Information om | Engelska ordet BASIPTERYGOID

Exempel på hur man kan använda BASIPTERYGOID i en mening

• Benton also indicated some unique derived traits, or autapomorphies, for the species: a long basipterygoid process on the braincase; a dentary that is short in relation to the total length of the lower jaw; an ilium that has a back end that is subquadrate instead of rounded.
• At the underside of the braincase, the basisphenoid, the basipterygoid processes are longitudinally stretched.
• It also has a more limited angle of 90° between the ventral surfaces of the basioccipital and the basisphenoid, and more caudally, to the rear, situated basipterygoid processes.
• It is distinguished from other titanosaurs by characteristics of its braincase, including the basal tubera, basipterygoid processes, parasphenoid, and cranial nerve foramina.
• 4 as long as the frontals; the length of the frontal being almost four times greater than its width; the frontals narrowing towards the rostrum into a narrow wedge; the prefrontals adjoining each other towards the middle; the basipterygoid processes being two-thirds as high as the quadrates; the dentaries form a deep and rostrally tapering depression; extensive mandibular fenestrae; narrow centra of cervical and anterior caudal vertebrae; the deltopectoral crest being separated from the humeral head by a notch; the basal phalanx of the major digit of the manus is extended, with its flanks moderately wide, and a narrow and symmetrical distal condyle; the postacetabular plate of the ilia possessing a relatively small longitudinal craniomedial crest; a strongly curved femora that is nearly half as long as tibiotarsus; a distinct fourth trochanter; an undeveloped cnemial crest of the tibiae; an ascending process of the astragali that is high and wide; the tarsometatarsals being 1.
• Schoch & Milner (2014) listed seven features in the diagnosis of Ecolsonia: (1) tabular and squamosal frame otic fenestra; (2) prefrontal and postfrontal separated (shared with most other trematopids); (3) preorbital region of equal length to posterior skull table; (4) vomer with a posteromedial process meeting the pterygoid (shared with other trematopids); (5) a supratemporal that is twice as long as it is wide; (6) triangular patch of denticles on the parasphenoid (shared with other trematopids); and (7) basipterygoid region unsutured (shared with some other trematopids).
• Dilkes (1990) diagnosed Phonerpeton by the semilunar curvature of the squamosal, doming of the parietals along the midline, a closed basicranial joint with a clear suture between the pterygoid and the basipterygoid process of the parasphenoid (the basicranial joint), an unossified sphenethmoid, long and slender mid-dorsal ribs, a radius with a semicircular cross section, and a ridge along the anterolateral edge of the ulna.
• Many hypothesized types of kinesis require basal joint kinesis (neurokinesis of Iordansky, 1990), that is, movement between the braincase and palate at the basipterygoid joint.
• 86 times as long as they are wide, slender basipterygoid projections on the basisphenoid, a bone of the lower braincase, an atlas intercentrum that is horseshoe-shaped in cross-section, slender diapophyses, thin spines of the dorsal vertebrae and sacral vertebrae, the possession of a clear keel at the bottom of the sacral vertebrae, and an ilium with on the inner side a distinct ridge along the edge of the hip joint.
• Ruta & Bolt (2006) listed an extensive number of features that contribute to a unique combination of features, such as a frontal entering the orbit; orbits positioned at the approximate midlength of the skull; the absence of lateral line grooves; and parasphenoid denticles restricted to the region anterior to the basipterygoid processes.
• macrorhinus: (1) naris extending posterior to the septomaxilla, with the shape of a sideways '8'; (2) narrow interorbital distance; (3) large postfrontal; (4) frontal twice as wide anteriorly as it is posteriorly; (5) large denticle field extending onto the base of the cultriform process; (6) slender basipterygoid process of the pterygoid extending onto the basal plate of the parasphenoid.
• The parabasisphenoid bone at the bottom of the braincase has a semilunar depression like that of Venaticosuchus, but the gap between its basipterygoid processes and basitubera is less acute than in that taxon.
• Both groups can be distinguished by the anatomy of the basisphenoid, which is distinctly narrower before the basipterygoid crest, has shorter vidian canals and anterior orifices on the ventral rather than the dorsal surface.

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