From Wikipedia, the free encyclopedia
Stratigraphy and location of the Itaboraí Basin. Crocodile skull indicates
Sahitisuchus find.
The Itaboraian (
Portuguese : Itaboraiense ) age is a period within the
Early Eocene
geologic time (53.0–50.0
Ma ) epoch of the
Paleogene , used more specifically with
South American land mammal ages (SALMA). It follows the
Riochican and precedes the
Casamayoran age.
[1]
Etymology
This age is named after the
Itaboraí Formation in the
Itaboraí Basin in
Itaboraí , a
Greater Rio municipality in the state of
Rio de Janeiro in
Brazil not very far away from Niterói.
Formations
Locations of Itaboraian formations
Fossils
Group
Fossils
Formation
Notes
Mammals
Asmithwoodwardia scotti ,
Austropediomys marshalli ,
Bergqvistherium primigenia ,
Bobbschaefferia fluminensis ,
Camargomendesia pristina ,
Carodnia vieirai ,
Carolocoutoia ferigoloi ,
Carolopaulacoutoia itaboraiensis ,
Colbertia magellanica ,
Derorhynchus singularis ,
Didelphopsis cabrerai ,
Eobrasilia coutoi ,
Epidolops ameghinoi ,
Gashternia carioca ,
Gaylordia macrocynodonta ,
Gaylordia mater ,
Guggenheimia brasiliensis ,
Guggenheimia crocheti ,
Homalostylops atavus ,
Itaboraidelphys camposi ,
Lamegoia conodonta ,
Marmosopsis juradoi ,
Miguelsoria parayirunhor ,
Minusculodelphis minimus ,
M. modicum ,
Mirandatherium alipioi ,
Monodelphopsis travassosi ,
Palaeocladosictis mosesi ,
Paranisolambda prodromus ,
Patene simpsoni ,
Periprotodidelphis bergqvistae ,
Procaroloameghinia pricei ,
Protodidelphis mastodontoides ,
P. vanzolinii ,
Protolipterna ellipsodontoides ,
Ricardocifellia protocenica ,
Riolestes capricornicus ,
Riostegotherium yanei ,
Tetragonostylops apthomasi ,
Victorlemoinea prototypica ,
Xenodelphis doelloi ,
Zeusdelphys complicatus ,
?Arminiheringia sp. ,
Henricosbornia sp. ,
Australidelphia indet. ,
Borhyaenidae indet. ,
Didelphidae indet. ,
Didolodontidae indet. ,
Herpetotheriidae indet. ,
Microbiotheriidae indet. ,
Notoungulata indet. ,
Paucituberculata indet. ,
Pediomyidae indet. ,
Peradectidae indet. ,
Polydolopidae indet. ,
Protodidelphidae indet.
Itaboraí
Ernestokokenia yirunhor ,
Gashternia ctalehor ,
Henricosbornia waitehor ,
Seudenius cteronc ,
Shecenia ctirneru ,
?Isotemnus ctalego ,
?Peripantostylops orehor ,
?Polydolops kamektsen ,
Kibenikhoria sp. ,
Archaeopithecidae indet. ,
Borhyaenidae indet. ,
?Litopterna indet. ,
?Notostylopidae indet.
Koluel Kaike
Anisolambda sp. ,
Antepithecus sp. ,
Asmithwoodwardia sp. ,
Bardalestes sp. ,
Bobbschaefferia sp. ,
Camargomendesia sp. ,
Carolopaulacoutoia sp. ,
Colbertia sp. ,
Derorhynchus sp. ,
Didelphopsis sp. ,
Epidolops sp. ,
Ernestokokenia sp. ,
Gashternia sp. ,
Guggenheimia crocheti ,
Henricosbornia sp. ,
Isotemnus sp. ,
Itaboraitherium sp. ,
Kibenikhoria sp. ,
Marmosopsis sp. ,
Mirandatherium sp. ,
Monodelphopsis sp. ,
Peripantostylops sp. ,
Polydolops sp. ,
Procaroloameghinia pricei ,
Protodidelphis sp. ,
Shecenia sp. ,
Trigonostylops sp. ,
Victorlemoinea sp. ,
Woodburnodon sp. ,
Ceratodontidae indet. ,
?Patene indet.
