From Wikipedia, the free encyclopedia
The Mayoan (
Spanish : Mayoense ) age is a period of
geologic time from 11.8 to 10
Ma , within the
Middle to Late Miocene epoch of the
Neogene , used more specifically within the
SALMA classification in South America. It follows the
Laventan and precedes the
Chasicoan age.
[1]
Etymology
The age is named after the
Río Mayo Formation in the
Golfo San Jorge Basin of
Patagonia , Argentina.
Formations
Locations of Mayoan formations
Fossil content
Group
Fossils
Formation
Notes
Mammals
Megathericulus patagonicus
Río Mayo
Caraguatypotherium munozi ,
Epipeltephilus caraguensis
Huaylas
Brujadelphis ankylorostris
Pisco
Cardiatherium patagonicum ,
Kawas benegasorum ,
Notoziphius bruneti ,
Scirrotherium carinatum ,
Lagostomus (Lagostomopsis) sp. ,
Dolichotinae indet. ,
Macraucheniidae indet. ,
Mylodontinae indet. ,
Neuryurini indet. ,
Palaehoplophorini indet.
Puerto Madryn
cf. Theosodon sp.
Yecua
Birds
Kuntur cardenasi ,
Ramphastosula aguirrei ,
Sula brandi ,
S. figueroae
Pisco
Madrynornis mirandus ,
Palaeospheniscus bergi ,
Accipitridae indet. ,
Dendrocygninae indet. ,
Psilopteridae indet.
Puerto Madryn
Reptiles
Mourasuchus sp. ,
Pleurodira indet.
Yecua
Fishes
Cosmopolitodus hastalis
Coquimbo
Loricariidae indet. ,
Percomorpha indet. ,
Siluriformes indet.
Puerto Madryn
cf. Ariidae indet. ,
Teleostei indet.
Yecua
References
^
Paleo Database: Mayoan
^ Ecosteguy et al., 2003
^ Le Roux et al., 2006, p.49
^ Reichler, 2010, p.181
^ García et al., 1999, p.251
^ Marshall & Sempere, 1991, p.636
^ Finger et al., 2007, p.13
^ Martín Pérez, 2013, p.51
^ Antoine et al., 2016, p.56
^ Wesselingh et al., 2006, p.304
^ Brand et al., 2011
^ Acosta Hospitaleche et al., 2007, p.301
^ Linares, 2004, p.16
^ Hernández et al., 2002, p.5
^
Arroyo Pedregoso at
Fossilworks .org
^ Montoya Sanhueza et al., 2017
^
Caragua at
Fossilworks .org
^ Lambert et al., 2017
^
a
b
c
Rincón Chico at
Fossilworks .org
^
a
b
La Pastosa at
Fossilworks .org
^
Punta San Román at
Fossilworks .org
^
Playa El Doradillo at
Fossilworks .org
^
Yecua at
Fossilworks .org
^ Stucchi et al., 2015a
^ Stucchi et al., 2015b
^
Puerto Madryn Autodromo at
Fossilworks .org
^
Playa Villarino at
Fossilworks .org
^
a
b
La Angostura, Margin of Piraí River at
Fossilworks .org
^
Tongoy area Unit 4 at
Fossilworks .org
Bibliography
Río Mayo Formation
Coquimbo Formation
Gran Bajo del Gualicho Formation
Huaylas Formation
Mauri Formation
Navidad Formation
Paraná Formation
Pebas Formation
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Carlos Jaramillo , Sebastian Klaus, Laurent Marivaux, Rosa E. Navarrete, Maëva J. Orliac, Francisco Parra, María Encarnación Pérez, François Pujos, Jean-Claude Rage, Anthony Ravel, Céline Robinet, Martin Roddaz, Julia Victoria Tejada Lara, Jorge Vélez Juarbe, Frank P. Wesselingh, Rodolfo Salas Gismondi. 2016.
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Pisco Formation
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New beaked whales from the late Miocene of Peru and evidence for convergent evolution in stem and crown Ziphiidae (Cetacea, Odontoceti) .
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Puerto Madryn Formation
Urumaco Formation
Carrillo Briceño, Jorge D.; Erin Maxwell; Órangel A. Aguilera; Rodolfo Sánchez, and Marcelo R. Sánchez Villagra. 2015.
Sawfishes and Other Elasmobranch Assemblages from the Mio-Pliocene of the South Caribbean (Urumaco Sequence, Northwestern Venezuela) .
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Linares, Omar J. 2004.
Bioestratigrafía de la fauna de mamíferos de las formaciones Socorro, Urumaco y Codore (Mioceno Medio-Plioceno Temprano) de la región de Urumaco, Falcón, Venezuela . Paleobiología Neotropical 1. 1–26. Accessed 2017-08-15.
Quijano Ballesteros, Jhon Richard. 2005.
Estudio magnetoestratigráfico en la sección de El Mamón (miembro medio de la Formación Urumaco, Estado Falcón) (MSc. thesis) , 1–92.
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Rincón, Ascanio D.; Andrés Solórzano; H. Gregory McDonald, and Marisol Montellano Ballesteros. 2018.
Two new megalonychid sloths (Mammalia: Xenarthra) from the Urumaco Formation (late Miocene), and their phylogenetic affinities .
Journal of Systematic Palaeontology 17(5). 409–421. Accessed 2019-02-11.
Rincón, Ascanio D.; H. Gregory McDonald; Andrés Solórzano; Mónica Núñez Flores, and Damián Ruiz Ramoni. 2015.
A new enigmatic Late Miocene mylodontoid sloth from northern South America .
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Yecua Formation
Ages Defining formations and sites
Sources