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The fossil record indicates that birds are modern feathered dinosaurs, Throughout the remainder of this article, the term "dinosaur" is sometimes used generically to refer to the combined group of avian dinosaurs (birds) and non-avian dinosaurs; at other times it is used to refer to the non-avian dinosaurs specifically, while the avian dinosaurs are sometimes simply referred to as "birds".
This article deals primarily with non-avian dinosaurs.
are the preserved remains or traces of animals, plants, and other organisms from the remote past.
The totality of fossils, both discovered and undiscovered, and their placement in fossiliferous (fossil-containing) rock formations and sedimentary layers (strata) is known as the fossil record.
Other evolutionists saw the baneful implications to their long-age dogma, and claimed that the blood vessels were really bacterial biofilms, and the blood cells were iron-rich spheres called framboids.
The development of radiometric dating techniques in the early 20th century allowed geologists to determine the numerical or "absolute" age of the various strata and thereby the included fossils.
rates of decomposition, they could not have lasted for the presumed 65 million years (Ma) since dino extinction, even if they had been kept at freezing point (never mind the much warmer climate proposed for the dinosaurs).