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Geological Survey Professional Paper 58
The Guadalupian Fauna |
PLATES — PLATE VIII.
CAPITAN FORMATION, GUADALUPE MOUNTAINS.
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ACANTHOCLADIA GUADALUPENSIS n. sp. (p. 149). | |
| FIG. 1. |
A very robust specimen referred to this species. The poriferous side is concealed, though a row of spines down the sides of the pinnules can be seen. Nonporiferous side. Capitan formation, Capitan Peak (station 2926). |
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ACANTHOCLADIA sp. (p. 152). | |
| FIGS. 2 and 2a. |
A small specimen belonging to an undetermined species, but one apparently different from A. guadalupensis. |
| 2. |
Poriferous side, natural size in outline. |
| 2a. |
Same, X 4. Capitan formation, Capitan Peak (station 2926). |
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GONIOCLADIA AMERICANA n. sp. (p. 154). | |
| FIGS. 3 to 3c. |
A large fragment of a frond, exposing the nonporiferous side. |
| 3. |
Zoarium, natural size. |
| 3a. |
Section across the frond where several branches become confluent, X 3. |
| 3b. |
Tangential section about halfway through the frond, X 3. |
| 3c. |
Portion of the nonporiferous side enlarged to show the shape of the highly angular branches, X 3. Capitan formation, Capitan Peak (station 2926). |
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FENESTELLA CAPITANENSIS n. sp. (p. 134). | |
| FIGS. 4 and 4a. |
The type specimen, a frond with the poriferous face embedded in rock. |
| 4. |
Side view of frond, X 2. |
| 4a. |
Portion of the same, X 8. Though more or less damaged by exfoliation the small nodes developed at the junction of the branches and dissepiments can here and there be seen. Capitan formation, Capitan Peak (station 2926). |
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FISTULIPORA GUADALUPAE n. sp. (p. 126). | |
| FIGS. 5 and 5a. |
The type specimen. |
| 5. |
Longitudinal section, X 20. |
| 5a. |
Transverse section, X 20. Capitan formation, Capitan Peak (station 2966). |
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STENOPORA POLYSPINOSA var. RICHARDSONI n. var. (p. 129). | |
| FIGS. 6 to 6b. |
The type specimen. |
| 6. |
Longitudinal section, X 20. |
| 6a. |
Transverse section, X 35. |
| 6b. |
Transverse section, X 20. Capitan formation, Capitan Peak (station 2966). |
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DOMOPORA? OCELLATA n. sp. (p. 122). | |
| FIGS. 7 and 7a. |
Terminal portion of a branch. There are two maculae opposite each other, but not a terminal one. |
| 7. |
Side view showing one of the macalae, X 4. |
| 7a. |
Side view of the adjacent quadrant, showing sides of two maculae, X 4. Capitan formation, hill southwest of Guadalupe Point (station 2906). |
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PATELLA CAPITANENSIS n. sp. (p. 465). | |
| FIGS. 8 to 8b. |
A small specimen serving as the type. |
| 8. |
Seen from above, X 3. |
| 8a. |
Side view, X 3. |
| 8b. |
End view, X 3. Capitan formation, Capitan Peak (station 2966). |
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PLEUROTOMARIA RICHARDSONI n. sp. (p. 467). | |
| FIGS. 9 and 9a. |
A well-preserved specimen selected as the type. |
| 9. |
Seen from above, X 3. |
| 9a. |
Side view, X 3. Capitan formation, Capitan Peak (station 2966). |
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PLEUROTOMARIA NEGLECTA n. sp. (p. 472). | |
| FIGS. 10 to 10c. |
Specimen preserved as a partial mold of the interior. |
| 10. |
View of the under side, X 3. |
| 10a. |
Side view, X 3, showing the aperture. |
| 10b. |
Side view, X 3. |
| 10c. |
Same, natural size in outline. Capitan formation, Capitan Peak (station 2926). |
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PLEUROTOMARIA PUTILLA n. sp. (p. 468). | |
| FIGS. 11 to 11b. |
The typical specimen. |
| 11. |
View of the lower side, X 4. |
| 11a. |
Side view, X 4. |
| 11b. |
Same, natural size in outline. Capitan formation, Capitan Peak (station 2926). |
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PLEUROTOMARIA MICA n. sp. (p. 467). | |
| FIGS. 12 to 12c. |
The typical specimen. |
| 12. |
View of the upper side, X 4. |
| 12a. |
Side view, X 4. |
| 12b. |
Same, natural size in outline. |
| 12c. |
View of the lower side, X 4. Capitan formation, Capitan Peak (station 2926). |
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PLEUROTOMARIA DISCOIDEA n. sp. (p. 470). | |
| FIGS. 13 to 13d. |
A somewhat imperfect specimen on which the species is founded. |
| 13. |
Side view, showing the aperture, X 2. |
| 13a. |
Same, natural size in outline. |
| 13b. |
View of the lower side, X 2. |
| FIG. 13c. |
View of the upper side, X 2. |
| 13d. |
Same, natural size in outline. Capitan formation, Capitan Peak (station 2926). |
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EUCONOSPIRA OBSOLETA n. sp. (p. 477). | |
| FIGS. 14 to 14b. |
A rather well-preserved fragment. |
| 14. |
Seen from above. |
| 14a. |
Seen from below. |
| 14b. |
Side view. Capitan formation, Capitan Peak (station 2926). |
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| Plate VIII. (click on image for a PDF version) |
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Last Updated: 05-Dec-2008