1. Biogeographic affinities of Middle and late devonian fishes of South Africa;Anderson;Record West Aust. Mus. Suppl.,1999
2. Exceptionally preserved conulariids from the conularienschichten, fossil- lagerstätten in the devonian of Bolivia;Babcock;Rev. Tec. Yacimientos Pet. Fisc. Boliv.,1993
3. The phylum conulariida;Babcock,1986
4. Devonian conulariids of Bolivia;Babcock;Natl. Geogr. Res.,1987
5. Early and Middle devonian gastropod biogeography;Blodgett;Geological Society London Memoirs,1990