The origin of tetrapods - Understanding Evolution
网页Tetrapods evolved from a finned organism that lived in the water. However, this ancestor was not like most of the fish we are familiar with today. Most animals we call fishes today are ray-finned fishes, the group nearest the root of this evogram.
Evolution of tetrapods - Wikipedia
网页Recognizable early tetrapods (in the broad sense) are representative of the temnospondyls (e.g. Eryops) lepospondyls (e.g. Diplocaulus), anthracosaurs, which were the relatives and ancestors of the Amniota, and possibly the baphetids, which are
The Evolution of the First Tetrapods - ThoughtCo
网页2019年2月24日 · Scientists once agreed that the earliest true tetrapods dated from about 385 to 380 million years ago. That has all changed with the recent discovery of tetrapod track marks in Poland that date to 397 million years ago, which would effectively dial back the evolutionary calendar by 12 million years.
Early tetrapods had an eye on the land - Nature
网页2019年10月23日 · Early tetrapods had an eye on the land. Fossil finds that can provide clues about how aquatic vertebrates evolved into land dwellers are elusive. But the ancient bones of a newly discovered...
The Rise of the Tetrapods: How Our Early Ancestors Left Water …
网页2021年4月5日 · Acanthostega and Ichthyostega represent the most complete surviving fossils we have discovered of the earliest tetrapods, a group whose descendants would be the first vertebrate creatures to leave the oceans and walk on land.
New clues emerge on how early tetrapods learned to live—and …
网页2021年2月4日 · New research out of the University of Chicago has found evidence that the lobe-finned fish species Tiktaalik roseae was capable of both biting and suction during feeding, similar to modern-day fish called gars.
Euryhaline ecology of early tetrapods revealed by stable isotopes
网页2018年5月31日 · An approach using multiple stable isotopes reveals that early tetrapods of the Devonian period were euryhaline animals that inhabited aquatic environments of highly variable salinity.
Hidden morphological diversity among early tetrapods | Nature
网页2017年6月21日 · Phylogenetic analysis of early tetrapod evolution has resulted in a consensus across diverse data sets 1, 2, 3 in which the tetrapod stem group is a relatively homogenous collection of...
Rise of the Earliest Tetrapods: An Early Devonian Origin from
网页2011年7月14日 · Abstract. Tetrapod fossil tracks are known from the Middle Devonian (Eifelian at ca. 397 million years ago - MYA), and their earliest bony remains from the Upper Devonian (Frasnian at 375–385 MYA). Tetrapods are now generally considered to have colonized land during the Carboniferous (i.e., after 359 MYA), which is …
Tetrapod Evolution - Evolutionary Biology - Oxford Bibliographies
网页2019年2月27日 · The tetrapod crown (the smallest clade that includes lissamphibians and amniotes) first appears in the fossil record in the Early Carboniferous. The group subsequently diversified fairly quickly and occupied a diversity of habitats (saltwater, freshwater, and terrestrial) by the Early Carboniferous.
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