The Sepiidae have a tropical/temperate distribution. They are
mostly shallow-water animals although they are known from depths
of about 600 m (Lu and Roper, 1991). They have an unusual
biogeographic pattern (seen below, in white) in which they are
absent from the Americas. Young, et al. (1998) suggest that by
the time the family evolved in the Old World, the northern
migration bridge across the Atlantic was closed to these warm
water species. Figure. Chart showing the distribution of the
Sepiidae (white areas). Chart modified from Young et al. (1998).
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