Cotyla


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Cot´y`la


n.1.(Anat.) A cuplike cavity or organ. Same as Acetabulum.
References in periodicals archive ?
It articulates with the skull in two distinct places: 1) through the external optical process (Capitulum squamosum), supported in the ventro-caudal facet of the zygomatic process and 2) by the internal optical process (Capitulum oticum) that articulates with the cotyla quadrdtica and otici of the pro-optical and opisthotic bones, processes of homogeneous configuration amongst the species.
The lateral condyle of the quadrate still has the cotyla quadrato jugalis (Cy), which articulates with the condyle quadraticus of the jugal bar, it is a subtle depression through which the jugal bar articulates with the quadrate, being conspicuous in these species.
Tad: latero-medial diameter of mid-shaft of the tarsometatarsus Tap: latero-medial width of the proximal end taken extreme points of both cotyla. Tpp: antero-posterior width of the proximal end, taken from the most extreme point of hypotarsus to the most extreme point of anterior edge.
Small sized bird distinguishable from other cimolopterygids by the following combination of features: 1) an extended and large procoracoid process; 2) humeral articular surface sub-rectangular in contour; 3) scapular cotyla transversely elongate with respect to the long axis of the coracoid.
We refer these specimens to the extinct tadornine genus Anabernicula rather than to Anas because of these characters: coracoid - Sulcus musculo supracoracoidei deep, Cotyla scapularis deep, Processus procoracoideus rugose in dorsal aspect with subparallel lineations, Facies articularis sternalis deep and distinct in dorsal aspect; tibiotarsus - Condylus medialis narrow; in distal aspect, intercondylar region relatively shallow.
The trunk vertebrae exhibit features characteristic of Rhinocheilus lecontei as enumerated by Hill (1971), namely flat zygosphenes in anterior view; obovate to oval prezygapophysial faces; thick neural spines (within the colubrines) that are also flat dorsally, overhanging centra posteriorly, with indented anterior and posterior edges; short centra, no epizygapophysial spines; depressed neural arches; round to slightly compressed cotyla; postzygapophysial faces that are obovate to orbicular, strongly developed hemal keels and subcentral ridges, and swollen, very flat accessory processes.
Na face dorsal da porcao caudal da mandibula, constata-se a fossa articular quadratica (fossa articularis quadratica, FAQ: Figura 1E) delimitada pela cotila lateral (cotyla lateralis, CoL: Figura 1E) e pela cotila medial (cotyla medialis, CoM: Figura 1E), que se mostramse conspicuas na especie analisada, e pelo bem desenvolvido processo medial (proc.