Itaboraian

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.

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

Itaboraian is located in South America
Itaboraian
Itaboraian
Itaboraian
Itaboraian
Itaboraian
Itaboraian
Itaboraian
Itaboraian
Itaboraian
Locations of Itaboraian formations
Formation
bold is type
Country Basin Notes
Itaboraí Formation  Brazil Itaboraí Basin
Bogotá Formation  Colombia Altiplano Cundiboyacense
Cerrejón Formation  Colombia Cesar-Ranchería Basin
Chota Formation  Peru Bagua Basin
Koluel Kaike Formation  Argentina Golfo San Jorge Basin
Las Flores Formation  Argentina Golfo San Jorge Basin
Maíz Gordo Formation  Argentina Salta Basin
Mogollón Formation  Peru Talara & Tumbes Basins
Muñani Formation  Peru Altiplano Basin

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 PeñasColoradas
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

Itaboraian correlations in South America
Formation Itaboraí Las Flores Koluel Kaike Maíz Gordo Muñani Mogollón Bogotá Cerrejón Ypresian (IUCS) • Wasatchian (NALMA)
Bumbanian (ALMA) • Mangaorapan (NZ)
Basin Itaboraí Golfo San Jorge Salta Altiplano Basin Talara &
Tumbes
Altiplano
Cundiboyacense
Cesar-Ranchería
Itaboraian is located in South America
Itaboraian
Itaboraian
Itaboraian
Itaboraian
Itaboraian
Itaboraian
Itaboraian
Itaboraian
Itaboraian (South America)
Country  Brazil  Argentina  Peru  Colombia
Carodnia
Gashternia
Henricosbornia
Victorlemoinea
Polydolopimorphia
Birds
Reptiles
Fish
Flora
Environments Alluvial-lacustrine Alluvial-fluvial Fluvio-lacustrine Lacustrine Fluvial Fluvio-deltaic
Itaboraian volcanoclastics

Itaboraian fauna

Itaboraian flora
Volcanic Yes

This page was last updated at 2024-03-25 06:31 UTC. Update now. View original page.

All our content comes from Wikipedia and under the Creative Commons Attribution-ShareAlike License.


Top

If mathematical, chemical, physical and other formulas are not displayed correctly on this page, please useFirefox or Safari