Table 1.
Dimerelloid brachiopod genera and (inferred) chemosymbiotic bivalve genera in ancient hydrocarbon-seep deposits.
New brachiopod and bivalve genera established since Mike Sandy’s review of dimerelloid brachiopods as seep-inhabitants in 1995 [23] are marked by an asterisk (*); see section ‘Diversity pattern’ for reasoning.
Table 2.
Seep-bearing rock units or equivalents, sorted into the same geologic time bins as the genera in Table 1; Fm = Formation.
Fig 1.
Phanerozoic generic diversity of chemosymbiotic bivalves and dimerelloid brachiopods at hydrocarbon seeps, and the number of seep-bearing rock units.
Note break in scale and that the Permian was omitted because no confirmed seep deposits have been reported from this period to date. E. = Early, L. = Late.