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This species is a relative large frog with a snout–to–vent length of 5.8 to 8 cm (2.3–3.1 in). It has numerous sharp, pointed projections on the head and dorsal surface, hence the common name. [7] The skin on the head is fused to the skull and the tympanum is very large. The legs are long and slender and the digits have adhesive discs at ...
Fossil frogs are rarely found as multiple articulated skeletons, therefore the discovery of this taxon has provided important insight into anuran evolution. [5] [6] The holotype, IVPP V11525, is known from a nearly complete skeleton exposed in a dorsal view on a shale slab.
Unlike poison dart frogs which merely secrete poison from their skin, this species is equipped with skull spines capable of injecting venom into other animals or human hands via headbutting, a tactic it shares with Corythomantis greeningi. [4] [5] The venom of A. brunoi is estimated to be 25 times as toxic as that of local fer-de-lance pit ...
Kermit the Frog meet Kermitops gratus, the most recent ancient amphibian to be identified after examination of a tiny fossilized skull that once sat unstudied in the Smithsonian fossil collection ...
Temporal fenestrae in relation to the other skull openings in the dinosaur Massospondylus, a type of diapsid. The supratemporal fenestra, also called the upper temporal fenestra, is positioned above the other fenestra and is exposed primarily in dorsal (top) view. In some reptiles, particularly dinosaurs, the parts of the skull roof lying ...
The head is longer than it is wide. The snout is obtusely pointed in dorsal view and round in profile. The tympanum is visible. The finger and toe tips are expanded into discs. The toes are fully webbed. The dorsum is green to coppery-brown, sometimes with markings. Dark brown band runs from the side of head to the dorsal half of flank.
The skull of Triadobatrachus is frog-like, being broad with large eye sockets, but the fossil has features diverging from modern frogs. These include a longer body with more vertebrae . The tail has separate vertebrae unlike the fused urostyle or coccyx in modern frogs.
Another difference between the skull of Kaprosuchus and those of other crocodyliforms that also possess dorsoventrally compressed snouts is the great depth of the posterior portion of the skull. In Kaprosuchus, the orbits (i.e., eye sockets) open laterally and are angled slightly forward rather than upward.
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