Estancia Ana María, Pinturas Fm., Lago Buenos Aires: Burdigalian, Argentina
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Paucituberculata
- Palaeothentidae
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Palaeothentes minutus
Ameghino 1887
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Bown and Fleagle 1993 | |||||||||
| MACN SC numbers 734, 735 | ||||||||||
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Acdestis oweni
Ameghino 1887
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Bown and Fleagle 1993 | |||||||||
| MACN SC numbers 3189, 3190 | ||||||||||
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Mammalia
- Panameriungulata
- Proterotheriidae
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Tetramerorhinus fleaglei
Kramarz and Bond 2005
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Kramarz and Bond 2005 | |||||||||
| 4 specimens | ||||||||||
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Tetramerorhinus prosistens
(Ameghino 1899)
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Kramarz and Bond 2005 | |||||||||
| 2 specimens | ||||||||||
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Picturotherium migueli n. gen., n. sp.
Kramarz and Bond 2005
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Kramarz and Bond 2005 | |||||||||
| holotype plus 1 specimen | ||||||||||
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Mammalia
- Rodentia
- Neoepiblemidae
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Perimys intermedius
Kramarz 2002
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Kramarz 2002 | |||||||||
| 28 specimens | ||||||||||
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Mammalia
- Rodentia
- Dinomyidae
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Scleromys quadrangulatus
Kramarz 2006
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Kramarz 2006 | |||||||||
| 4 specimens | ||||||||||
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Scleromys osbornianus
Ameghino 1894
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Kramarz 2006 | |||||||||
| 1 specimen | ||||||||||
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Mammalia
- Rodentia
- Erethizontidae
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Branisamyopsis praesigmoides
Kramarz 2004
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Kramarz 2004 | |||||||||
| 3 specimens | ||||||||||
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Mammalia
- Rodentia
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Eosteiromys annectens
(Ameghino 1901)
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Kramarz 2004 | |||||||||
| 9 specimens | ||||||||||
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Steiromys duplicatus
Ameghino 1887
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Kramarz 2004 | |||||||||
| 3 specimens | ||||||||||
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Steiromys principalis
Ameghino 1901
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Kramarz 2004 | |||||||||
| 1 specimen | ||||||||||
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Neoreomys australis
Ameghino 1887
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Kramarz 2006 | |||||||||
| 2 specimens | ||||||||||
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Luantus toldensis
Kramarz 2006
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Kramarz 2006 | |||||||||
| 1 specimen | ||||||||||
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Luantus propheticus
Ameghino 1899
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Kramarz 2006 | |||||||||
| 2 specimens | ||||||||||
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Stichomys sp.
Ameghino 1887
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Kramarz 2004 | |||||||||
| 1 specimen | ||||||||||
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Spaniomys modestus
Ameghino 1887
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Kramarz 2004 | |||||||||
| 2 specimens | ||||||||||
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Mammalia
- Rodentia
- Acaremyidae
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Galileomys eurygnathus
Kramarz 2004
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Kramarz 2004 | |||||||||
| 2 specimens | ||||||||||
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Mammalia
- Rodentia
- Echimyidae
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Prostichomys bowni
Kramarz 2001
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Kramarz 2004 | |||||||||
| 24 specimens | ||||||||||
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Mammalia
- Primates
- Pitheciidae
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Pitheciidae indet.
Mivart 1865
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Novo et al. 2021 | |||||||||
| MPM PV 17418 | ||||||||||
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Mammalia
- Primates
- Homunculidae
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Soriacebus adrianae
Fleagle 1990
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Novo et al. 2021 | |||||||||
| MPM PV 17419 | ||||||||||
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Mammalia
- Primates
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Carlocebus cf. carmenensis
Fleagle 1990
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Meldrum 1990 | |||||||||
| 1 specimen | ||||||||||
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Carlocebus carmenensis
Fleagle 1990
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Novo et al. 2021 | |||||||||
| MPM PV 17417 and MPM PV 17416 | ||||||||||
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Mammalia
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Megatherioidea indet.
