From Wikipedia, the free encyclopedia
The Friasian age is a period of
geologic time (16.3–15.5
Ma ) within the
Early Miocene epoch of the
Neogene , used more specifically within the
SALMA classification of South America. It follows the
Santacrucian and precedes the
Colloncuran age.
[1]
Etymology
The age is named after the
Río Frías Formation in the
Aysén Basin ,
Patagonia ,
Chile .
Formations
Locations of Friasian formations
Fossils
Group
Fossils
Formation
Notes
Mammals
Abderites aisenense ,
A. meridionalis ,
Alloiomys friasensis ,
Astrapotherium hesperinum ,
Borhyaena tuberata ,
Cladosictis patagonica ,
Megathericulus friasensis ,
Microbiotherium tehuelchum ,
Parabderites bicrispatus ,
Palaeothentes intermedius ,
P. lemoinei ,
P. minutus ,
Pichipilus halleuxi ,
Pitheculites rothi ,
Prothylacinus patagonicus ,
Prototrigodon rothi ,
Sipalocyon gracilis ,
Adinotherium sp. ,
Homalodotherium sp. ,
Neonematherium sp. ,
Nesodon sp. ,
Pachyrukhos sp. ,
Phoenixauchenia sp. ,
?Propalaehoplophorus sp. ,
Protypotherium sp. ,
Prozaedyus sp. ,
Theosodon sp. ,
Trachytypotherium sp. ,
Platyrrhini indet.
Río Frías
Lycopsis padillai ,
?Hyperleptus sp. ,
Astrapotheriidae ,
Odontoceti ,
Mysticeti ,
Glyptodontidae ,
Pampatheriidae ,
Macraucheniidae ,
Proterotheriidae ,
Leontinidae ,
Toxodontidae ,
Interatheriidae ,
Megatheriidae ,
Dinomyidae ,
Sirenia ,
Sparassodonta
Castilletes
Hegetotherium cerdasensis ,
Juchuysillu arenalesensis ,
Llullataruca cf. shockeyi ,
Microtypotherium cf. choquecotense ,
Protypotherium cf. attenuatum ,
"Plesiotypotherium" minus ,
Palyeidodon obtusum ,
Mcdonaldocnus bondesioi ,
Borhyaenoidea indet. ,
Euphractini indet. ,
Lagostominae indet. ,
Macraucheniidae indet. ,
Megatheriinae indet. ,
Mesotheriinae indet. ,
Peltephilidae indet. ,
Uruguaytheriinae indet.
Cerdas
[22]
[23]
Adinotherium sp. ,
Peltephilidae indet.
Río Yuca
Reptiles
Chelus colombiana ,
Chelonoidis sp. ,
cf. Crocodylus sp. ,
cf. Mourasuchus sp. ,
cf. Purussaurus sp. ,
Alligatoridae indet. ,
Boidae indet. ,
Eusuchia indet. ,
Gavialoidea indet. ,
Podocnemididae indet.
Castilletes
Barinasuchus arveloi
Parángula
Purussaurus sp.
Río Yuca
Birds
Aves indet.
Castilletes
Palaeospheniscus bergi ,
Spheniscidae indet.
Río Foyel
Fish
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
Carcharodon hastalis
Río Foyel
Phractocephalus sp. ,
Platysilurus sp.
Río Yuca
References
^
Paleo Database: Friasian
^ Marshall, 1990
^ Marshall & Salinas, 1990
^ Moreno et al., 2015, p.7
^ Croft et al., 2016, p.2
^ De la Cruz, 2008, p.53
^ Solíz Mundaca, 2018, p.13
^ Utgé et al., 2009
^ Reichler, 2010, p.181
^ Paolillo & Linares, 2007, p.2
^ Antoine et al., 2016, p.56
^ Wesselingh et al., 2006, p.304
^ Acosta Hospitaleche et al., 2018, p.442
^ Acosta Hospitaleche et al., 2013, p.491
^ Rincón et al., 2016, p.19
^ Abello & Rubilar, 2012, p.180
^
Río Frías at
Fossilworks .org
^
Alto Río Cisnes at
Fossilworks .org
^ Suárez et al., 2015, p.4
^ Amson et al., 2016, p.7
^
a
b
c
d Moreno et al., 2015, p.35
^
Cerdas in the
Paleobiology Database
^
Cerdas-Atocha in the
Paleobiology Database
^
a
b
c Rincón et al., 2016, pp.6-10
^ Moreno Bernal, 2014, pp.7–30
^ Cadena & Jaramillo, 2015, pp.190–196
^
Quebrada Socó at
Fossilworks .org
^
a
b
Cerro Plataforma at
Fossilworks .org
^
Kaitamana at
Fossilworks .org
Bibliography
Río Frías Formation
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Castilletes Formation
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Cerdas Beds
Chilcatay Formation
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Cura-Mallín Group
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Gran Bajo del Gualicho Formation
Parángula Formation
Pebas Formation
Río Foyel Formation
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Middle Cenozoic penguin remains from the Patagonian Cordillera .
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ISBN
978-3-319-67774-3
Río Yuca Formation
Ages Defining formations and sites
Sources