smhjn17 Posted August 26, 2015 Posted August 26, 2015 How would you arrange the following in the ascending order of evolution... Reptiles, lobefins, frog, salamander?
delboy Posted August 26, 2015 Posted August 26, 2015 Sounds like an exam question. Lobefin, reptile then (probably) frog, salamander. Source - Vertebrate Palaeontology, Benton.
smhjn17 Posted August 27, 2015 Author Posted August 27, 2015 Thnx...but how come reptiles have appeared earlier than frogs n salamanders
Arete Posted August 27, 2015 Posted August 27, 2015 Thnx...but how come reptiles have appeared earlier than frogs n salamanders They didn't. Amphibians are an older lineage than reptilia. 1
delboy Posted August 27, 2015 Posted August 27, 2015 Thnx...but how come reptiles have appeared earlier than frogs n salamanders Because frogs and salamanders are 'advanced' amphibians. The first amphibians appeared before reptiles but frogs and salamanders didn't evolve until some time later.
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