The Colloncuran () age is a period of geologic time (15.5–13.8 Ma) within the Middle Miocene epoch of the Neogene, used more specifically within the SALMA classification in South America. It follows the Friasian and precedes the Laventan age.Paleo Database: Colloncuran
Etymology The age is named after the Collón Curá Formation in the Cañadón Asfalto and Neuquén Basins of northern Patagonia, Argentina.
Formations
Formation Country Basin Notes Collón Curá Formation Cañadón Asfalto BasinNeuquén Basin Castilletes Formation Cocinetas Basin Cura-Mallín Group Cura-Mallín Basin Gran Bajo del Gualicho Formation Colorado Basin Nazareno Formation Tupiza Basin Pebas Formation Amazon Basin Pisco Formation Pisco Basin
Fossils Group Fossils Formation Notes Mammals Abderites aisenense, Galileomys colloncurensis, Guiomys unica, Maruchito trilofodonte, cf. Microcardiodon williensis, Patagosmilus goini, Neosteiromys tordillense, ?Neotamandua australis, Propithecia neuquenensis, Protacaremys denisae, Protypotherium colloncurensis, Acarechimys sp., Alloiomys sp., cf. Arctodictis sp., Neoreomys sp., Prolagostomus sp., Cebidae indet., Dasyproctidae indet., Echimyidae indet., Eocardiidae indet., Erethizontidae indet., Stegotheriini indet. Collón Curá Lycopsis padillai, Hilarcotherium miyou, ?Hyperleptus sp., Astrapotheriidae, Odontoceti, Mysticeti, Glyptodontidae, Pampatheriidae, Macraucheniidae, Proterotheriidae, Leontinidae, Toxodontidae, Interatheriidae, Megatheriidae, Dinomyidae, Sirenia, Sparassodonta Castilletes Hegetotherium cerdasensis, Juchuysillu arenalesensis, "Plesiotypotherium" minus, Acarechimys sp., Diadiaphorus sp., ?Neothoracophorus sp., cf. Peltephilus sp., Plesiotypotherium sp., Prolagostomus sp., Propalaehoplophorus sp., Proterotherium sp., Stenotatus sp., ?Acrocyon sp., cf. Xyophorus sp., ?Astrapotheriidae indet., ?Borhyaenidae indet., Chinchillinae n sp., Euphractini indet., Eutatini indet., Interatheriinae indet., Macraucheniidae indet., Megatheriinae indet., Octodontidae indet., Toxodontidae indet. Nazareno Nazareno, Potosí at Fossilworks.orgNazareno 2 in the Paleobiology DatabaseCroft & Anaya, 2020Croft et al., 2016Oiso, 1991Marshall & Sempere, 1991 Chavinziphius maxillocristatus, Chimuziphius coloradensis, Incakujira anillodefuego, Messapicetus gregarius, Brachydelphis sp., Monachinae indet., Phocidae indet. Pisco Birds Kelenken guillermoi Collón Curá Aves indet. Castilletes ?Phorusrhacidae indet. Nazareno Sulidae indet. Pisco Reptiles Chelonoidis gringorum, Waincophis australis, Boinae indet., Lacertilia indet. Collón Curá Chelus colombiana, Chelonoidis sp., cf. Crocodylus sp., cf. Mourasuchus sp., cf. Purussaurus sp., Alligatoridae indet., Boidae indet., Crocodylidae indet., Eusuchia indet., Gavialoidea indet., Podocnemididae indet. Castilletes ?Testudinidae indet. Nazareno Pacifichelys urbinai Pisco Fishes Megalodon, Characidae, Serrasalmidae, Sciaenidae, Sparidae, Sphyraenidae, Ariidae, Callichthyidae, Doradidae, Pimelodidae, Carcharhinidae, Hemigaleidae, Sphyrnidae, Lamnidae, Otodontidae, Dasyatidae, Myliobatidae, Rhinopteridae, Ginglymostomatidae, Pristiophoridae, Pristidae, Rhynchobatidae, Rhynobatidae, Lepidosirenidae Castilletes Nematogenys cuivi Cura-Mallín Megalodon, Carcharhinus cf. albimarginatus, Carcharhinus cf. brachyurus, Carcharodon hastalis, Galeocerdo cf. contortus, Hemipristis serra, Isurus sp. Pisco
References
Bibliography Collón Curá Formation
Castilletes Formation
Cura-Mallín Group
Gran Bajo del Gualicho Formation
Nazareno Formation
Pebas Formation
Pisco Formation