Cat Gap

The cat gap is a period in the fossil record of approximately 25 to 18.5 million years ago in which there are few fossils of cats or cat-like species found in North America. The cause of the "cat gap" is disputed, but may have been caused by changes in the climate (global cooling), changes in the habitat and environmental ecosystem, the increasingly hypercarnivorous trend of the cats (especially the nimravids), volcanic activity, evolutionary changes in dental morphology of the Canidae species present in North America, or possibly even attributed to patterns of periodicity of extinctions (climatic/floral cycles called "van der Hammen cycles")

Read more about Cat GapCat Evolution, Hypercarnivorous Tendency As A Probable Cause of The Cat Gap, Changes in Climate and Habitat, Other Possible Causes of The Cat Gap, Evolution of Caniforms During The Cat Gap

Other articles related to "cat gap":

Evolution of Caniforms During The Cat Gap
... It has been suggested by some that as a result of the cat gap caniforms (dog-like species including canids, bears, weasels, and other related taxons ... Canid diversity did increase during the cat gap period, but this diversity is not indicative that the diversity was due to the cat gap ... Disparity increased during the cat gap even with the extinction of the hypercarnivorous extremes ...

Famous quotes containing the words gap and/or cat:

    the gap of today filling itself
    as emptiness is distributed
    in the idea of what time it is
    when that time is already past
    John Ashbery (b. 1927)

    A sturdy lad from New Hampshire or Vermont who in turn tries all the professions, who teams it, farms it, peddles, keeps a school, preaches, edits a newspaper, goes to Congress, buys a township, and so forth, in successive years, and always like a cat falls on his feet, is worth a hundred of these city dolls. He walks abreast with his days and feels no shame in not “studying a profession,” for he does not postpone his life, but lives already.
    Ralph Waldo Emerson (1803–1882)