ectopterygoid


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ectopterygoid

[¦ek·tō′ter·ə‚gȯid]
(vertebrate zoology)
A membrane bone located ventrally on the skull, situated behind the palate and extending to the quadrate; found in some fishes and reptiles.
References in periodicals archive ?
Referral of the specimens to Clevosaurus is based on the presence of a lateral contact between the ectopterygoid and palatine, which excludes the maxilla from the margin of the suborbital fenestra, and the presence of a long, posteriorly extending dorsal process of the jugal (Sues et al.
fittkaui depicts a large endopterygoid, which reaches the posterior border of the dermopalatine, and a small ectopterygoid that does not reach this point.
QC3, quantification code 3, identified to family: basi-branchial, basioccipital, basipterygium, ceratohyal, coracoid, ethmoid, ectopterygoid, epihyal, exoccipital, frontal, hyomandibular, interhyal, interopercular, lacrimal, lower hypohyal, opercular, opisthotic, otolith, palatine, prefrontal,' preopercular, prootic, pterotic, supracleithrum, scapula, supraoccipital, sphenotic, symplectic, urohyal, upper hypohyal.