CACrown ArchivesThe cinema collection
Menu
Research dossier · Science & Nature

Colhuehuapian

South American land mammal age (SALMA)

Specimen drawers, botanical folios and brass scientific instruments under study light
Science and natureInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 13, 2026
Entity authorityQ5144799
Source-derived summary

The Colhuehuapian age is a period of geologic time (21.0–17.5 Ma) within the Early Miocene epoch of the Neogene, used more specifically within the SALMA classification in South America. It follows the Deseadan and precedes the Santacrucian age.

Etymology

The age is named after the Colhué Huapí Member of the Sarmiento Formation in the Golfo San Jorge Basin, Patagonia, Argentina.

Formations

Fossils

References

Bibliography

Colhué Huapí Member

Arnal, Michelle; Kramarz, Alejandro G.; Vucetich, M. Guiomar; Vieytes, E. Carolina (2014), "A new early Miocene octodontoid rodent (Hystricognathi, Caviomorpha) from Patagonia (Argentina) and a reassessment of the early evolution of Octodontoidea", Journal of Vertebrate Paleontology, 34 (2): 397–406, Bibcode:2014JVPal..34..397A, doi:10.1080/02724634.2013.808203, hdl:11336/29748, retrieved 2019-02-12

Cheme Arriaga, Lucas; Dozo, María Teresa; Gelfo, Javier N. (2016), "A new Cramaucheniinae (Litopterna, Macraucheniidae) from the early Miocene of Patagonia, Argentina", Journal of Vertebrate Paleontology, 36 (6) e1229672, Bibcode:2016JVPal..36E9672C, doi:10.1080/02724634.2017.1229672, hdl:11336/30386, retrieved 2019-02-12

Abanico Formation

Bertrand, Ornella C.; Flynn, John J.; Croft, Darin A.; Wyss, André R. (2012), "Two new taxa (Caviomorpha, Rodentia) from the early Oligocene Tinguiririca fauna (Chile)", American Museum Novitates (3750): 1–36, doi:10.1206/3750.2, retrieved 2019-02-15

Bradham, Jennifer; Flynn, John J.; Croft, Darin A.; Wyss, Andre R. (2015), "New notoungulates (Notostylopidae and basal toxodontians) from the early Oligocene Tinguiririca fauna of the Andean Main Range, central Chile", American Museum Novitates (3841): 1–24, doi:10.1206/3841.1, retrieved 2019-02-13

Croft, Darin A.; Flynn, John J.; Wyss, André R. (2008), "The Tinguiririca fauna of Chile and the early stages of "modernization" of South American mammal faunas" (PDF), Arquivos do Museu Nacional, Rio de Janeiro, 66: 191–211, archived from the original (PDF) on 2018-09-06, retrieved 2019-02-12 Archived 2018-09-06 at the Wayback Machine

Engelman, Russell K.; Flynn, John J.; Gans, Philip; Wyss, André R.; Croft, Darin A. (2018), "Chlorocyon phantasma, a late Eocene borhyaenoid (Mammalia, Metatheria, Sparassodonta) from the Los Helados locality, Andean Main Range, central Chile", American Museum Novitates (3918): 1–22, doi:10.1206/3918.1, retrieved 2019-02-11

Godoy, Estanislao (2012), "Sobre el variable marco geotectónico de las formaciones Abanico y Farellones y sus equivalentes al sur de los 35°LS", Revista de la Asociación Geológica Argentina, 69: 570–577, retrieved 2017-08-15

Muñoz, Marcia; Fuentes, Francisco; Vergara, Mario; Aguirre, Luis; Nyström, Jan Olov; Féraud, Gilbert; Demant, Alain (2006), "Abanico East Formation: petrology and geochemistry of volcanic rocks behind the Cenozoic arc front in the Andean Cordillera, central Chile (33°50'S)", Revista Geológica de Chile, 33: 109–140, doi:10.4067/S0716-02082006000100005, hdl:10533/177368, retrieved 2017-08-15

Biblián Formation

Veintimilla González, Liliana Alexandra (2015), Solución geológica, geotécnica, hidrológica, hidráulica y estructural de la alcantarilla que sirve a la autopista Cuenca-Azogues, Abscisa km. 4+667 (thesis) (PDF), Universidad de Cuenca, pp. 1–111, retrieved 2018-09-11

Castillo Formation

Johnson, Kenneth G.; Sánchez Villagra, Marcelo R.; Aguilera, Órangel A. (2009), "The Oligocene-Miocene transition on coral reefs in the Falcón Basin (NW Venezuela)", PALAIOS, 24 (1): 59–69, Bibcode:2009Palai..24...59J, doi:10.2110/palo.2008.p08-004r

