. Bulletin of the British Museum (Natural History). 116 PITT AND TAYLOR. Figs 112-113 Heteropora clavata, sensu Gregory (?«o« Kade). Fig. 112, BM(NH) D41378, overgrowth, x 30. Fig. 113, BM(NH) D55209, autozooecia and kenozooecia, x 95. described as Reptomultisparsa sowerbyi (Lonsdale) by Gregory (1899). However, the zooecial dimensions of this Chalk bryozoan are smaller than in the Faringdon specimen. Lonsdale's {in Dixon 1850) type of Diastopora sowerbyi is unfortunately missing. The Faringdon specimen also resembles a colony figured by Hillmer (1971) from the Hauterivian of Germany
. Bulletin of the British Museum (Natural History). 116 PITT AND TAYLOR. Figs 112-113 Heteropora clavata, sensu Gregory (?«o« Kade). Fig. 112, BM(NH) D41378, overgrowth, x 30. Fig. 113, BM(NH) D55209, autozooecia and kenozooecia, x 95. described as Reptomultisparsa sowerbyi (Lonsdale) by Gregory (1899). However, the zooecial dimensions of this Chalk bryozoan are smaller than in the Faringdon specimen. Lonsdale's {in Dixon 1850) type of Diastopora sowerbyi is unfortunately missing. The Faringdon specimen also resembles a colony figured by Hillmer (1971) from the Hauterivian of Germany as Reptomultisparsa sp. on account of the multi- lamellar growth-form. Suborder CERIOPORINA von Hagenow, 1851 Family HETEROPORIDAE Waters, 1880 Genus HETEROPORA Blainville, 1830 Type species. Ceriopora cryptopora Goldfuss, 1826, desig- nated by Gregory (1896); Maastrichtian of Maastricht, Netherlands. Remarks. Numerous Jurassic to Recent cerioporine species have been referred by various authors to Blainville's (1830) genus Heteropora. Most possess dendroid branching colonies and well-defined zooecial dimorphism with autozooecial apertures surrounded by smaller kenozooecial apertures. This concept of the genus is, however, erroneous. Nye (1976) studied specimens of the type species, H. cryptopora (Gold- fuss) from the Maastrichtian, and found no evidence of zooecial dimorphism. Furthermore, instead of having dendroid branches with endozones and exozones, colonies are bulbous and constructed of a series of overgrowths. The correct generic assignment of dendroid, dimorphic cerioporines previously referred to Heteropora remains un- clear. For the one such species {Heteropora keepingi Gregory) from the Faringdon Sponge Gravel the genus name Heteropora is therefore used tentatively. However, a second Faringdon species, H. clavata, sensu Gregory 19096, may be more closely related to the type species. Range. In the broad taxonomic sense, Aalenian to Recent. Heteropora clavata, sensu
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