Stratigraphy
provided by World Register of Marine Species
Blackdown Greensand
Smith, A. B. & Wright, C. W. 2008. British Cretaceous echinoids. Part 8, Atelostomata, 2. Spatangoida (1). Monographs of the Palaeontographical Society 162, 569-635.
- license
- cc-by-4.0
- copyright
- WoRMS Editorial Board