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Funcusvermis is an extinct genus of stem-caecilian from the Late Triassic of Arizona.It is based on a large sample of jaws and other skull and postcranial fragments, discovered in an approximately 220 million years old layer of rock in the Blue Mesa Member of the Chinle Formation at Petrified Forest National Park.
Bicuspid teeth (two cusps per tooth, also found in juvenile dissorophoids) Operculum (small bone in the skull, linked to shoulder girdle by the opercularis muscle; perhaps involved in hearing and balance; absent in caecilians and some salamanders, fused to the columella (ear bone) in most anurans)
Caecilians feed on small subterranean creatures such as earthworms. The body is cylindrical and often darkly coloured, and the skull is bullet-shaped and strongly built. Caecilian heads have several unique adaptations, including fused cranial and jaw bones, a two-part system of jaw muscles, and a chemosensory tentacle in front of the eye. The ...
Like C. jenkinsi and modern caecilians, there is a second row of teeth on the coronoids that lie medial to the primary marginal row on the dentary, a feature originally proposed to link C. jenkinsi to this modern group [4] but subsequently disputed as such a feature occurs in some other stereospondyls.
One of nearly 200 caecilian species, Kaup’s aquatic caecilian is a legless amphibian. As Baker said, “It’s very odd because most people are unfamiliar with a legless amphibian.”
Ymboirana was an extinct genus of caecilian described based on a fossil found in the Oligocene Tremembé Formation (Taubaté Basin), Brazil.The holotype and only known specimen comprises a partially preserved skeleton, including parts of the skull and vertebral column.
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The labyrinthodonts flourished for more than 200 million years. Particularly the early forms exhibited a lot of variation, yet there are still a few basic anatomical traits that make their fossils very distinct and easily recognizable in the field: Strongly folded tooth surface, involving infolding of the dentin and enamel of the teeth.