ichthyostegalia meaning in Hindi

Examples

1. The various early forms are for convenience grouped together as Ichthyostegalia.
2. Unlike modern temnospondyl classification, however, Romer included the primitive Ichthyostegalia in the group.
3. Older taxons that include late stem tetrapods and early tetrapods are the Labyrinthodontia and Ichthyostegalia.
4. The period also saw the demise of the Ichthyostegalia, the early fish-like amphibians with more than five digits.
5. With the reinterpretation of the Ichthyostegalia as aquatic forms, baphetids are good candidates for the spot of first labyrinthodont group to actually spend substantial time on land.
6. Both Ichthyostegalia and Labyrinthodontia constitute paraphyletic evolutionary grades rather than clades, with amniotes and modern amphibians, whose position in the phylogenetic tree dictates what lineages go in the crown group Tetrapoda.
7. The feet had characteristics that distinguished it from the paddle-like feet of the Devonian Ichthyostegalia and resembled the feet of later, more terrestrially adapted Carboniferous forms . " Pederpes " is the earliest-known tetrapod to show the beginnings of terrestrial locomotion and despite the probable presence of a sixth digit on the forelimbs it was at least functionally pentadactyl.