Are fossil dating methods accuracy defining and validating high level design metrics

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This pattern arises when species that appear on few islands occur only on the islands with the most species, while only the most widespread species are found on the islands with few species (Wright et al., 1998).The nested subset pattern arises because species differ in their distributions across space.The standard approach to looking at fossils in the geological column is to assume that lower is older.Since the geologic column represents millions of years of Earth's history, then obviously the fossils in each of the layers must be the same age as the layer in which they are found.This is because large areas include a subset of species not found elsewhere. [These features are consistent with the hypothesis of] "isolated habitat 'islands'." Using this line of reasoning, one might reasonable hypothesize that trilobites appear in the fossil record before crabs and lobsters at least party because of the relative abundance of trilobites compared to crabs and lobsters.Therefore, the nested subset pattern of species distribution in space is thought to reflect the gradient in abundance among species (Gaston, 1996; Leitner and Rosenzweig, 1997; Maurer, 1999). This hypothesis is at least plausible given the author's conclusion that, "Species identities and their relative abundances are non-random properties of communities that persist over long periods of ecological time and across geographic space.Many of the layers also show a certain specialization.Some layers contain mostly fish fossils while others contain land-dwelling creatures such as dinosaurs.

Generally, species that use a wide range of resources or tolerate a variety of abiotic conditions can establish more populations in more places than comparable species with relatively narrow niches (Brown, 1995; Cook and Quinn, 1995).

However, science is suppose to do just that - challenge ideas. Because often what seems obvious initially does not turn out to be true.

The scientific method is all about testing and retesting theories since no theory is ever proven by science.

For most scientists all of this seems so obvious that it is difficult to question.

It goes against human nature to challenge long held ideas of truth.

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