Las Flores: Ypresian, Argentina

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Dipnoi - Ceratodontidae
Cione et al. 2011
MLP 90-II-5-990, a fragmentary upper tooth plate preserving the greater part of the first ridge and the whole second ridge. The biological wear was normal, and the material does not show any evidence of significant post-mortem abrasion.
Mammalia
Oliveira and Goin 2011
Mammalia - Sparassodonta
Woodburne et al. 2014
Mammalia - Derorhynchidae
Woodburne et al. 2014
Woodburne et al. 2014
Derorhynchus sp. Couto 1952
Oliveira and Goin 2011
Mammalia - Didelphimorphia
Woodburne et al. 2014
Mammalia - Sternbergiidae
Carolopaulacoutoia sp. McKenna and Bell 1997
Oliveira and Goin 2011
Oliveira and Goin 2011
Mammalia - Protodidelphidae
Oliveira and Goin 2011
MLP 90-II-5-56
Oliveira and Goin 2011
Mammalia - Peradectidae
Woodburne et al. 2014
Woodburne et al. 2014
Mammalia
Oliveira and Goin 2011
Described and figured by Goin et al. (1998)
Oliveira and Goin 2011
Mammalia - Microbiotheria - Microbiotheriidae
Oliveira and Goin 2011
Mammalia - Microbiotheria - Woodburnodontidae
Woodburne et al. 2014
Mammalia
Oliveira and Goin 2011
Mammalia - Paucituberculata
MLP 90-II-5-336, an isolated upper molar (M?2; Fig. 2C, D) lacking the metastylar area; MLP 90-II-5-335, an isolated left protocone; MLP 90-II-5-337, an isolated right protocone; MLP 90-II-5-300 (Fig. 2E, F), an isolated right talonid.
Mammalia - Polydolopidae
Woodburne et al. 2014
Woodburne et al. 2014
Mammalia
Bobbschaefferia sp. Paula Couto 1970
Oliveira and Goin 2011
Mammalia - Bonapartheriidae
Oliveira and Goin 2011
Mammalia - Astrapotheria - Trigonostylopidae
Woodburne et al. 2014
Woodburne et al. 2014
Mammalia - Notoungulata - Oldfieldthomasiidae
Oliveira and Goin 2011
Itaboraitherium sp. Paula Couto 1970
Oliveira and Goin 2011
Carmargomendesia sp. Paulo Couto 1978
Oliveira and Goin 2011
    = Camargomendesia sp. Paulo Couto 1978
Woodburne et al. 2014
Woodburne et al. 2014
Mammalia - Notoungulata - Isotemnidae
Woodburne et al. 2014
Mammalia - Notoungulata - Henricosborniidae
Woodburne et al. 2014
Oliveira and Goin 2011
Bauzá et al. 2019
Mammalia - Notoungulata
Reguero and Prevosti 2010
Mammalia - Panameriungulata - Macraucheniidae
MLP 90-II-5-336 (an isolated upper molar M?2; lacking the metastylar area), MLP 90-II-5-335 (an isolated left protocone), MLP 90-II-5-337 (an isolated right protocone) and MLP 90-II-5-300 (an isolated right talonid)
Mammalia - Panameriungulata - Proterotheriidae
Woodburne et al. 2014
Mammalia - Panameriungulata - Protolipternidae
Oliveira and Goin 2011
Mammalia - Panameriungulata - Didolodontidae
Oliveira and Goin 2011
Amphibia - Temnospondyli - Calyptocephalellidae
Agnolin 2012
see common names

Geography
Country:Argentina State/province:Chubut
Coordinates: 45.6° South, 69.1° West (view map)
Paleocoordinates:47.1° South, 59.3° West (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period: Paleogene Epoch: Eocene
Stage: Ypresian 10 m.y. bin: Cenozoic 2
Key time interval: Ypresian Mammal zone:  Itaboraian
Age range of interval: 56 - 48.07 m.y. ago
Stratigraphy
Geological group:Río Chico Formation:Las Flores
Stratigraphic resolution:group of beds
Stratigraphy comments: Originally correlated with Banco Negro Inferior levels (Marshall et al., 1981), the Las Flores Formation (Legarreta & Uliana, 1994) was later referred to the Río Chico Group (Legarreta & Uliana, 1994) and to the Kibenikhoria faunal zone (Bond et al., 1995).

Lithology and environment
Primary lithology: not reported
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Metadata
Also known as:Southern Cliff of Colhué Huapi lake; Yacimiento Las Flores
Database number:133040
Authorizer:P. Mannion, J. Zijlstra Enterer:P. Mannion, J. Zijlstra, G. Varnham
Modifier:M. Kouvari Research group:vertebrate
Created:2012-08-31 19:56:58 Last modified:2025-02-22 15:12:02
Access level:the public Released:2012-08-31 19:56:58
Creative Commons license:CC0
Reference information

Primary reference:
42837. F. J. Goin, A. M. Candela, M. A. Abello and E. V. Oliveira. 2009. Earliest South American paucituberculatans and their significance in the understanding of ‘pseudodiprotodont’ marsupial radiations. Zoological Journal of the Linnean Society 155:867-884 [P. Mannion/P. Mannion]

Secondary references:

73340 F. Agnolin. 2012. A new Calyptocephalellidae (Anura, Neobatrachia) from the Upper Cretaceous of Patagonia, Argentina, with comments on its systematic position. Studia Geologica Salmanticensia 48(2):129-178 [P. Mannion/P. Mannion]
69628 N. Bauzá, J. N. Gelfo, and G. M. López. 2019. Early steps in the radiation of notoungulate mammals in southern South America: A new henricosborniid from the Eocene of Patagonia. Acta Palaeontologica Polonica 64(3):597-603 [P. Mannion/G. Varnham/P. Mannion]
57763 A. L. Cione, S. Gouiric-Cavalli, J. N. Gelfo and F. J. Goin. 2011. The youngest non-lepidosirenid lungfish of South America (Dipnoi, latest Paleocene–earliest Eocene, Argentina). Alcheringa 35:193-198 [J. Zijlstra/J. Zijlstra]
42973 E. V. Oliveira and F. J. Goin. 2011. A reassessment of bunodont metatherians from the Paleogene of Itaborai (Brazil): Systematics and the age of the Itaborian SALMA. Revista Brasileira de Paleontologia 14(2):105-136 [P. Mannion/P. Mannion]
58079 M. A. Reguero and F. J. Prevosti. 2010. Rodent-like notoungulates (Typotheria) from Gran Barranca, Chubut Province, Argentina: phylogeny and systematics. In R. H. Madden, A. A. Carlini, M. G. Vucetich, R. F. Kay (eds.), The Paleontology of Gran Barranca: Evolution and Environmental Change through the Middle Cenozoic of Patagonia 148-165 [J. Zijlstra/J. Zijlstra]
57841 M. O. Woodburne, F. J. Goin, M. S. Raigemborn, M. Heizler, J. N. Gelfo and E. V. Oliveira. 2014. Revised timing of the South American early Paleogene land mammal ages. Journal of South American Earth Sciences 54:109-119 [J. Zijlstra/J. Zijlstra]