. Bulletins of American paleontology. Texas Mississippian brachiopods: Carter 437 ^t^ ^. Text-figure 53. — Transverse serial sections of Girtyclla aff. G. cedarensis Welier , USNM 154941 from USNM locality 9045, measurements (mm) from ventral beak. Limestone Girtyella aff. G. cedarensis has been found only at USNM localities 9045 (six specimens), 9047 (one specimen), and 9048 (one specimen). Family DIELASMATIDAE Schuchert, 1913 Subfamily DIELASMATINAE Schuchert, 1913 Genus DIELASMA King, 1859 Dielasma sp. Text-fig. 54 Two fragmentary specimens from USNM localities 9045 and 9048, and a sing
. Bulletins of American paleontology. Texas Mississippian brachiopods: Carter 437 ^t^ ^. Text-figure 53. — Transverse serial sections of Girtyclla aff. G. cedarensis Welier , USNM 154941 from USNM locality 9045, measurements (mm) from ventral beak. Limestone Girtyella aff. G. cedarensis has been found only at USNM localities 9045 (six specimens), 9047 (one specimen), and 9048 (one specimen). Family DIELASMATIDAE Schuchert, 1913 Subfamily DIELASMATINAE Schuchert, 1913 Genus DIELASMA King, 1859 Dielasma sp. Text-fig. 54 Two fragmentary specimens from USNM localities 9045 and 9048, and a single brachial valve from localit}^ 9047 appear to be as- signable to the genus Dielasma King, 1859, on the basis of interior details as developed from serial transverse sections made from the specimen from locality 9048. These sections show the hinge plates to be divided reaching the floor of the valve separately posteriori}^ converging and touching anteriorly, but not rising above the floor of the valve as in Hainburgia chappelensis, Although these three specimens are poorly preserved, they appear to represent a species that is relatively tumid or inflated posteriorly. Illustrated speci^nen.—USNM No. 154942. Family HETERELASMINIDAE Likharev, 1956 Genus BEECHERIA Hall and Clarke, 1893. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Paleontological Research Institution (Ithaca, N. Y. ); Columbia University. Ithaca, N. Y. , Paleontological Research Institution [etc. ]
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