labyrinthodont वाक्य
उदाहरण वाक्य
मोबाइल
- The earliest reptiles were largely overshadowed by bigger labyrinthodont amphibians, such as " Cochleosaurus ", and remained a small, inconspicuous part of the fauna until after the small ice age at the end of the Carboniferous.
- Analysis of the " columella " ( the stapes in amphibians and reptiles ) of labyrinthodonts however indicates that it did not function in transmitting low-energy vibrations, thus rendering these animals effectively deaf to airborne sound.
- Advanced forms transitional between fish and the early labyrinthodonts, such as " Tiktaalik ", have been referred to as " fishapods " by their discoverers, being half-fish, half-tetrapods, in appearance and limb morphology.
- Though the end-Triassic extinction event was not equally devastating in all terrestrial ecosystems, several important clades of thecodonts ) disappeared, as did most of the large labyrinthodont amphibians, groups of small reptiles, and some synapsids ( except for the proto-mammals ).
- ""'Diplovertebron " "'is an extinct genus of Anthracosauria ( Labyrinthodont ) that lived in the Late Carboniferous Moscovian ) ( 300 million years ago ) . " Diplovertebron " was a medium-size animal, 60 cm in length.
- Most labyrinthodonts had special sense organs in the skin, forming a lateral line organ for perception of water flow and pressure, like those found in fish and a number of anurans and amniotes appear to have evolved separately, indicating most, if not all, Labyrinthodonts were unable to pick up airborne sound.
- Most labyrinthodonts had special sense organs in the skin, forming a lateral line organ for perception of water flow and pressure, like those found in fish and a number of anurans and amniotes appear to have evolved separately, indicating most, if not all, Labyrinthodonts were unable to pick up airborne sound.
- Unlike labyrinthodonts, they did not have parietal foramena, small holes in their skulls behind their eye sockets . " Archegosaurus ", " Dendrerpeton ", " Eryops " and " Trimerorhachis " were placed in this group and were considered to be the most primitive members of Reptilia.
- Given that among the hallmarks of amphibians are an obligatory return to a body of water to lay eggs, a delicate skin prone to desiccation ( thereby often requiring the amphibian to be relatively close to water throughout its life ), and a reputation of being a bellwether species for disrupted ecosystems due to the resulting low resilience to ecological change, amphibians were particularly devastated, with the Labyrinthodonts among the groups faring worst.
- Early groups like " Acanthostega " had eight digits, while the more derived " Ichthyostega " had seven digits, the yet-more derived " Tulerpeton " had six toes . or reptiliomorphs, retained the five-toe pattern still found in Amniotes, while further reduction had taken place on other Labyrinthodont lines, leaving the forefoot with four toes and the hind foot with five, a pattern still found in modern amphibians.
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