Species: niger (SPIX, 1825) (Living)
Etymology: Latin, niger, "black"; referring to the very dark coloration of the species.
(Great Caiman, Black caiman, Caimán, Caimán negro, Caïman noir, Lagarto negro, Jacare Açu, Jacaré Assú, Jacare Açu, Jacare Uassu, Jaracé Una, Yacare Assu)

Locality: River Amazon.

= Caiman niger SPIX, 1825
= Alligator niger (SPIX, 1825)
= Jacare niger (SPIX, 1825)
= Champsa nigra WAGLER ,1830
= Jacare nigra (WAGLER, 1830)
= Jacaretinga nigra (WAGLER, 1830)
= Alligator sclerops (SCHNEIDER) (partim) GRAY, 1831
_____________________________________________________________________________________

Species: fisheri MEDINA, 1976
Etymology:

Holotype: Museo de Ciencias Naturales de Caracas no, MCNC- 243

Locality: Corralito, 1/2 km northwest of Camo El Mamon, east of the El Jebe Fault, Campo El Mamon is 2.5 km north of Urumaco, Northwestern Venezuela.

Horizon: Upper part of the upper member of the Urumaco Formation, Huayquerian.

Biostratigraphy:

Age: Pliocene Epoch, Upper Neogene Period, Lower Quaternary Subera, Upper Cenozoic Era.

Material: Skull lacking the pterygoids, parts of the ectopterygoids, palatines, jugals, and premaxillaries, and parts of the left postfrontal and quadrate.

Referred material:

Locality: 4 km northeast of El Mamon, some 20 m west of the Chiguaje, Fault, Campo El Mamon is 2.5 km north of Urumaco, Falcon State, North western Venezuela.

Horizon: Upper part of the upper member of the Urumaco Formation, Huayquerian.

Biostratigraphy:

Age: Pliocene Epoch, Upper Neogene Period, Lower Quaternary Subera, Upper Cenozoic Era.

Material:

MCZ 4336: Skull lacking the pterygoids, the left quadrate and quadratojual, and parts of the basioccipital and left squamosal, the posterior 2/3 of both rami of the mandible.

_____________________________________________________________________________________

Species: latrubessei de SOUZA-FILHO, GUILHERME, de TOLEDO, de SOUZA CARVALHO, Negri, da ROCHA MACIENTE, CIDADE, da SILVA LACERDA & de SOUZA, 2020
Etymology: In honor of the Argentinean geomorphologist Dr. Edgardo M. Latrubesse. His geopaleontological contributions were very important to the increase of knowledge about orgin and evolution of the Solimoes Formation. Dr. Edgardo also provided important scientific contributions for universidade Federal do Acre throught collaborations in partnership with Laboratorio de Pesquisas Paleontologicas.

Holotype: UFAC 2793

Locality: Talisma outcrop on the bank of the Purus River, Soutehrn region of the Amazonas State, Brazil.

Horizon: Solimoes Formation

Biostratigraphy:

Age: Tortonian, Eocene Epoch, Paleogene Period, Tertiary Subera, Lower Ceozoic era-Pliocene Epoch, Upper Neogene Period, Lower Quaternary Subera, Upper Cenozoic Era.

Material: Right part of a rostrum.