Las Flores
Carodnia inexpectans
Mogollón
Chulpasia mattaueri ,
Peradectes austrinum ,
Perutherium altiplanense ,
Sillustania quechuense ,
Umayodus raimondi ,
Didelphidae indet. ,
?Didolodontidae indet. ,
Notoungulata sp. ,
Pediomyidae indet. ,
Proteutheria indet.
Muñani
Birds
Diogenornis fragilis ,
Eutreptodactylus itaboraiensis ,
Itaboravis elaphrocnemoides ,
Paleopsilopterus itaboraiensis
Itaboraí
Latidae indet. ,
Siluriformes indet. ,
Tetragonopterinae indet.
Muñani
Reptiles & amphibians
Acherontisuchus guajiraensis ,
Anthracosuchus balrogus ,
Carbonemys cofrinii ,
Cerrejonemys wayuunaiki ,
Cerrejonisuchus improcerus ,
Pelomedusoides sp. ,
Puentemys mushaisaensis ,
Titanoboa cerrejonensis
Cerrejón
?Madtsoia sp.
Koluel Kaike
Notocaiman stromeri
Peñas Coloradas
Bretesuchus bonapartei
Maíz Gordo
Apodops pricei ,
Coniophis cf. precedens ,
Corallus priscus ,
Hechtophis austrinus ,
Hoffstetterella brasiliensis ,
Itaboraiophis depressus ,
Madtsoia camposi ,
Paraungaliophis pricei ,
Paulacoutophis perplexus ,
Sahitisuchus fluminensis ,
Waincophis cameratus ,
Waincophis pressulus ,
Xenopus romeri ,
? Russellophiidae indet.
Itaboraí
Lorosuchus nodosus ,
Pelomedusoides cf. argentinensis
Río Loro
cf. Coniophis sp. ,
?Roxochelys vilavilensis ,
Crocodylia indet. ,
?Leptodactylidae indet.
Muñani
Fishes
Dipnoi sp. ,
Elopomorpha sp.
Cerrejón
Lepidosiren cf. paradoxa ,
Ceratodus sp.
Muñani
Molluscs
Bulimulus fazendicus
Itaboraí
Flora
Menispina evidens
Bogotá
Stephania palaeosudamericana
Bogotá ,
Cerrejón
Malvaciphyllum macondicus ,
Petrocardium cerrejonense ,
Petrocardium wayuuorum
Cerrejón
Correlations
References
^
Paleo Database: Itaboraian
^
a
b Oliveira & Goin, 2011
^ Bayona et al., 2012, p.103
^ Jaramillo et al., 2007, p.168
^ Chacaltana et al., 2015, p.2
^ Castro Medina, 2010, p.53
^ Raigemborn et al., 2010, p.251
^ Raigemborn et al., 2010, p.249
^ Narváez, 2009, p.24
^ Quispe Alcalá, 2010, p.21
^ Gelfo & Goin, 2011
^ Oliveira et al., 2016
^ Carneiro et al., 2018
^ Carneiro, 2018
^ De Oliveira & Goin, 2015
^
a
b
São José de Itaboraí at
Fossilworks .org
^
São José 700 m at
Fossilworks .org
^
a
b
Cañadón Hondo at
Fossilworks .org
^
Las Flores at
Fossilworks .org
^ Antoine et al., 2015
^
Carodnia inexpectans at
Fossilworks .org
^ Gelfo & Sigé, 2011
^
Laguna Umayo at
Fossilworks .org
^
a
b
c
d
LURMU at
Fossilworks .org
^
Diagenornis at
Fossilworks .org
^
Itaboravis at
Fossilworks .org
^
Paleopsilopterus at
Fossilworks .org
^
a
b
La Puente Pit at
Fossilworks .org
^
Anthracosuchus at
Fossilworks .org
^
Notocaiman stromeri at
Fossilworks .org
^
Bretesuchus at
Fossilworks .org
^
Itaboraí snakes at
Fossilworks .org
^
Portland Quarry at
Fossilworks .org
^
El Cadillal at
Fossilworks .org
^ Salvador & Simone, 2013, p.7
^
Menispina evidens at
Fossilworks .org
^
Stephania palaeosudamericana at
Fossilworks .org
^
Cerrejón 0315 at
Fossilworks .org
^
Coalbeds 100 at
Fossilworks .org
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Koluel Kaike Formation
Maíz Gordo Formation
Mogollón Formation
Muñani Formation
Peñas Coloradas Formation
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Río Loro Formation
Ages Defining formations and sites
Sources