By John C. Briggs
This booklet considerably expands the assurance of this topic given via its predecessor Biogeography and Plate Tectonics (1987). international Biogeography lines international adjustments in geography and biology from the Precambrian to the new (with all over the world insurance in chronological order); examines the evolutionary results of the foremost extinctions, and discusses modern biogeographic areas in the context in their old origins. it's now obvious that the biotas of some of the biogeographical areas have had, and nonetheless hold, a dynamic courting with each other; even more than was once formerly proposal. this can be proven to be precise for all 3 of the earth's basic habitats; marine, terrestrial and freshwater (as is obviously verified during this volume).
The booklet is wonderfully illustrated with 122 textual content figures, an in depth bibliography, index, including a collection of biogeographic maps illustrating continental and terrain outlines from the mid-Cambrian to the hot. collage scholars (both complicated undergraduate and graduate point) will locate it an outstanding textual content publication. For execs in Biogeography this can be a handy reference paintings.
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Additional resources for Global Biogeography
Silurian chitinozoans were predominately cosmopolitan (Laufeld, 1979). Our knowledge of the colonization of the land has been reviewed by Selden and Edwards (1989). Although terrestrial forms of algae and other micro-organisms may have occurred in the Proterozoic, there are no fossils to prove it. The earliest spores, thought to have been produced by vascular plants, came from sediments near the end of the Ordovician. Fragments of cuticle, which might have come from vascular plants have also been found in Ordovician deposits.
6. 7. The hypothesis of a Proterozoic supercontinent, which may have existed from about 950 to 700 Ma ago, has gained wide acceptance despite very little evidence. " The supposition is that, over a period of about 500 Ma, the continents will assemble together, fragment, disperse widely, and then reassemble. The Proterozoic supercontinent (Rodinia), if indeed one existed, supposedly began to fragment about 750 Ma ago. The subsequent dispersal of the continental blocks may, according to some authorities, have been aided by an expanding earth.
Elsewhere, trilobite genera appeared to be broadly distributed. The higher malacostracan crustaceans (hoplocarids, eumalacostracids) apparently originated during the early Devonian in the tropical waters of Laurentia and Baltica (Schram, 1977). The fossil record suggests that these groups continued to be restricted to tropical marine waters during the late Devonian and Carboniferous. Their late-Devonian distribution has been depicted by Schram (Fig. 16). By the Permian, the malacostracans had spread into temperate marine and freshwater habitats.