Exploration of the Red River of Louisiana, in the year 1852 / by Randolph B. Marcy ; assisted by George B. McClellan. Page: 197 of 368
xv, 286 p., [65] p. of plates (1 fold.) : ill., maps ; 24 cm.View a full description of this book.
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APPENDIX E.-PALtEONTOLOGY.
181
The only specimen of this species collected by the expedition is rather
too imperfect to permit us to make a satisfactory description. It was
found in the cretaceous strata at Camp No. 4, Cross-Timbers, Texas.
CARDIUM MULTISTRIATUM, Shumard.
PALEONTOLOGY, PI. 4, fig. 2.
Shell sub-rotund, inflated, length and breadth nearly equal, truncated
posteriorly, basal and anterior margins rounded; surface of posterior
sub-margin with from fourteen to fifteen regular radiating strime; remainder
of surface marked with fine, equal, rounded, close, concentric strive.
Beaks rather prominent.
This is a neat, pretty species; and it is to be regretted that the specimens
collected were not in a better state of preservation. It was found
at encampment No. 4, Cross-Timbers, Texas, where it is rather uncommon.
PANOP.EA TEXANA, Shumard.
PALAONTOLOGY, PI. 6, fig. L
Shell oval, elongate, inflated anteriorly, compressed behind, beaks
moderately prominent, basal edge rounded, buccal extremity wide,
rounded; surface marked with irregular concentric slightly elevated
ribs. Length about 2 5-10 inches, breadth 1 4-10 inch, thickness
1-10 inch.
The only specimen of this species brought home by the expedition is
an imperfect cast.
Locality, encampment No. 4, Cross-Timbers, Texas.
TEREBRATULA CHOOTAWSNSIS, Shumard.
PALAEONTOLOGY, P1. 2, fig. a, b.
Shell sub-globose, inflated, sub-pentagonal, front slightly truncated
surface minutely punctate, the puncti only visible when examined
through a strong lens; dorsal valve most inflated; beak obtuse, recurved,
pierced by an oval aperture; area distinct, forming a well defined obtuse
angle; ventral valve moderately convex, sub-orbicular. Length 9
lines, width 8 lines, thickness 6 lines.
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Marcy, Randolph Barnes. Exploration of the Red River of Louisiana, in the year 1852 / by Randolph B. Marcy ; assisted by George B. McClellan., book, 1854; Washington, DC. (https://texashistory.unt.edu/ark:/67531/metapth6105/m1/197/: accessed April 25, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting UNT Libraries Special Collections.