phyletic series A sequence of fossil forms that represent the succession of species in the evolution of a particular lineage. Often there are gaps in the fossil record, and phyletic series are incomplete. However, in some cases the fossil record is good, and a more complete phyletic series can be constructed. For example, most of the intermediate forms between the modern horse (Equus) and its dog-sized ancestor, Hyracotherium (Eohippus) of the Eocene epoch, have been charted.
More From encyclopedia.com
Series , se·ries / ˈsi(ə)rēz/ • n. (pl. same) a number of things, events, or people of a similar kind or related nature coming one after another: the explosio… Punctuated Equilibrium , Punctuated equilibrium is a theory about how new species evolve that was first advanced by American paleontologists Niles Eldredge and Stephen Jay Go… Equids , Equidae Equidae (horses; order Perissodactyla, suborder Hippomorpha) A family that includes the modern horses, asses, and zebras (all of which are pl… Chronospecies , chronospecies 1. (evolutionary species) According to one view of evolution (that of phyletic gradualism), a new organism, or one of a series of new o… geometric series , geometric series A numerical and graphical description of the relationship of species in a community according to their importance values. Curves app… Living Fossil , living fossil A member of a living animal or plant species that is almost identical to species known from the fossil record (not the recent fossil re…
About this article
Updated About encyclopedia.com content Print Article
You Might Also Like