Class [Mammalia] Linnaeus, 1758 - mammals
Ref: G.B. Corbet & J.E. Hill, 1991 [inferred name]; Count: [*] 21o;132f;1061g;4316s; ‡1f;5g;38s
   Order Rodentia Bowdich, 1821 - rodents
  Ref: G.B. Corbet & J.E. Hill, 1991: 136; Count: [*] 29f;399g;1788s; ‡1g;16s
     Family Echimyidae Gray, 1825 - spiny rats
    Ref: G.B. Corbet & J.E. Hill, 1991: 205; Count: [*] 14g;63s
       Genus Proechimys Allen, 1899 - spiny rats
      Ref: G.B. Corbet & J.E. Hill, 1991: 205; Count: [*] 29s
         Proechimys trinitatis (J.A. Allen & Chapman, 1893)
        Ref: G.B. Corbet & J.E. Hill, 1991: 206; Count: -