. Bulletins of American paleontology. . ( Text-figure 6.—Transverse serial sections of Coledium vadosulcatum, n. sp. X5, USNM 154686 from USNM locality 9047, measurements (mm) from ventral beak. nearly sessile posteriorly, never rising much off the floor of the valve. Brachial valve evenly convex in both lateral and anterior pro- file, much more inflated than pedicle valve; cardinal extremities slightly compressed; beak small, obscured by pedicle valve. Brachial valve interior with moderately curved camarophorium on a high median septum; camarophorial trough narrow, shallow,
. Bulletins of American paleontology. . ( Text-figure 6.—Transverse serial sections of Coledium vadosulcatum, n. sp. X5, USNM 154686 from USNM locality 9047, measurements (mm) from ventral beak. nearly sessile posteriorly, never rising much off the floor of the valve. Brachial valve evenly convex in both lateral and anterior pro- file, much more inflated than pedicle valve; cardinal extremities slightly compressed; beak small, obscured by pedicle valve. Brachial valve interior with moderately curved camarophorium on a high median septum; camarophorial trough narrow, shallow, not touching the hinge plate; intercamarophorial plate short, sup- porting the hinge plate forward from the beak for only part of its length; hinge plate clearly defined (in sections) by stout crural bases, thickened posteriorly to form deeply striated cardinal pro- cess; crura short, slightly diverging and flattened posteriorly, be- coming rodlike anteriorly. Table 18.—Measurements in millimeters of Coledium 'vadosulcatum, n. sp., from USNM locality 9047. USNM No. Length Width Thickness 154681 154682 154683 154684 154685 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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