Gray 1821
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Brandoni et al. 2016 | |||||||||
| MPM-PV 17407 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Argentina | State/province: | Santa Cruz | County: | Lago Buenos Aires |
| Coordinates: | 47.0° South, 70.7° West (view map) | ||||
| Paleocoordinates: | 47.7° South, 65.0° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Neogene | Epoch: | Miocene |
| Stage: | Burdigalian | 10 m.y. bin: | Cenozoic 5 |
| Key time interval: | Burdigalian | Zone: | Pinturan |
| Age range of interval: | 20.44000 - 15.98000 m.y. ago | ||
| Age estimate: | 18 to 16 Ma (unknown) |
Stratigraphy
| Formation: | Pinturas | ||||
| Stratigraphy comments: Pertains to "Middle Sequence" = "Pinturan" of Kramarz & Bellosi 2005
Brandoni et al 2016: fossils come from the middle sequence that crops at the base of a pointed hill Brandoni et al 2016: The absolute ages of ca. 17.99 Ma near the base of the Pinturas Formation at Estancia el Carmen (47? 120 44.6400S, 70? 340 9700W), and ca. 16.8 Ma in the Santa Cruz For- mation that overlies the Pinturas Formation at Portezuelo Sumich Norte (see Perkins et al. 2012 and Fleagle et al. 2012) (Fig. 1b) indicate that the lower and middle sequences from the Pinturas Formation would be similar in age to those from the coastal localities of the Santa Cruz Formation (‘‘typical Santacrucian fauna’’) with ages of ca. 18–16 Ma (Bown and Fleagle 1993; Fleagle et al. 1995; Tejedor et al. 2006; Perkins et al. 2012), and younger than those from the lower Fossil Zone of the Colhue-Huapi Member of the Sarmiento Formation (‘‘Colhuehuapian fauna’’) (Kramarz et al. 2010) with ages of ca. 20.4–20.0 Ma (Re´ et al. 2010) or 21.11–18.62 Ma (Dunn et al. 2013) (Fig. 2). |
Lithology and environment
| Primary lithology: | "volcaniclastic" |
| Lithology description: Brandoni et al 2016: The Pinturas Formation is composed of up to 100 m of Miocene continental pyroclastic and eolian epiclastic sed-iments outcropping in the upper valley of the Pinturas River and its tributaries (Fig. 1a). It lies unconformably atop the Jurassic La Matilde Formation (Bahı´a Laura River and its tributaries (Fig. 1a). It lies unconformably atop the Jurassic La Matilde Formation (Bahı´a Laura Group), and is divided by two intraformational erosional unconformities into three sequences: (a) the lower sequence, dominated by pyroclastic mudrocks upon which very mature paleosols were formed; (b) the middle sequence, composed largely by epiclastic sand occurring as barchanoid paleodunes; and (c) the upper sequence, con-sisting of massive, poorly bedded pyroclastic mudrocks (Bown et al. 1988; Bown and Larriestra 1990). The Pin-turas Formation differs from the Santa Cruz Formation in the greater volume of pyroclastic materials, absence of marine intercalations, and the presence of mature paleosols in the lower sequence (Bown and Larriestra 1990). | |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Associated major elements: | some |
| Disassociated major elements: | some |
| Disassociated minor elements: | some |
| Temporal resolution: | time-averaged |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | MACN |
Metadata
| Also known as: | Loma de las Ranas | ||
| Database number: | 59133 | ||
| Authorizer: | D. Croft, C. Jaramillo, P. Mannion | Enterer: | D. Croft, G. Varnham, J. Carrillo, P. Mannion, M. Kouvari |
| Modifier: | M. Kouvari | Research group: | vertebrate |
| Created: | 2006-03-15 13:03:35 | Last modified: | 2020-11-30 10:26:41 |
| Access level: | the public | Released: | 2006-03-15 13:03:35 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 16881. | T. M. Bown and C. N. Larriestra. 1990. Sedimentary paleoenvironments of fossil platyrrhine localities, Miocene Pinturas Formation, Santa Cruz Province, Argentina. Journal of Human Evolution 19(1-2):87-119 [D. Croft/D. Croft] |
Secondary references:
| 73037 | T. M. Bown and J. G. Fleagle. 1993. Systematics, Biostratigraphy, and Dental Evolution of the Palaeothentidae, Later Oligocene to Early-Middle Miocene (Deseadan-Santacrucian) Caenolestoid Marsupials of South America. Memoir (The Paleontological Society) 29:1-76 [P. Mannion/G. Varnham] | |
| 70242 | D. Brandoni, L. Gonzalez-Ruiz, M. F. Tejedon, G. Martin, and J. G. Fleagle. 2016. Megatherioidea (Mammalia, Xenarthra, Tardigrada) from the Pinturas Formation (Early Miocene), Santa Cruz Province (Argentina) and their chronological implications. Paläontologische Zeitschrift 90:619-628 [P. Mannion/M. Kouvari] | |
| 47126 | A. Kramarz. 2006. Neoreomys and Scleromys (Rodentia, Hystricognathi) from the Pinturas Formation, late Early Miocene of Patagonia, Argentina. Revista del Museo Argentina de Ciencias Naturales n.s 8(1):53-62 [C. Jaramillo/J. Carrillo] | |
| 16992 | A. G. Kramarz. 2002. Roedores chinchilloideos (Hystricognathi) de la Formación Pinturas, Mioceno temprano-medio de la provincia de Santa Cruz, Argentina. Revista del Museo Argentino de Ciencias Naturales, n.s. 4(2):167-180 [D. Croft/D. Croft] | |
| 16990 | A. G. Kramarz. 2004. Octodontoids and erethizontoids (Rodentia, Hystricognathi) from the Pinturas Formation, Early-Middle Miocene of Patagonia, Argentina. Ameghiniana 41(2):199-216 [D. Croft/D. Croft] | |
| 46083 | A. G. Kramarz. 2006. Eocardiids (Rodentia, Hystricognathi) from the Pinturas Formation, Late early Miocene of Patagonia, Argentina. Journal of Vertebrate Paleontology 26(3):770-778 [C. Jaramillo/J. Carrillo] | |
| 16665 | A. G. Kramarz and M. Bond. 2005. Los Litopterna (Mammalia) de la Formación Pinturas, Mioceno temprano-medio de Patagonia. Ameghiniana 42(3):611-626 [D. Croft/D. Croft] | |
| 47138 | D. J. Meldrum. 1990. New Fossil Platyrrhine Tali from the Early Miocene of Argentina. American Journal of Physical Anthropology 83(4):403-418 [C. Jaramillo/J. Carrillo] | |
| 86053 | N. M. Novo, M. F. Tejedor, L. R. González-Ruiz, J. G. Fleagle, D. Brandoni and M. Krause. 2021. Primate diversity in the early Miocene Pinturas Formation, southern Patagonia, Argentina. Anais da Academia Brasileira de Ciências 93(2):e20201218 [P. Mannion/P. Mannion] |