Hh
Wiki User
∙ 6y agoAnonymous
Wet
Yes!
Stoned - Puddle of Mudd song - was created on 2010-03-08.
admonish! (:
Rocks,water,dirt,leaves,sticks.
Control by Puddle of Mudd from the album Come Clean
Dry
jump
Mass extinction
-The tendency of loss at extinction boundaries to appear, because of incomplete sampling, more gradual in the fossil record than it actually was during the extinction event.
-The tendency of loss at extinction boundaries to appear, because of incomplete sampling, more gradual in the fossil record than it actually was during the extinction event.
The tendency of loss at extinction boundaries to appear, because of incomplete sampling, more gradual in the fossil record than it actually was during the extinction event.
Scientists believe that there may have been a global extinction event, such as a mass extinction, that wiped out many existing species during that time period. This lack of fossil evidence could indicate a period of reduced biodiversity or environmental conditions that were not conducive to fossil preservation.
Georges Cuvier, a French naturalist, is credited with proposing the concept of species extinction in the early 19th century. Cuvier observed fossil evidence of species that no longer existed and theorized that they had become extinct due to catastrophic events in the past.
There is no actual place which extinction occurred as dinosaurs are represented on every continent by both extant species and fossil remains.
During the KT extinction event the majority of life on earth became extinct. Small mammals, however, were able to survive this mass extinction.
Fossils can provide information about what lived in the past. By comparing the fossils to their modern counterparts, scientists can also provide us with information about the environment in which the rock containing the fossil was deposited. Also, fossils can be used as time indicators. This can be important when trying to piece together the history of a continent because the fossil can be used to compare the ages of rocks that are separated by great distances. In a nutshell, the fossil record can provide evolutionary information on extinction and diversification, how they died off, what their life was like, what their time period was like, and what they evolved into.
The original observation was that in the fossil records there is a layer with high levels of iridium and osmium at the time of dinosaur extinction. Iridium and osmium are common is asteroids. For the layer to be all over the globe it must have been a major strike which would have caused global wide climate change causing a mass extinction.