Ophiuroidea - Oegophiurida - Lapworthuridae
Synonym: Palaeospondylidae Stürtz 1899
Full reference: J. W. Gregory. 1897. On the classification of the Palaeozoic echinoderms of the group Ophiuroidea. Proceedings of the Zoological Society of London 1896:1028-1044
Parent taxon: Zeugophiurina according to A. Glass and M. Poschmann 2006
See also Owen 1965, Schuchert 1915, Spencer and Wright 1966 and Webster et al. 1999
Sister taxon: Furcasteridae
Subtaxa: Hallaster Lapworthura Miospondylus Ophiopolytretus
Type: Lapworthura
Ecology: slow-moving low-level epifaunal detritivore-suspension feeder
Distribution:
• Devonian of Australia (1 collection), Germany (1), United States (1: Colorado)
• Silurian of the United Kingdom (1)
• Ordovician of Canada (1: Ontario)
Total: 5 collections including 6 occurrences