Type species: Saffordotaxis multinodata Wass, 1968
This genus includes the species:
| Crockfordia bruteni | (Crockford, 1957) | Early Permian Artinskian | Australia WA |
| Crockfordia cylindrica | (Crockford, 1941) | Early Permian Sakmarian | Australia NSW |
| Crockfordia grantonensis | (Crockford, 1943) | Early Permian Artinskian | Australia Tas |
| Crockfordia multinodata | (Wass, 1968) | Early Permian Sakmarian | Australia Qld |
Reference: Morozova, I. P., 2004. New Early Permian Bryozoans of Eastern Australia [in Russian].
Paleontologicheskii Zhurnal 2004 (4): 381-392.
http://www.maik.rssi.ru/cgi-bin/search.pl?type=abstract&name=paleng&number=4&year=4&page=381
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