idno><imprint><publisher>Wiley Subscription Services, Inc., A Wiley Company</publisher><pubPlace>Hoboken</pubPlace><date type="published" when="2005-04">2005-04</date><biblScope unit="volume">264</biblScope><biblScope unit="issue">1</biblScope><biblScope unit="page" from="1">1</biblScope><biblScope unit="page" to="33">33</biblScope></imprint><idno type="ISSN">0362-2525</idno></series><idno type="istex">228589B7BD4F1C6462E4FE2B225108B9C8E4878D</idno><idno type="DOI">10.1002/jmor.10210</idno><idno type="ArticleID">JMOR10210</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0362-2525</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Amphisbaenia</term><term>Rhineura hatcherii</term><term>Rhineuridae</term><term>Squamata</term><term>White River Group</term><term>computed tomography</term><term>cranial anatomy</term><term>worm lizards</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The fossilized skull of a small extinct amphisbaenian referable to Rhineura hatcherii Baur is described from high‐resolution X‐ray computed tomographic (HRXCT) imagery of a well‐preserved mature specimen from the Brule Formation of Badlands National Park, South Dakota. Marked density contrast between bones and surrounding matrix and at bone‐to‐bone sutures enabled the digital disarticulation of individual skull elements. These novel visualizations provide insight into the otherwise inaccessible three‐dimensionally complex structure of the bones of the skull and their relationships to one another, and to the internal cavities and passageways that they enclose. This study corrects several previous misidentifications of elements in the rhineurid skull and sheds light on skull construction generally in “shovel‐headed” amphisbaenians. The orbitosphenoids in R. hatcherii are paired and entirely enclosed within the braincase by the frontals; this is in contrast to the condition in many extant amphisbaenians, in which a large azygous orbitosphenoid occupies a topologically distinct area of the skull, closing the anterolateral braincase wall. Rhineura hatcherii retains a vestigial jugal and a partially fused squamosal, both of which are absent in many extant species. Sculpturing on the snout of R. hatcherii represents perforating canals conveying sensory innervation; thus, the face of R. hatcherii receives cutaneous innervation to an unprecedented degree. The HRXCT data (available at www.digimorph.org) corroborate and extend previous hypotheses that the mechanical organization of the head in Rhineura is organized to a large degree around its burrowing lifestyle. J. Morphol. © 2004 Wiley‐Liss, Inc.</div></front></TEI><affiliations><list><country><li>États-Unis</li></country><region><li>Illinois</li><li>Texas</li></region></list><tree><country name="États-Unis"><region name="Illinois"><name sortKey="Kearney, Maureen" sort="Kearney, Maureen" uniqKey="Kearney M" first="Maureen" last="Kearney">Maureen Kearney</name></region><name sortKey="Maisano, Jessica Anderson" sort="Maisano, Jessica Anderson" uniqKey="Maisano J" first="Jessica Anderson" last="Maisano">Jessica Anderson Maisano</name><name sortKey="Rowe, Timothy" sort="Rowe, Timothy" uniqKey="Rowe T" first="Timothy" last="Rowe">Timothy Rowe</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Ticri/CIDE/explor/OcrV1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 001324 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 001324 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Ticri/CIDE
|area= OcrV1
|flux= Main
|étape= Exploration
|type= RBID
|clé= ISTEX:228589B7BD4F1C6462E4FE2B225108B9C8E4878D
|texte= Cranial anatomy of the extinct amphisbaenian Rhineura hatcherii (Squamata, Amphisbaenia) based on high‐resolution X‐ray computed tomography
}}
| This area was generated with Dilib version V0.6.32. |  |