"Turner (1966) reports that a collection of
Pantanodon podoxys has been made in Africa
from stagnant pools. The common cyprinodontiforms
in the vicinity were two
species of the annual Nothobranchius which
were present in similar pools. No permanent
body of fresh water was found that could be
inferred to have originally formed the pools.
Such circumstances suggest that Pantanodon
may be an annual, and therefore that
annualism among cyprinodontiforms is not
restricted to the aplocheiloids, but is perhaps
a general characteristic of those cyprinodontiforms
which inhabit ephemeral waters." (Parenti 1981)