Gillespie et al. 1888 (Guyana, Upper Takutu-Upper Essequibo Region, SE Kanuku Mts., Mt. Ishtaban, Gillespie et al. 1888)

Derived Unit

Derivation tree

  • Guyana, Upper Takutu-Upper Essequibo Region, SE Kanuku Mts., Mt. Ishtaban, Gillespie et al. 1888
    • Guyana, Upper Takutu-Upper Essequibo Region, SE Kanuku Mts., Mt. Ishtaban, Gillespie et al. 1888