How long did individual species of dinosaurs live, and how do you think that relates to humans?

Question

Many people believe that dinosaurs originated 230 million years ago, and died out 65 million years ago, and basically ruled the earth for millions of years. The thing is that there were many different kinds, that lived at different times. It's estimated, with DNA evidence, that the first humans appeared about 200 thousand years ago. So do we know how long a species of dinosaur or any other type of animal that dominated the world at the time actually lived on Earth (not a single animal, but the species' span from beginning to end)? If we do, how large is that number, and do you think that statistic has an effect on how much longer humans have? Please note that I don't mean to be ignorant of religion and the Day of Judgement, but I assume that science and God are sort of connected. Feel free to include your opinion in your answer, as long as you answer the question.

Thanks in advance.

Answer 1

It varies alot and the evidence is pretty sparse.  It is impossible to say for example that a certain species went extinct or simply moved to another place or simply hasn't been found.  Some dinosaur species existed for millions of years.  Others are known from a single bone and not much can be concluded.  Dinosaur fossils are typically found in terrestrial (land) deposits.  Terrestrial deposits are not particularly conducive to leaving fossils.  Some animals slowly evolved.  Some animals if left in a very stable habitat, don't change much at all over time.  Humans may have millions of years or decades.  Also you have to realize that some dinosaurs or dinosaur like animal evovled into birds which continued to present.   The animals in that line didn't go extinct, they simply evolved over time.

Answer 2

Recent analysis of dinosar bones determined a "tree like" structure of rings, indicting a year for each ring,  in their large bones.  It was determined that they reached reproductive age in their mid teens, but tended to die of old age before age 30.  The oldest T-Rex fossile, a female, appears to have died of old age at about age 29.  

Recent extraction of some T-Rex DNA, from a thigh bone,  indictes they were closely related to flightless birds.  Therefore some see the possibility of "reverse engineering" DNA from one of the large flightless birds to produce some of the dinosars that have long been extinct.

Homo erectus appears to have had the longest period of survival among hominids as they appeared ~2.4 million yrs ago & appear to have lasted until ~30,000 yrs ago.  That of course gets into the argument over total evolution in Africa or some regional evolution by mixing between sapien, erectus & neanderthal.

Answer 3

Various species of dinosaur fossils began to show up, from between 250 & 230 million years ago, although some may have "died out" sooner, all of them died out 65 million years ago, after an asteroid strike is believed to have caused an extended "nuclear winter", which killed off most vegetation, which was the food source for these enormous creatures!

Humans, probably don't have more than one million years left on this planet, as conditions are predicted to become too hot by then (Average temperature of 120 degrees then, as opposed to an average of 70 degrees now). If we can colonize mars, then our species will have a better chance to survive, longer!

Answer 4

Evolution of life on this planet has been a sweeping on-going process.  And, all species continue to learn, adapt, change and evolve.  One group of dinosaurs is known to have survived the extinction event.  Birds today grew slowly in little changes each generation from certain kinds of dinosaurs long ago. http://www.dinosaurisle.com/images/Timel...

http://en.wikipedia.org/wiki/Geologic_ti...

Here is the geologic time scale of the Earth from its beginning.  When this site opens, scroll down to see the three graphical timelines.   The top timeline is the whole timeline of the Earth.  On that top timeline, see at the far right of it the pale blue eon called Phanerozoic.  That eon is when dinosaurs lived, and later, humans.

Now, look at the second timeline.  The second timeline is an enlargement of just that pale blue Phanerozoic eon.  The Phanerozoic eon is divided into 3 eras, shown blue, green and yellow.  Dinosaurs dominated the Earth during the blue and green eras (Paleozoic and Mesozoic.)

http://www.kidcyber.com.au/topics/dino_e...

The third eon on that 2nd timeline is yellow (Cenozoic eon).  At the end of that era, humans appear.  The 3rd timeline opens up that yellow Cenozoic eon.  At the far right is a tiny pale yellow epoch called Pliocene.  That's human times.

Answer 5

It is an indisputable fact that dinosaurs and humans lived in the same time.

Look at the foot prints in the same dried up river bed.

http://evolution-facts.org/