MULTIZONOPOKA. 
221 
Miiltizonopwa ramosa, cle Loriol, 1868. Mon, Yalang. Arzier : Pal. Suisse^ 
ser. 4, pt. ii. p. 64. 
,, ,, Canu, 1902. Bry. foss. i., Coll. Camp.; Bull. Soc. 
geol. France, ser. 4, vol. ii. p. 11. 
Heteropora {Multizonopord) ramosa, Keeping, 1883. Foss. Keoc. Upware, p. 141. 
Pustulopora biformis, B-omer, 1839. Yerst. nordd. OoL, Kachtrng, p. 12, 
pi. xvii. lig. 20. 
,, ,, Komer, 1840. Yerst. nordd. Kr. p. 22. 
Zonopora ,, ? Gregory, 1889. B.M. Cat. Cret. Bry. vol. i. p. 428. 
^ Spiroclausa neocomiensis , de Loriol, 1863. Invert. Keoc. moy. Mt. Saleve, 
pt. ii. p. 137, pi. xvii. fig, 7. 
Ceriopora pohjmorpha, Etheridge & Kewton, 1878. Cat. Cret. Foss. Mus. Bract. 
Geol. pp, 6-7. 
Heteropora {Hulticrescis) arbuscula, Keeping, 1883. Foss. Keoc. Upware, p. 143, 
pi. vii. figs. 17«, b. 
Malticavea neocomensis, de Loriol, 1863, Invert. Neoc. moy. Mt. Saleve, pt. ii. 
p. 142, pi. xviii. figs. 1, 2. 
Ceriopora subnodosa, Homer, 1839. Yerst. nordd. Ool. : Kachtrag, p. 11, 
pi. xvii. fig. 19. 
Diagnosis. 
Zoarium of branches from 3 to 10 mm. in diameter, which 
dichotomize in the same plane. The branches may be 
cylindrical or elliptical in cross-section. Surface often raised 
in round knobs or blunt elevations. 
Apertures crowded and circular, distributed in irregular trans- 
verse bands, which may be confluent or separated by irregular 
transverse bands of mesopores. The zonal structure may be 
obscure in old stems. 
Dimensions. 
Koch & 
Dunker’s type. 
De Loriol. 
B.M. D. 7087. 
mm. 
mm. 
mm. 
Length of branches 
30 
(longest 
fragment) 
60 
25 
Diameter of branches 
3 to 5 
4 to 9 
from 9 X 7 to 
16 X 12 at the 
base 
Diameter of axial bundle . . . 
not quite half 
the diameter of 
the stem 
Diameter of apertures 
about -2 
about "1 
•2 
Diameter of mesopores 
about -06 
about *1 
•1 
