Fish Evolution to Amphibians — NEET Biology
✅ Asked in NEET 2026Slowly single-celled organisms became multi-cellular life forms. By the time of 500 mya, invertebrates were formed and active. Jawless fish probably evolved around 350 mya. Sea weeds and few plants existed probably around 320 mya. We are told that the first organisms that invaded land were plants. They were widespread on land when animals invaded land. Fish with stout and strong fins could move on land and go back to water. This was about 350 mya. In 1938, a fish caught in South Africa happened to be a Coelacanth which was thought to be extinct. These animals called lobefins evolved into the
NTA tests the transition of fish to amphibians through lobe-finned fish (lobefins) around 350 mya. These fish had strong, stout fins that allowed movement on land while maintaining aquatic access. Students often confuse jawless fish with lobe-finned fish or mistake when this invasion occurred. Remember: Coelacanth is a living fossil lobefin that proves this evolutionary pathway. Key point—only fish with muscular fins (not all fish) could transition to land and become early amphibians. This bridges aquatic and terrestrial vertebrate evolution, a fundamental concept in evolutionary history tested repeatedly in NEET.
This paragraph was tested 2 times in NEET.
Match chronology of evolution: A. About 65 mya, B. About 500 mya, C. About 350 mya, D. About 320 mya with I. Jawless fish evolved, II. Dinosaurs disappeared, III. Seaweeds and few plants existed, IV. Invertebrates were active.
The animal Coelacanth caught in South Africa is an example of vertebrate transition from: (NEET 2024)
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