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Liky

Don't you think there are too few dinosaur species ?

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Liky

Considering the length of time they lived it seems there are not just too few but unbelievably few species that people have discovered, don't you agree ? Also this leads me to the question which I could not find an answer to in google... that must mean something. How did the biological variety change though the course of the planets history. Is there a way we can know, were there more animal and plant species 1, 10, 100 million  years ago?

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Troodon

Dinosaur paleobilogist Thomas Holtz's,  on-going chart of dinosaur species (Mesozoic dinosauromorphs, to be exact) named from 2003 onward

 

The average for 2003-2017 is 45, so nearly 1 per week.

DgZ6KNQXUAUEkSQ.thumb.jpeg.cf9e98215e2684c0555e01d7668b8f8a.jpeg

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TyBoy
On 6/23/2018 at 5:04 PM, Troodon said:

Dinosaur paleobilogist Thomas Holtz's,  on-going chart of dinosaur species (Mesozoic dinosauromorphs, to be exact) named from 2003 onward

 

The average for 2003-2017 is 45, so nearly 1 per week.

DgZ6KNQXUAUEkSQ.thumb.jpeg.cf9e98215e2684c0555e01d7668b8f8a.jpeg

Interesting chart the average of 1 per week it's pretty remarkable

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Troodon

Probably biased with a huge 2010.   40 per year looks more a nominal rate

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