Sentences with phrase «other trace fossils»
Not exact matches
'' Evolution can be traced back through fossils, DNA, and all the other things posted for you and others at intervals.»
http://religion.blogs.cnn.com/
Amongst the other fossil discoveries are fossil plants, insect traces, clams, fishes, amphibians, lizards, turtles, crocodiles, and mammals.
Along with more than 100 other fossils representing nearly 40 other Ardipithecus individuals, Ardi was discovered in the scorched landscape of Ethiopia's Afar Rift, a place where torrential rains regularly wash up traces of ancient stone and bone from different eras.
He compared the ancient skull with dozens of other fossils and modern skeletons to look at the whole genus and trace major changes, or the lack thereof, in alligator morphology.
Martin often leads student field trips to Georgia's coast and barrier islands, where he studies modern - day tracks and other life traces, to help him better identify fossil traces.
Unlike microcrystals, for example, the tubules have complex forms — often observed abruptly changing direction to avoid intersecting each other, in a manner consistent with tunneling microbial behavior — and contain organic molecules associated with biological activity; the Ries tubules are also similar to fossil traces of microbes found in volcanic glass.
A fossil is the remains or traces of a once - living plant or animal that was preserved in rock or other material before the beginning of recorded history Carbon - 14, 14 C, or radiocarbon, is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.
Assessment of fossil fuel carbon dioxide and other anthropogenic trace gas emissions from airborne measurements over Sacramento, California in spring 2009
And while theoretically an increase of a few hundred ppmv of CO2 (and smaller quantities of other trace GHGs) might «exert a steady, constant upward forcing on temperature», this upward forcing is constrained by the amount of GHGs emitted by humans based on the C availability in the remaining fossil fuels.