Kids definition radiometric dating

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Despite its somewhat outdated view of dinosaurs (presenting them as slow, sluggish creatures), The Age of Reptiles is still notable for its historical and artistic merit and as the largest natural history painting in the world.It has been an inspiration to many visitors including both Robert Bakker and Peter Dodson, who credit it with influencing them to become paleontologists.Nevertheless, "amphibian" can still be used in a generic sense to refer to any non-amniotic tetrapod. Anagenesis the evolutionary transformation of one species over time into another, resulting in the emergence of a new character or attribute (which in this case a new species) from an older one. Ancestor in this context, an organism, or more correctly a population, lineage, or species, that through evolution gives rise to one or more descendants that generally belong to a distinct species or lineage. Ancient Astronaut theory new age meme advocated by Erich Von Däniken, according to which extraterrestrials were involved in, or are responsible for, human evolution. Generally does not try to explain where the rest of life (or the aliens themselves, for that matter! A more recent iteration can be found in Ridley Scott's movie Prometheus. Ankylosaur herbivourous armoured mostly Cretaceous "bird hipped" dinosaurs with rows of bony plates protecting the sides and back, and armed with either spikes along the sides or a bony club at the end of the trail Anthropocentrism, anthropocentric Centering on humans and considering or relating all other things to man; for example the biblical idea that only man has a divine soul, or the belief that humans are of greater moral worth than other species; the practice, conscious or otherwise, of regarding the existence and/or concerns of human beings as the central fact of the universe. Since each presents strong arguments, we defer trying to decide which paradigm is correct.

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Due to constraints of time, I have not hyperlinked the entries, nor is this listing complete.

In addition, because of limitations of time and energy, or perhaps just sheer laziness and apathy, I have for the most part only included on-line references, which are easier to copy and paste ;-) Age of Mammals term found in popular books on evolutionary systematics for the Cenozoic era, beginning with the Paleocene Epoch when following the K–T (end Cretaceous) mass extinction, mammals underwent a huge evolutionary radiation and thus replaced reptiles as the dominant life on Earth.

Dodson was nearly moved to tears upon first seeing it as a college senior.

Editor's note: In my own case (MAK), a photo of this mural in a book (I no longer remember which one) when I was still a young child (maybe 10 or so) exerted a huge influence on me, like a revelation, and for the first time gave me a visual appreciation of deep time in terms of succession and transformation of various forms of plant and animal life.

They are often equally at home on land and in water, hence the name "amphibian", derived from the Greek terms ἀμφίς‚ (amphis, "on both sides") and βίος‚ (bios, "living").

Morphologically and ecologically diverse during the late Paleozoic era, including aquatic, semi-aquatic, and terrestrial newt, snake, crocodile, and frog analogues.Inevitably there is some duplication with other glossaries.Some of the references and source material used in compiling this list include Wesley R.Agnatha name given to what was previously considered a class of jawless fish, including both Paleozoic ostracoderms and extant lampreys and hagfish.With the cladistic revolution, the term has been replaced by more phylogenetically accurate terms such as "basal vertebrate". Algorithm In mathematics and computer science, an effective method (a procedure that reduces the solution of some class of problems to a series of rote steps that give a specific and correct answer) expressed as a finite list of well-defined instructions for calculating a function.The Age of Mammals has in turn been replaced by the Anthropocene or Age of Man, (Holocene) when humans dominate every conceivable environment and most other life forms (apart from weedy species) are suffering a mass extinction (Yes, I know humans are also mammals, so technically speaking this is still the Age of Mammals, but I tend to think of the Age of Mammals as a period of flourishing biodiversity).Age of Reptiles term found in popular books on evolutionary systematics for the Permian through to Cretaceous periods (but obviously originating with Victorian discoveries of "antediluvian monsters"), when reptiles (first mammal-like reptiles, then archosaurs and marine reptiles) were the dominant life on Earth.Paleontologist Edwin Colbert wrote a popular intelligent layperson book with the same title.The Age of Reptiles was followed by the Age of Mammals.Algorithms are used for calculation, data processing, and automated reasoning.Amoeba A microscopic, single celled protozoan consisting of a naked mass of protoplasm.


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