The Riochican (Spanish: Riochiquense) age is a period of geologic time (57.0–54.0 Ma) within the Paleocene and Eocene epochs of the Paleogene, used more specifically within the South American land mammal ages (SALMA). It follows the Peligran and precedes the Itaboraian age.[1]
The Riochican (Spanish: Riochiquense) age is a period of geologic time (57.0–54.0 Ma) within the Paleocene and Eocene epochs of the Paleogene, used more...
upper Tiffanian and Clarkforkian North American land mammal ages, the Riochican and part of the Itaboraian South American land mammal ages and the upper...
Peltephilids Temporal range: Early Eocene (Riochican) to late Miocene (Chasicoan), 57–9 Ma PreꞒ Ꞓ O S D C P T J K Pg N Skull of Peltephilus Scientific...
Palmoxylon (petrified palmwood) is an extinct genus of palm named from petrified wood found around the world. This genus is known in the fossil record...
specifically with South American land mammal ages (SALMA). It follows the Riochican and precedes the Casamayoran age. This age is named after the Itaboraí...
any other known meridiungulate. C. feruglioi and C. cabrerai, from the Riochican in the SALMA classification of Patagonia, are known from only a few dental...
Eocene-Miocene. The Brazilian, Itaboraian Tetragonostylops and the Argentinian, Riochican Eoastrapostylops are the oldest astrapotheres. The latter, with its low-crowned...
Itaboraian 54.0 54.0 Itaboraí Formation Brazil Rio de Janeiro State Riochican 54.0 57.0 Río Chico Group Argentina Chubut Province Late Paleocene Mid...
The oldest of the 12 genera in this family is Isotemnus known from the Riochican-Casamayoran, but other genera are known from the Casamayoran, including...
mollusk in the family Bulimulidae, from the Late Paleocene (Itaboraian to Riochican) deposits of the Itaboraí Basin in Brazil. Brazil portal Paleontology...
comprising five genera of notoungulate mammals known from the Late Paleocene (Riochican) to Early Oligocene (Tinguirirican) of Argentina, Brazil and Chile in...
American land mammal ages (SALMA). It follows the Tiupampan and precedes the Riochican age. The age is named after the paleontological site Punta Peligro [es]...
Notiolofos Temporal range: Early Eocene-Late Eocene (Riochican-Divisaderan) ~55–34 Ma PreꞒ Ꞓ O S D C P T J K Pg N Scientific classification Domain: Eukaryota...
Richmondian 449 445.6 ± 1.5 age Ordovician North America Winchell & Ulrich 1897 Riochican 57 54 age Eo-Paleocene South America Simpson, 1940 Riphean 1,650 650 age...
Sudamerica, literally "South America" in Spanish, is a genus of mammal from the extinct suborder Gondwanatheria that lived in Patagonia, Argentina (Salamanca...
closely related but had similar teeth. Victorolemoinea lived during the Riochican and Itaboraian South American land mammal ages, which date to the Ypresian...
Pascual et al. in 1978. The Mealla Formation was initially described as Riochican in the South American land mammal age classification, and later as Itaboraian...
deposition of the Mealla Formation. The formation was initially described as Riochican, and later as Itaboraian, but after the redefinition of the Itaboraí Formation...
Diogenornis is an extinct genus of ratites, that lived during the Early Eocene (Itaboraian to Casamayoran in the SALMA classification). It was described...
Henricosbornia is an extinct genus of henricosborniid notoungulate that lived from the Late Paleocene to the Middle Eocene of what is now Argentina and...
Bretesuchus Temporal range: Late Paleocene (Itaboraian-Riochican) ~58.7–55.8 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓ Scientific classification Domain: Eukaryota...
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