Rincón, Ascanio D.; Solórzano, Andrés; McDonald, H. Gregory; Núñez Flores, Mónica (2017), "Baraguatherium takumara, gen. et sp. nov., the earliest mylodontoid sloth (early Miocene) from northern South America", Journal of Mammalian Evolution, 24 (2): 179–191, doi:10.1007/s10914-016-9328-y, retrieved 2019-02-12

Rincón, Ascanio D.; Solórzano, Andrés; Benammi, Mouloud; Vignaud, Patrick; McDonald, H. Gregory (2014), "Chronology and geology of an Early Miocene mammalian assemblage in North of South America, from Cerro La Cruz (Castillo Formation), Lara State, Venezuela: implications in the 'changing course of Orinoco River' hypothesis" (PDF), Andean Geology, 41: 507–528, retrieved 2018-09-07

Solórzano, Andrés; Rincón, Ascanio D.; Cidade, Giovanne M.; Núñez Flores, Mónica; Sánchez, Leonardo (2018), "Lower Miocene alligatoroids (Crocodylia) from the Castillo Formation, northwest of Venezuela" (PDF), Palaeobiodiversity and Palaeoenvironments, 99 (2): 1–19, Bibcode:2019PdPe...99..241S, doi:10.1007/s12549-018-0332-5, retrieved 2018-09-07

Urbani, Franco; Mendi, David (2010), "Notas sobre la discordancia del margen sur de la cuenca Oligo-Miocena de Falcón estados Lara, Falcón y Yaracuy, Venezuela", Boletín de la Academia de Ciencias Físicas, Matemáticas y Naturales, LXX: 9–25, retrieved 2017-08-15

Cerro Bandera Formation

Kramarz, Alejandro G.; Bond, Mariano; Arnal, Michelle (2015), "Systematic description of three new mammals (Notoungulata and Rodentia) from the early Miocene Cerro Bandera Formation, northern Patagonia, Argentina", Ameghiniana, 52 (6): 585–597, Bibcode:2015Amegh..52..585K, doi:10.5710/AMGH.27.06.2015.2906, hdl:11336/47331, retrieved 2019-02-13

Kramarz, Alejandro; Garrido, Alberto; Forasiepi, Analía; Bond, Mariano; Tambussi, Claudia (2005), "Estratigrafia y vertebrados (Aves y Mammalia) de la Formación Cerro Bandera, Mioceno Temprano de la Provincia del Neuquén, Argentina", Revista Geológica de Chile, 32 (2): 273–291, doi:10.4067/S0716-02082005000200006, retrieved 2017-10-20

Chichinales Formation

Agnolin, Federico L.; Chafrat, Pablo (2015), "New fossil bird remains from the Chichinales Formation (Early Miocene) of northern Patagonia, Argentina", Annales de Paléontologie, 101 (2): 87–94, Bibcode:2015AnPal.101...87A, doi:10.1016/j.annpal.2015.02.001, retrieved 2019-02-13

Kramarz, Alejandro Gustavo; Paz, Ernesto Rodrigo (2013), "Un Hegetotheriidae (Mammalia, Notoungulata) basal del Mioceno temprano de Patagonia" (PDF), Revista Mexicana de Ciencias Geológicas, 30: 186–195, retrieved 2017-10-20

Chilcatay Formation

Bianucci, Giovanni; de Muizon, C.; Urbina, M.; Lambert, O. (2020), "Extensive diversity and disparity of the early Miocene platanistoids (Cetacea, Odontoceti) in the Southeastern Pacific (Chilcatay Formation, Peru)", Life, 10 (3): 1–62, Bibcode:2020Life...10...27B, doi:10.3390/life10030027, hdl:11568/1047231, PMC 7151620, PMID 32197480

Landini, W.; Collareta, A.; Di Celma, C.; Malinverno, E.; Urbina, M.; Bianucci, G. (2019), "The early Miocene elasmobranch assemblage from Zamaca (Chilcatay T Formation, Peru)", Journal of South American Earth Sciences, 91: 352–371, Bibcode:2019JSAES..91..352L, doi:10.1016/j.jsames.2018.08.004

Bianucci, Giovanni; Bosio, Giulia; Malinverno, Elisa; De Muizon, Christian; Villa, Igor M.; Urbina, Mario; Lambert, Olivier (2018), "A new large squalodelphinid (Cetacea, Odontoceti) from Peru sheds light on the Early Miocene platanistoid disparity and ecology", Royal Society Open Science, 5 (4) 172302, Bibcode:2018RSOS....572302B, doi:10.1098/rsos.172302, PMC 5936943, PMID 29765678

De la Cruz, Aldo Alván (2008), "Geología de Ocucaje: aportes en la sedimentología y paleontología de Lomas de Ullujaya (Ica, Perú)" (PDF), Revista del Instituto de Investigaciones FIGMMG, 11: 51–59, retrieved 2017-08-15

