USGS: Geological Survey Professional Paper 58: The Guadalupian Fauna (Plates)

Geological Survey Professional Paper 58

The Guadalupian Fauna

PLATES — PLATE XIX.

"DARK LIMESTONE," GUADALUPE MOUNTAINS

	STENOPORA GRANULOSA n. sp. (p. 128).
FIGS. 1 to 1c.	The typical specimen.
1.	Tangential section, showing granular bands in walls, X 20.
1a.	Same, more highly magnified, X 35.
1b.	Tangential section, showing granular acanthopores, X 20.
1c.	Vertical section, showing the irregular moniliform character of the walls and the absence of tabulae, X 20. "Dark limestone," Pine Spring (station 2930).
	LEIOCLEMA SHUMARDI n. sp. (p. 131).
FIGS. 2 to 2d.	The typical specimen.
2.	Tangential section, showing zooecia, mesopores, and acanthopores, X 35.
2a.	Same, X 20.
2b.	Vertical section through spreading base, showing tabulated mesopores, X 20.
2c.	Vertical section of a branch, showing the thickened tissue on the walls in the mature region which has obscured the tabulated mesopores, X 20.
2d.	Vertical section of walls, showing tabulated acanthopores, X 50. "Dark limestone," Pine Spring (station 2930).
	FENESTELLA HILLI n. sp. (p. 134).
FIGS. 3 and 3a.	A silicified specimen.
3.	Nonporiferous side, X 8.
3a.	Poriferous side, X 8. "Dark limestone," Guadalupe Point (station 3762e).
	FENESTELLA SPINULOSA Condra? (p. 137).
FIGS. 4 and 4a.	A silicified specimen resembling this species.
4.	Nonporiferous side, X 8.
4a.	Poriferous side, X 8. "Dark limestone," Pine Spring (station 2930).
	FENESTELLA GUADALUPENSIS n. sp. (p. 135).
FIG. 5.	A silicified specimen.
FIG. 5.	Nonporiferous side, X 8. "Dark limestone," Pine Spring (station 2930).
	POLYPORA MEXICANA Prout? (p. 143).
FIGS. 6 to 6b.	A silicified specimen referred to this species.
6.	Nonporiferous side, natural size.
6a.	Poriferotis side, X 5.
6b.	Nonporiferous side, X 5. "Dark limestone," Guadalupe Point (station 3762e).

Plate XIX. (click on image for a PDF version)

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Last Updated: 05-Dec-2008