{"title":"A SURVEY OF STATE OF OSSIFICATION IN NEONATAL SQUAMATES","authors":"J. Maisano","doi":"10.2307/1467041","DOIUrl":null,"url":null,"abstract":"The state of ossification of the skeleton at hatching or birth and shortly thereafter is described and compared for 21 squamate species. The presence in the neonate of metapodial ossification centers and epiphyseal secondary centers varies among species, whereas the appearance of apophyseal ossifications and endochondral calcifications and the ossification of sesamoid precur- sors are predominantly postnatal phenomena. The data suggest a possible causal relationship be- tween viviparity and skeletally immature neonates, whereas state of ossification at hatching or birth is probably attributable to phylogeny overall. Of the clades represented in this investigation, phry- nosomatids, teiioids, and amphisbaenians exhibit the most skeletally mature neonates, whereas the reverse is true of gekkotans, xantusiids, and anguids.","PeriodicalId":56309,"journal":{"name":"Herpetological Monographs","volume":null,"pages":null},"PeriodicalIF":1.1000,"publicationDate":"2001-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2307/1467041","citationCount":"81","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Herpetological Monographs","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.2307/1467041","RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ZOOLOGY","Score":null,"Total":0}
引用次数: 81
Abstract
The state of ossification of the skeleton at hatching or birth and shortly thereafter is described and compared for 21 squamate species. The presence in the neonate of metapodial ossification centers and epiphyseal secondary centers varies among species, whereas the appearance of apophyseal ossifications and endochondral calcifications and the ossification of sesamoid precur- sors are predominantly postnatal phenomena. The data suggest a possible causal relationship be- tween viviparity and skeletally immature neonates, whereas state of ossification at hatching or birth is probably attributable to phylogeny overall. Of the clades represented in this investigation, phry- nosomatids, teiioids, and amphisbaenians exhibit the most skeletally mature neonates, whereas the reverse is true of gekkotans, xantusiids, and anguids.
期刊介绍：
Since 1982, Herpetological Monographs has been dedicated to original research about the biology, diversity, systematics and evolution of amphibians and reptiles. Herpetological Monographs is published annually as a supplement to Herpetologica and contains long research papers, manuscripts and special symposia that synthesize the latest scientific discoveries.
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