Exploration of the Red River of Louisiana, in the year 1852 / by Randolph B. Marcy ; assisted by George B. McClellan. Page: 198 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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182
APPENDIX E.--PAL2EONTOLOGY.
It resembles Terebratula wacoensis, (F. Roemer, Kreidebild. Texas,
81, taf. vi, fig. 2, a-c,) but differs in the character of the surface, which
in T. Choctawensis is thickly studded over with minute puncta. It is
also a smaller species; the area is not so wide comparatively, and the
front is not so broadly truncate.
This beautiful Terebratula was obtained from the cretaceous deposites
near Fort Washita, where it is quite rare, a single specimen only having
been found.
GLOBICONCIA (TYLOSTOMA) TUJMIDA, Shumard.
PALAEONTOLOGY, P1. 5, fig. 3.
Shell ovate-globose, spire pyramidal, volutions about six, whorls moderately
convex; width of body whorl equal to about one half the length
of the shell. Length 1 7-10 inch, width 1 3-10 inch.
All the specimens we have seen are badly preserved internal casts.
Occurs at Cross-Timbers, Texas, in cretaceous limestone.
GLOBICONCHA (?) ELEYATA, Shumard.
PALAEONTOLOGY, P1. 4, fig. 4.
Shell ovate, spire produced, whorls six regularly convex, body whorl
shorter than spire. Length 1 5 10 inch, breadth 1 inch.
This is likewise an internal cast. It occurs with the preceding
species.
EuLMA (?) SUBFUSIFORMIS, Shumard.
PALIEONTOLOGY, P1. 4, fig. 3.
Shell subfusifbrm, elongate smooth, spire produced, regularly conical;
whorls about six, broad, very slightly convex; suture rather shallow,
linear, aperture simple, sub-ovate; body whorl obtusely angulated.
Length 2 8-10 inches, width 1 1-10 inch.
The collection contains only a single specimen of the cast of this
species, and that badly weather-worn. It was found at Camp No. 4,
Cross-Timbers, Texas.
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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/m1/198/: accessed April 26, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting UNT Libraries Special Collections.