64 
OSCULIPORID^. 
3. Osculipora filix (von Hagenow), 1851. 
Synonymy. 
Truncatula Jilix , von Hagenow, 1851. Bry. maastr. Kr. p. 35, pi. iii. fig. 4. 
,, ,, d’Orbigny, 1854. Bry. Cret. p. 1053. 
,, ,, Ubaghs, 1879. Descr. Geol. Pal. Limb. p. 226. 
,, ,, Vine, 1885. 5th Eeport : Rep. Brit. Assoc. 1884, p. 141. 
Osculipora ,, Hamm, 1881. Bry. mastr. Ob. -Sen. i., Cycl. p. 33. 
Diagnosis. 
Zoarium simple ; it consists of a stem rising from a laterally 
attached, expanded, adnate, sole-like base, which is on the 
obverse face of the colony. The branch is pinnate ; the 
pinnules are opposite or subalternate, and are about equal in 
length to the width of the stem. A strong, smooth, cylindrical 
axis occurs along the middle of the obverse face. 
Heverse face both of stem and pinnules is smooth. 
Apertures occurring on the obverse face of the pinnules, and on 
the obverse face of the central stem, beside the midrib. 
Dimensions. 
Von 
-Hagenow’s 
type. 
B.:\r. D. 3374. 
Fig. 24, p. 65. 
1 Fig. 25, p. 65. 
Length of zoarium ... 
mm. 
5*5 
mm. 
mm . 
Diameter of branch across central 
axis 
1-1-2 
_ 
From tip to tip of opposite pinnules 
2-5-4 
— 
— 
Diameter of aperture 
-1 
— 
-1--12 
Diameter of base ... 
1-4 X 3-2 
— 
— 
Distance between lateral fasciculi . . . 
1 
i 
Diameter of gonoecium 
— 
1-1 X 1-2 “j 
1x1-4 
Distribution. 
Senonian — Maastrichtian : Maastricht. 
Figures. 
Fig. 24, p. 65. The end of a branch with an immersed gonoecium 
seen from the side ; X 1 0 dia. Maastrichter Kalk : Maastricht. 
Van Breda Coll. D. 3374. 
Fig. 25, p. 65. The end of a branch of another zoarium with 
gonoecium; X 10 dia. Maastrichter Kalk: Maastricht. Van 
Breda Coll. D. 3374. 
