| 11. | With the frequent convergent evolution of head shape in labyrinthodonts, this led to form taxa only.
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| 12. | A consensus on origin of lissamphibians and relationship between the various labyrinthodonts is not likely to materialise soon.
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| 13. | American paleontologist Ermine Cowles Case called it Labyrinthodonta " vera " or " true labyrinthodonts ".
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| 14. | The first labyrinthodonts were all large to moderately large animals, and would have suffered considerable problems on land.
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| 15. | By the Visean age of mid-Carboniferous times the labyrinthodonts had radiated into at least three main branches.
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| 16. | "' Xenobrachyops "'is an extinct genus of labyrinthodont amphibian from the Triassic of Australia.
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| 17. | They were described at various times as batrachians, stegocephalians, and labyrinthodonts, although these names are now rarely used.
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| 18. | For information on the ancestors of reptiles, traditionally classified as labyrinthodont amphibians, see Reptiliomorpha ( reptile-like tetrapods ).
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| 19. | The cranial vault as a distinct unit arose with the fusion of the skull roof and the endocranium on the early Labyrinthodonts.
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| 20. | The teeth lack labyrinthodont folding of the enamel, and it skull has a much smaller otic notch then seen in other reptiliomorph amphibians.
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