Antorbital


Also found in: Medical.

Ant`or´bit`al


a.1.(Anat.) Pertaining to, or situated in, the region of the front of the orbit.
References in periodicals archive ?
Antorbital and forehead secretions of black-tailed deer (Odocoileus hemionus columbianus): their role in age-class recognition.
Cinco huesos infraorbitales presentes, segundo infraorbital mas ancho de la serie, tercer infraorbital no en contacto con el canal laterosensorial del preoperculo, quinto infraorbital mas pequeno de la serie, canal sensorial de los infraorbitales sobrepasan el primer infraorbital y se continua con el antorbital. Supraorbital ausente.
Feduccia remarks that, besides sharing the antorbital fenestra, basal archosaurs are characterized by "a lower temporal bar, a relatively short neck, and a single row of conical teeth" in the upper and lower jaws.
A phylogenetic analysis of Hemibrycon determined its monophyly based on four synapomorphies: ectopterygoids with widened ventral anterior projection, four to six times wider than posterior part; a red spot present in life on ventral margin of caudal peduncle; a postero-ventral projection on the pterotic and first infraorbitals gradually decreasing in width from posterior tip and located near posterior part of antorbital (Arcila-Mesa 2008).
Presencia de un elemento oseo sobre el palatino y detras del maxilar, con un canal sensorial asociado, este elemento puede ser considerado como el infraorbital 1 o 2, aunque Arratia y Menu-Marque (1984) lo denominan antorbital. Nasal e infraorbital 6 no osificado, aunque se detectan facilmente.
Extremo postero ventral del antorbital en contacto con el extremo anterior del maxilar: (0) ausente; (1) presente.
First laterosensorial infraorbitals canal in contact with the posterior end of antorbital. Third infraorbitals long, wide, with ventral and posterior borders in contact with preopercle.
Seis huesos infraorbitales presentes, tercer infraorbital mas largo y ancho, no en contacto con el canal laterosensorial del preoperculo, sexto infraorbital mas pequeno de la serie, canal sensorial de los infraorbitales sobrepasan el primer infraorbital y no se continua con el antorbital. Supraorbital ausente.
A small antorbital fenestra is present and the postorbital bar is approximately at right angles to the long axis of the skull so that the posterior border of the orbit is situated well in advance of the supratemporal opening.