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The type species of Stictostroma Parks, 1936 (Porifera, Stromatoporoidea)
Published online by Cambridge University Press: 14 July 2015
Abstract
The typical species of Parks' stromatoporoid genus Stictostroma designated as Stromatopora mammillata Nicholson, 1873, and renamed S. mamilliferum to avoid homonymy by Galloway and St. Jean (1957), had unknown internal structure because Nicholson's type specimens were not sectioned. Parks' (1936) diagnosis of generic characters was based on specimens from a location (Gorrie) far from the type locality of S. mammillata that he assumed were conspecific with Nicholson's species. Investigation of the type specimens of Stromatopora mammillata = Stictostroma mamilliferum by thin sections shows that they are very poorly preserved and not conspecific with the specimens on which Parks based the genus. Because paleontologists for many years have used Stictostroma as amended from Parks' description by Galloway and St. Jean, the species from Gorrie that clearly shows these characters should be recognized as the typical species and given a new name.
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