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Phylogeny and biogeography of metacrangonyctid amphipods in North Africa by Claude Boutin is a Environmental Science article available to read on EtoBox.

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The Metacrangonyctidae are distributed from the Canarian Archipelago to Israel and from the Balearic Islands to the pre-Saharian areas of Algeria, but Morocco seems to be the place where the family has especially split into a number of species now living in different parts of the Country. Data on the phylogenetic relationships of the family, on the geographic distribution of species in Morocco, and on the geological history of the regions inhabited by the different species lead us to consider the origin of these amphipods and their occurrence near or far (600 km) from the present marine shore as the result of a 'Two-step Model of Colonization and Evolution'. The first step (vertical transition of the marine ancestors) may have occurred once during the Mesozoic period, some time before the Turonian period. The second step (horizontal tmsition of littoral interstitial ancestors) may have occurred once each time during the Turonian and the Senonian Cretaceous marine regressions for the different groups of Metacrangonyx species, and during the Lutetian Eocene regression for the species of the genus hngipodacrangonyx. The correlation between each lineage of Metacrangonyctidae and one ma

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Author

Claude Boutin

Publisher

Springer; Springer-Verlag; Springer (Kluwer Academic Publishers); Kluwer Academic Publishers; Springer Science and Business Media LLC (ISSN 1573-5141)

Published

1994

Language

EN

Field

Environmental Science (Physical Sciences)