Information om | Engelska ordet AUTAPOMORPHIC

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• Clariid catfish are characterized by an elongated body, the presence of four barbels, long dorsal and anal fins, and especially by the autapomorphic presence of a suprabranchial organ, formed by tree-like structures from the second and fourth gill arches.
• Van der Reest & Currie in 2017 determined that due to the lack of sufficient material in the holotype, and that the dentaries of troodontids to not bear unique, autapomorphic features, Polyodontosaurus was a nomen dubium, and could not be considered senior synonym of Latenivenatrix.
• Among its autapomorphic traits is the position and development of the fossae glandulae nasales, two depressions for the nasal glands situated between the orbits of the animal.
• But their relationships are not yet robustly enough determined: The Agoriini (genera Agorius, Synagelides and maybe Pseudosynagelides) are most unusual ant mimics whose relationships are entirely obscure; they are so highly autapomorphic it is hard to tell if they are truly ancient among the salticoids, or are a very strongly divergent offshoot of one of the more conventional tribes – ant mimicry has evolved convergently 5 to 10 times in the salticoids.
• The male genital's valvae usually have complex autapomorphic modifications (such as a hypertrophied ampulla and gnathos) in this tribe, but the valvula, like in their relatives, is not distally expanded.
• Kellner and colleagues differentiated Oxalaia from it and other spinosaurids by its autapomorphic (distinguishing) craniodental features, like its sculptured palatal part of the premaxillae, and the possession of two replacement teeth in each position.
• Other autapomorphic features of this taxon are a parachoanal tooth row that extends far posterior to the choana and occipital condyles which are set close to the midline.
• The postcanine teeth are autapomorphic for the genus in being arranged in three pairs of closely placed teeth separated by longer diastemata.
• Characteristic and thus autapomorphic are their mostly pronounced hump-like elevations on the rear meso- and metanotum.
• boldi, is diagnosed by three autapomorphic features of the skull that differentiate it from all other eryopids: (1) the relatively narrow posterior skull table, therefore nearly parallel lateral margins of the skull; (2) the short postparietals and tabulars; and (3) the wide ectopterygoid.

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