Lambert, Olivier; De Muizon, Christian; Malinverno, Elisa; Di Celma, Claudio; Urbina, Mario; Bianucci, Giovanni (2017), "A new odontocete (toothed cetacean) from the Early Miocene of Peru expands the morphological disparity of extinct heterodont dolphins", Journal of Systematic Palaeontology, 16 (12): 981–1016, doi:10.1080/14772019.2017.1359689, hdl:11568/891482, retrieved 2019-02-12

Lambert, Olivier; Bianucci, Giovanni; Urbina, Mario (2014), "Huaridelphis raimondii, a new early Miocene Squalodelphinidae (Cetacea, Odontoceti) from the Chilcatay Formation, Peru", Journal of Vertebrate Paleontology, 34 (5): 987–1004, Bibcode:2014JVPal..34..987L, doi:10.1080/02724634.2014.858050, retrieved 2019-02-12

Varas Malca, R. M.; Altamirano Sierra, A. J.; DeVries, T.; Urbino, M. (2011), "The earliest known pinniped from the Southern Hemisphere", Ameghiniana, 48: R217

Acosta Hospitaleche, C.; Stucchi, M. (2005), "Nuevos restos terciarios de Spheniscidae (Aves, sphenisciformes) procedentes de la Costa del Peru", Revista Española de Paleontología, 20: 1–5

Alván, A.; Apolín, J.; Chacaltana, C. (2004), Los dientes de Seláceos (Condrichthyies) y su aplicaión estratigráfica en Las Lomas de Ullujaya (Ica, Perú), XIII Congreso Peruano de Geología. Resúmenes Extendidos, pp. 595–598

Colbert, E. H (1944), "A new fossil whale from the Miocene of Peru", Bulletin of the American Museum of Natural History, 83: 199–216

Cura-Mallín Group

Flynn, John J.; Charrier, Reynaldo; Croft, Darin A.; Gans, Phillip B.; Herriott, Trystan M.; Wertheim, Jill A.; Wyss, André R. (2008), "Chronologic implications of new Miocene mammals from the Cura-Mallín and Trapa Trapa formations, Laguna del Laja area, south central Chile" (PDF), Journal of South American Earth Sciences, 26 (4): 412–423, Bibcode:2008JSAES..26..412F, doi:10.1016/j.jsames.2008.05.006, retrieved 2017-10-20

Shockey, Bruce J.; Flynn, John J.; Croft, Darin A.; Gans, Phillip; Wyss, André R. (2012), "New leontiniid Notoungulata (Mammalia) from Chile and Argentina: comparative anatomy, character analysis, and phylogenetic hypotheses", American Museum Novitates (3737): 1–64, doi:10.1206/3737.2, retrieved 2019-02-15

Utgé, Silvana; Folguera, Andrés; Litvak, Vanesa; Ramos, Víctor A. (2009), "Geología del sector norte de la Cuenca de Cura Mallín en las Lagunas de Epulaufquen, Neuquén", Revista de la Asociación Geológica Argentina, 64 (2): 231–248, retrieved 2017-10-01

Gaiman Formation

Acosta Hospitaleche, Carolina (2007), "Revisión sistemática de Palaeospheniscus biloculata (Simpson) nov.

Editorial summary

Begin with the source’s own compact description: “Colhuehuapian” is south American land mammal age (SALMA). The dossier treats that line as a proposition to test through Colhuehuapian, South and American, not as a finished interpretation.

Editorial reviewA sound reference starting point where classification, measurement and the date of the underlying evidence remain visible. The current lead gives the account dated anchors—2014, 1080, 2013, 2019—that can be checked directly. The selected authority fields contribute no independent date. For this dossier, Colhuehuapian, South and American is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “south American land mammal age (SALMA)” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.

Evidence profile

Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Sep 13, 2026. The linked authority identifier is Q5144799. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2014, 1080, 2013 and 2019.

Critical limits

Scientific names, classifications and consensus can change while older terminology persists in catalogues and historical literature. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Check terminology, classification and the date of the cited evidence. Scientific names and technical consensus can change while older records retain historical value.

Best used for
  • Current terminology
  • Classification context
  • Finding cited technical literature
Verify next

Primary datasets, specimen catalogues, standards bodies and the most recent peer-reviewed literature.

Three-step research path

  1. Establish the record: confirm the title “Colhuehuapian”, its source revision and the description used here.
  2. Expand the search: follow Colhuehuapian primary sources, Colhuehuapian archive and Colhuehuapian research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Colhuehuapian”?
  2. Has classification or technical consensus changed since the cited source?
  3. Is the terminology current, historical or disputed?
Subject index

Search terms from this dossier

Source & attribution

This entry incorporates text from Colhuehuapian” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.