Jurassic

I see what you mean. If I remember right, the archaeopteryx lived during the jurassic, the osrtrich mimics lived in the late cretaceous, and so did the gigantoraptor. All of them were very birdlike yet seem unrelated. Could the dinosaurs have branched off towards ...

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... organized and concise? You obviously put a great deal of time into that but it's extremely hard to follow... On the bright side it reminds me of Jurassic Park :P Just thought it deserves mentioning that carbon dating is used only as far back as 60 000 years; after that radio active elements with ...

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... organized and concise? You obviously put a great deal of time into that but it's extremely hard to follow... On the bright side it reminds me of Jurassic Park :P But let us also think of the quondam environment of the enormous coastal animals. More oxygen in atmosphere supposes more intensive ...

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We live and learn :) Currently the earliest birds appeared in the fossile record around the late Jurassic to early Cretaceous periods.

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... distinct and completely different to the others... Don't think I could add anything substantial to this, for birds it evolved during the late Jurassic period (the first "bird" being Archaeopteryx , though it's believed it wasn't capable of true flight, only vertical climbing). Their ...

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