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

Geological Survey Professional Paper 58

The Guadalupian Fauna

PLATES — PLATE XXVII.

DELAWARE MOUNTAIN FORMATION, SOUTHERN DELAWARE MOUNTAINS.

	FUSULINA ELONGATA Shumard (p. 62).
FIG. 1.	A silicified specimen so preserved as to show the fluted and interlocking radial walls. Side view, X 4. Delaware Mountain formation, southern Delaware Mountains (station 29S7).
FIG. 2.	A silicified specimen more nearly perfect than the foregoing. Side view, natural size. Delaware Mountain formation, southern Delaware Mountains (station 2957).
	LINGULINA? sp. (p. 69).
FIG. 3.	A thin section supposed to cut longitudinally through the organism, X 10. Delaware Mountain formation, southern Delaware Mountains (station 2964).
	ENDOTHYRA sp. c (p. 68).
FIG. 4.	A thin section supposed to pass through the axis, X 10. Delaware Mountain formation, southern Delaware Mountains (station 2964).
	FUSULINELLA sp. b (p. 66).
FIGS. 5 and 5a.	A silicified specimen.
5.	Side view, X 10.
5a.	View perpendicular to the axis, X 10. Delaware Mountain formation, southern Delaware Mountains (station 2969).
	SPIRORBIS TEXANUS n. sp. (p. 112).
FIG. 6.	Portion of a loosely coiled or irregularly sinuous specimen. Side view, X 4. Delaware Mountain formation, southern Delaware Mountains (station 2969).
	STROMATIDIUM TYPICALE n. Sp. (p. 77).
FIG. 7.	A specimen with several layers connected. Side view, showing the pillar rays and the edges of the walls, X 10. In the middle of the upper portion of the figure a large hexact appears to be in place. Delaware Mountain formation, southern Delaware Mountains (station 2969).
FIGS. 8 and 8a.	A group of amalgamated mural rays.
8.	View of one side, showing a covering of entangled-spicular outgrowths, X 10.
8a.	View of the other side, which is slightly nodose, X 10. Delaware Mountain formation, southern Delaware Mountains (station 2969).
FIG. 9.	Another group of consolidated spicules. Side view, showing nodose surface, X 10. Delaware Mountain formation. southern Delaware Mountains (station 2969).
FIGS. 10 and 10a.	Material provisionally referred to this species.
10.	Loose acicular spicules associated with this species and possibly belonging to the same organ ism X 10. Assembled with other material as freed by etching.
10a.	Another thin section of smaller sized spicules similarly prepared, X 10. Delaware Mountain formation, southern Delaware Mountains (station 2969).GUADALUPIA? sp. var. (p. 86)
FIG. 11.	Fossil of doubtful affinity provisionally referred to this genus. Thin section through a stem somewhat oblique to the axis, X 5. Delaware Mountain formation, southern Delaware Mountains (station 2964).
FIG. 12.	Another specimen similar to the last. Thin section through a stem strongly oblique to the axis, X 5. Delaware Mountain formation, southern Delaware Mountains (station 2964).
	DOMOPORA? OCELLATA n. sp. (p. 122).
FIG. 13.	A specimen referred to this species but not identified with certainty. Longitudinal section, X 20. Delaware Mountain formation, southern Delaware Mountains (station 2957).
FIGS. 14 and 14a.	A specimen referred to this species, possibly the same as the foregoing.
14.	Tangential section, X 20.
14a.	Same, X 35. Delaware Mountain formation, southern Delaware Mountains (station 2957).
	DOMOPORA? VITTATA n. sp. (p. 123).
FIGS. 15 and 15a.	Terminal portion of a branch in which the maculae are somewhat less prominently developed than the type.
15.	Side view, showing the ends of two sets of maculae, X 4.
15a.	Side view, showing the elongated maculae, X 4. Delaware Mountain formation, southern Delaware Mountains (station 2969).
	DOMOPORA? INCRUSTANS n. sp. (p. 124).
FIGS. 16 to 16b.	The type specimen.
16.	Side view, showing the junction of the two ends, X 4.
16a.	Upper side, showing the surface covered with an epitheca, X 4.
16b.	Opposite side to 16, X 4. Delaware Mountain formation, southern Delaware Mountains (station 2969).
	FISTUL1PORA GRANDIS var. GUADALUPENSIS n. var (p. 125).
FIG. 17.	An unusually elongated specimen, showing the form in which this species usually grows. The surface is more or less overlaid with a delicate investment which tends to cover and conceal the zooecial apertures. Side view. Delaware Mountain formation, southern Delaware Mountains (station 2969).
	ARCHAEOCIDARIS sp. b (p. 110).
FIGS. 18 and 18a.	Fragments of radioles possibly belonging to the same specimen.
18.	Distal portion, X 2.
18a.	Proximal portion, X 2. Delaware Mountain formation, southern Delaware Mountains (station 2969).
	COENOCYSTIS RICHARDSONI n. sp. (p. 108).
FIGS. 19 and 19a.	A specimen in which the outer and the inner surfaces were silicified the intervening portion having been removed by etching. The outer layer has largely broken away, showing some of the internal structures.
19.	Side view, X 4.
19a.	View of the upper end, X 4. Delaware Mountain formation, southern Delaware Mountains (station 2969).
FIGS. 20 and 20a.	Basal cup of a large specimen.
20.	View of the upper surface, showing the large channel of the anal pore and the four smaller channels of the auxiliary pores, together with depressions on the apices of the five pentagonal plates, X 4.
20a.	Side view, showing the almost completely consolidated plates, X 4. Delaware Mountain formation, southern Delaware Mountains (station 2969).
FIG. 21.	A small, nearly perfect specimen. View of the anal side, X 4. Delaware Mountain formation, southern Delaware Mountains (station 2969).
FIG. 22.	A small specimen. View of the anal side, showing the obscurely pentahedral shape of the dome and the dimples at the bases of the dihedral angles and the summits of the pentagonal plates. Delaware Mountain formation, southern Delaware Mountains (station 2969).

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

<<< Previous

<<< Contents >>>

Next >>>

pp/58/plate27.htm
Last Updated: 05-Dec-2008