NJGS - Bulletin 61-I. The Cretaceous Fossils of NJ - State of New ...

CLASS ANTHOZOA
Family Rhizangiidae
Astrangia (Coenangia) cretacea (Bolsche) 1870
Plate 3, Figure 3
Astrea cretacea, BGlsche, 1870, Zeitschr. deutsch. geol. Oes. Vol. 22, p.
216.
Siderastrea cretaeea, Wells, 1933, Bull. Amer. Paleont. vol. 18, p. 226,
pl. 25, fig. 13 ; pl. 28, fig. 26.
Description.-Small, hemispherical, encrusting colonies of cerioid
corallites. Calices polygonal, 3 - 6 mm. in diameter, directly united by
thin walls. Septa in three complete cycles (24), those of the first two
cycles extending to the columella; third cycle uniting to the second.
Septa thin, laterally with scattered, acute granulations, and irregularly
dentate marginally. Columella spongy.
Range in New Jersey-
MERCHANTVILLE: Maple Shade (ANSP 19644)
WOODBURY: Haddonfield (ANSP)
MARSHALLTOWN (plastic clay) : Woodbu'ry, Haddonfield
(Bolsche) .
Range outside New Jersey-
Texas (Navarro formation) (Wells)
Family Micrabaciidae
Micrabacia cribraria Stephenson 1916
Plate 3, Figures 1,2
Micrabacia erz%raria,.Stephenson, 1916, U. S. Oeol. Surv. Prof. Paper
98-J, p. 117, pl. 20, figs. 1-3.
Micrabacia americana, Weller, 1907, p. 271, pl. 5, figs. 14-17 (nm M.
amerieana Meek 1864).
? Micrabacia cribraria, Wade, 1926, p. 27, pl. 1, figs. 9-10.
Nicrabacia cr%%raria, Wells, 1933, Bull. Amer. Paleont., vol. 18, p. 244.
Description.-Corallum solitary, cupoloid, free, with flat or slightly
concave base ; diameter of base about 7 mm. ; height 2-2.25 mm. ; ratio
of height to diameter about 30 :loo. Costae relatively narrow, slightly
wider or slightly narrower than interspaces, with small, transversely
acute granulations at each synapticular junction. Centrally costae
and synapticulae form a meshwork. Costae in five complete cycles (96),
unequal in length, those of the last or fifth cycle having a length-basal
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NEW JERSEY GEOLOGICAL SURVEY