discontinuous distribution

discontinuous distribution

a distribution in which populations of related organisms are found in widely separated parts of the world, e.g. lung flukes in Australia, Africa and South America. Such a distribution is thought to indicate the great age of the group, with intermediate populations having become extinct.
References in periodicals archive ?
This geographically discontinuous distribution is similar to that observed in the scorpion genus Hadrurus Thorell 1876 (Scorpiones, Iuridae).
If the analysis turns up a large number of pointer movements or pointer movements with a discontinuous distribution vs.
The reductions have been executed at higher temperatures in order to obtain discontinuous distributions adequate to sintering process conditions.