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Geological Survey Professional Paper 58
The Guadalupian Fauna |
PLATES — PLATE IX.
CAPITAN FORMATION, GUADALUPE MOUNTAINS.
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CAMPTONECTES? ASPERATUS n. sp. (p. 434). | |
| FIGS. 1 to 1b. |
A right valve. |
| 1. |
Side view, X 5. |
| 1a. |
Same, natural size in outline. |
| 1b. |
Same, X 2, for comparison with figs. 3 and 3a. Capitan formation, Capitan Peak (station 2926). |
| FIG. 2. |
An imperfect right valve with well-preserved surface. |
|
Side view, X 5. Capitan formation; Capitan Peak (station 2926). | |
|
CAMPTONECTES? PAPILLATUS n. sp. (p. 433). | |
| FIGS. 3 and 3a. |
A left valve. |
| 3. |
Side view, X 2. |
| 3a. |
Same, natural size in outline. Capitan formation, Capitan Peak (station 2926). |
|
CAMPTONECTES? SCULPTILIS n. sp. (p. 434). | |
| FIG. 4. |
An imperfect right valve having well-preserved surface ornamentation. Side view, X 2. Capitan formation, Capitan Peak (station 2926). |
| FIGS. 5 and 5a. |
A young left valve partially exfoliated, supposed to belong to the same species. |
| 5. |
Side view, X 2. |
| 5a. |
Same, natural size in outline. Capitan formation, Capitan Peak (station 2926). |
|
CAMPTONECTES? sp. (pp. 433-434). | |
| FIGS. 6 and 6a. |
An internal mold of a left valve belonging probably either to C.? asperatus or C.? papillatus. |
| 6. |
Side view, X 2. |
| 6a. |
Same, natural size in outline. Capitan formation, Capitan Peak (station 2926). |
| FIGS. 7 and 7a. |
An internal mold of a right valve belonging probably either to C.? asperatus or C.? papillatus. |
| 7. |
Side view, X 2. |
| 7a. |
Same, natural size in outline. Capitan formation, Capitan Peak (station 2926). |
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EUCHONDRIA? sp. (p. 441). | |
| FIGS. 8 and 8a. |
Probably a young specimen and of doubtful affinities. |
| 8. |
Side view, X 4. |
| 8a. |
Same, natural size in outline. Capitan formation, Capitan Peak (station 2926). |
|
AVICULIPECTEN INFELIX n. sp. (p. 438). | |
| FIGS. 9 and 9a. |
A small, left? valve. |
| 9. |
Side view, X 4. |
| 9a. |
Same, natural size in outline. Capitan formation, Capitan Peak (station 2926). |
| FIG. 10. |
A larger left? valve. Side view, natural size. Capitan formation, Capitan Peak (station 2926). |
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AVICULIPECTEN LAQUEATUS n. sp. (p. 439). | |
| FIG. 11. |
A left valve. Side view, natural size. Capitan formation, Capitan Peak (station 2926). |
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AVICULIPECTEN SUBLAQUEATUS n. sp. (p. 440). | |
| FIG. 12. |
Imperfect left valve preserved as an internal mold. Side view. Capitan formation, hill southwest of Guadalupe Point (station 2906). |
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PERNIPECTEN? OBLIQUUS n. sp. (p. 441). | |
| FIGS. 13 and 13a. |
A left? valve, larger than the original of fig. 14 and less complete. |
| 13. |
Side view, X 2. |
| 13a. |
Same, natural size in outline. Capitan formation, Capitan Peak (station 2926). |
| FIGS. 14 and 14a. |
A small left? valve in which the ears are defective. |
| 14. |
Side view, X 2. |
| 14a. |
Same, natural size in outline. Capitan formation, Capitan Peak (station 2926). |
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PLAGIOSTOMA DELTOIDEUM n. sp. (p. 442). | |
| FIGS. 15 and 15a. |
A right valve. |
| 15. |
Side view, X 3. |
| 15a. |
Same, natural size in outline. Capitan formation, Capitan Peak (station 2926). |
| FIGS. 16 and 16a. |
A left valve. |
| 16. |
Side view, X 3. |
| 16a. |
Same, natural size in outline. Capitan formation, Capitan Peak (station 2926). |
|
LIMATULINA STRIATICOSTATA n. sp. (p. 443). | |
| FIGS. 17 and 17a. |
A left valve. |
| 17. |
Side view, X 3. |
| 17a. |
Same, natural size in outline. Capitan formation, Capitan Peak (station 2926). |
| FIGS. 18 and 18a. |
A broken right valve showing the characters of this species. |
| 18. |
Side view, X 3. |
| 18a. |
Same, natural size in outline. Capitan formation, Capitan Peak (station 2926). |
| FIG. 19. |
Fragment of another left valve which has the surface well preserved The sculpture is some what finer than on the foregoing and the species may possibly be different. Side view, X 3. Capitan formation, Capitan Peak (station 2926). |
|
PTERIA GUADALUPENSIS n. sp. (p. 426). | |
| FIGS. 20 and 20a. |
A left valve. |
| 20. |
Side view, X 2. |
| 20a. |
Same, natural size in outline. Capitan formation, Capitan Peak (station 2926). |
|
MYOCONCHA COSTULATA n. sp. (p. 444). | |
| FIGS. 21 to 21b. |
A left valve. |
| 21. |
Side view, X 3. |
| 21a. |
Anterior view with the specimen somewhat tilted backward, X 3. |
| 21b. |
Side view, natural size in outline. Capitan formation. Capitan Peak (station 2926). |
|
EDMONDIA? BELLULA n. sp. (p. 420). | |
| FIGS. 22 to 22b. |
A left valve. |
| 22. |
Side view, X 3. |
| 22a. |
Anterior view in outline, X 3. |
| 22b. |
Side view, natural size in outline. Capitan formation, Capitan Peak (station 2926). |
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CYPRICARDINIA? CONTRACTA n. sp. (p. 446). | |
| FIGS. 23 and 23a. |
A right valve somewhat broken about the beak. Like most of the pelecypods from this horizon the preservation is that of an internal mold which yet retains some of the external characters. |
| 23. |
Side view, X 4. |
| 23a. |
Same, natural size in outline. Capitan formation, Capitan Peak (station 2926). |
|
SCHIZODUS SECURUS Shumard? (p. 431.) | |
| FIG. 24. |
An imperfect right valve referred to Shumard's species. Side view, natural size. Capitan formation, Capitan Peak (station 2926). |
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PARALLELODON POLITUS n. sp. (p. 424). | |
| FIGS. 25. |
A fragmentary right valve having the shell in part preserved. Side view, natural size. Capitan formation, Capitan Peak (station 2926). |
|
FOORDOCERAS SHUMARDIANUM n. sp. (p. 497). | |
| FIGS. 26 and 26a. |
A fragment of nearly complete size. |
| 26. |
Side view. |
| 26a. |
Transverse section through two whorls. Capitan formation, Capitan Peak (station 2926). |
| FIGS. 27 and 27a. |
A small and somewhat imperfect specimen. |
| 27. |
Side view. |
| 27a. |
View of the ventral surface. Capitan formation, Capitan Peak (station 2926). |
 |
| Plate IX. (click on image for a PDF version) |
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Last Updated: 05-Dec-2008