The figure below shows the distribution of samples containing the inarticulate brachiopod Philhedra.

[ Philhedra distribution ]

Philhedra is an uncommon inarticulate brachiopod in the MRV strata.

Philhedra Koken, 1889 [*P. baltica ] [=Philhedra Bekker, 1921; Propatella Grubbs, 1939]
Similar to Acanthocrania but fine continuous or discontinuous costellate ornament; pedicle valve thin, commonly not calcified.
?M. Cam., L. Ord. - Carb., North America, Europe, Asia
Family Craniidae Menke, 1828
Shell calcareous, punctate, punctae in brachial valve branching arborescently toward distal end; brachial valve usually conical, pedicle valve subconical or convex when free, conforming to shape of surface of attachment when fixed. Principal muscles consist of two pairs of adductors traversing shell dorsoventrally and two pairs of oblique muscles. Vascula lateralia of both valves pinnate, vascula media seemingly absent. Recent species with anus posteriorly placed on mid-line of shell, no marginal setae.
?M. Cam., L. Ord. - Recent
Order Acrotretida Kuhn, 1949

Treatise on Invertebrate Paleontology, H291.