BioNames
Timeline
Dashboard
API
Names
Bibliography
Species
Name(s) in cluster
†Spirifer transversa Semichatova 1941
urn:lsid:organismnames.com:name:2992127
...
†Spirifer transversa Semichatova 1941
Semichatova 1941. The group of Spirifer trigonalis Martin from the Lower Carboniferous supra-coalbearing beds of Moscow basin. Travaux Inst Paleont Acad Sci URSS, 12(3) 1941: pp. 1-174