...The cartilage of prolongationundergoes ossification in old horses... 
Édouard Cuyer 「Artistic Anatomy of Animals」
...In young specimens no distinct ossification of thecleithrum or ossification of endochondral centers are evident...
William E. Duellman 「Neotropical Hylid Frogs, Genus Smilisca」
...The most rapid ossification begins laterallyat the posterior edge of the orbit and decreases anteriorly over the posteriorhalf of the orbit...
William E. Duellman 「Neotropical Hylid Frogs, Genus Smilisca」
...With further ossification the maxillary processesextend to the maxillaries and form complete bony anterior margins to theorbits; the mid-parts of the nasals widen (Pl...
William E. Duellman 「Neotropical Hylid Frogs, Genus Smilisca」
...The pterygoids donot appear until metamorphosis, when ossification is evident in only the mid-partsof the posterolateral arms...
William E. Duellman 「Neotropical Hylid Frogs, Genus Smilisca」
...In dorsalview, ossification proceeds anteriorly between the nasals and posteriorly, ventralto the frontoparietals; ventrally, ossification proceeds posteriorly dorsal to theparasphenoid...
William E. Duellman 「Neotropical Hylid Frogs, Genus Smilisca」
...
Despite the great reduction in the ossification of the cranialelements, certain apparently consistent differences exist betweenthe species seem to be consistent...
William E. Duellman 「Middle American Frogs of the Hyla microcephala Group」
...This group is characterized by having broad,flat skulls with larger nasals and more ossification of the frontoparietalsthan in the Hyla microcephala group...
William E. Duellman 「Middle American Frogs of the Hyla microcephala Group」
...The frogs of the Hyla microcephala group have a minimal amountof cranial ossification as compared to more generalized hylid skulls,such as Smilisca (Duellman and Trueb, 1966)...
William E. Duellman 「Middle American Frogs of the Hyla microcephala Group」
...Despite the great reduction in the ossification of the cranialelements, certain apparently consistent differences exist betweenthe species seem to be consistent...
William E. Duellman 「Middle American Frogs of the Hyla microcephala Group」
...The agreement with Ascaphus includes the presence, in both,of a separate coracoid ossification situated posterior to the ossified"scapulocoracoid" (actually scapula)...
Theodore H. Eaton 「The Ancestry of Modern Amphibia: A Review of the Evidence」
...This ossification is evidentlythat shown in Notobatrachus as "coracoid...
Theodore H. Eaton 「The Ancestry of Modern Amphibia: A Review of the Evidence」
...Subsequent elimination of the interclavicle in theAnuran line of descent, and decrease of ossification, left a girdle likethat of Protobatrachus, Notobatrachus, Ascaphus and Leiopelma...
Theodore H. Eaton 「The Ancestry of Modern Amphibia: A Review of the Evidence」
...The ossification of carpals is more likely to be complete in adult frogsthan in salamanders, but some ossification of all parts named is foundin several of the latter...
Theodore H. Eaton 「The Ancestry of Modern Amphibia: A Review of the Evidence」
...The skull isremarkably formed, its most striking feature being thetremendous thick ossification in which it ends above thenostrils...
Various 「Natural History in Anecdote」
...The ossification does not reach the point at which the threenuclei are joined until after birth...
Ernst Haeckel 「The Evolution of Man」
...This stiffness is increased in many orders ofmammals (especially the carnassia and rodents) by the ossification of a part ofthe fibrous body (corpus fibrosum)...
Ernst Haeckel 「The Evolution of Man」
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