Cowan & Soderstrom 1925 (Guyana, Potaro-Siparuni Region, Potaro R. Gorge, Johnson's View down to base of Kaieteur Falls, Cowan & Soderstrom 1925)

Derived Unit

Derivation tree

  • Guyana, Potaro-Siparuni Region, Potaro R. Gorge, Johnson's View down to base of Kaieteur Falls, Cowan & Soderstrom 1925
    • Guyana, Potaro-Siparuni Region, Potaro R. Gorge, Johnson's View down to base of Kaieteur Falls, Cowan & Soderstrom 1925