Edrioasteroidea from the Seifen Formation of the Westerwald, Rhenish Slate Mountains (Lower Devonian, Germany), part 2: Sumrallia rseiberti gen. et sp. nov.
1989 ◽
Vol 1989
(6)
◽
pp. 356-374
◽
1981 ◽
Vol 1981
(11)
◽
pp. 697-704
1966 ◽
Vol 115
(2-3)
◽
pp. 682-691