8 
Early Eocene. Unfortunately, the discovery of C. solomoni does 
not favour one or other of the two models for the origin of 
cinctiporids which were proposed by Boardman et al. (1992; note 
that a slight modification of model 1 has subsequently been pre- 
sented as the preferred hypothesis by Boardman 1998). 
Genus ATTINOPORA Boardman, McKinney & Taylor, 1992 
TYPE SPECIES. Pustulopora zealandica Mantell, 1850, by original 
designation; Recent, New Zealand. 
?Attinopora sp. Fig. 5 
MATERIAL. NHM BZ 4771-4772. 
DESCRIPTION. Colony erect, with narrow, cylindrical branches, 
0.7—0.9 mm in diameter, strongly curved in one specimen; bifurca- 
tions assumed to exist but not observed. Autozooids large, 
fixed-walled, frontal walls flat and minutely pseudoporous, about 
0.9 mm long; zooidal boundaries not prominent; autozooids dis- 
posed in annular to irregularly spiral patterns with about 7 zooids 
around the branch circumference; apertures subcircular or slightly 
elongate longitudinally, 0.16—0.20 mm in diameter. 
REMARKS. With only two small specimens available, it is impossi- 
ble to be certain of the generic identity of this species. There are 
several genera of vinculariiform tubuliporines to which it may 
potentially belong, e.g., Diaperoecia, Mecynoecia, Entalophoroecia. 
However, the large size of the zooids and their arrangement on the 
colony surface, together with the biogeographical provenance, prompt 
a tentative identification as the cinctiporid genus Attinopora. Like 
other cinctiporids, gonozooids have never been observed in 
Attinopora, but a much larger suite of specimens would be needed 
for their absence to be reasonably established in the Red Bluff Tuff 
species. 
D.P. GORDON AND P.D. TAYLOR 
Family ENTALOPHORIDAE Auctt. 
‘Entalophorid’ sp. Fig. 6 
MATERIAL. NHM BZ 4773. 
DESCRIPTION. Colony erect, with bifurcating cylindrical 
branches, slender, about 0.8 mm in diameter. Autozooids large, 
fixed-walled, 7-8 around the branch circumference; frontal walls 
slightly convex, slender, approximately 1.6—1.8 mm long by 0.4 
mm wide, a narrow groove marking the zooidal boundary; aper- 
tures longitudinally elongate, 0.3 mm long by 0.2 mm wide. 
Gonozooids not observed. 
REMARKS. The absence of a gonozooid in the solitary specimen 
belonging to this species precludes generic identification. In the 
older literature such vinculariiform tubuliporines are generally as- 
signed toEntalophora Lamouroux, 1821 (type species E. cellarioides 
Lamouroux, 1821 from the Middle Jurassic). However, this genus is 
nowadays applied in a more restricted sense for species with simple, 
subtriangular gonozooids and, moreover, branches having a narrow 
axial canal (see Walter 1970). An axial canal is not present in the Red 
Bluff Tuff material. 
Family INCERTAE SEDIS 
Genus ‘BERENICEA’ Lamouroux, 1821 
TYPE SPECIES. Berenicea diluviana Lamouroux, 1821, by subse- 
quent designation; Jurassic (Bathonian), Calvados, France. 
REMARKS. Following Taylor and Sequeiros (1982), the generic 
designation ‘Berenicea is used informally for species of bereniciform 
tubuliporines in which the gonozooecium is unknown (Berenicea 
Lamouroux, 1821 is a nomen dubium). 
Figs 12-13 
‘Berenicea’ sp., NHM BZ 4774. 12, ill-preserved, multilayered colony, x 37. 13, lobate outgrowth, x 70. 
