El Guanaco: Messinian, Argentina
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Cingulata
- Dasypodidae
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Doellotatus inornatus
(Rovereto 1914)
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Urrutia et al. 2008 | |||||||||
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Chasicotatus ameghinoi
Scillato-Yané 1977
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Urrutia et al. 2008 | |||||||||
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Chorobates villosissimus
Reig 1958
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Urrutia et al. 2008 | |||||||||
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Chorobates cf. villosissimus
Reig 1958
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Urrutia et al. 2008 | |||||||||
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Macrochorobates chapadmalensis
Ameghino 1908
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Urrutia et al. 2008 | |||||||||
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Mammalia
- Notoungulata
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Paedotherium minor
Cabrera 1937
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Sostillo et al. 2021 | |||||||||
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Mammalia
- Panameriungulata
- Proterotheriidae
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Eoauchenia primitiva
Ameghino 1887
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Schmidt et al. 2018 | |||||||||
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Mammalia
- Rodentia
- Ctenomyidae
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Xenodontomys simpsoni
Kraglievich 1961
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Verzi et al. 1991 | |||||||||
| GHUNLPam 342 (see also ref 65013) | ||||||||||
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Mammalia
- Rodentia
- Chinchillidae
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Lagostomus telenkechanum
Rasia and Candela 2017
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Montalvo et al. 2023 | |||||||||
| GHUNLPam 131 right mandible with i and p4-3, left with m3, and isolated I, GHUNLPam 22657 palate with left P4-M3 and right broken P4-M2. | ||||||||||
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Lagostomus pretrichodactyla
(Rovereto 1914)
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Montalvo et al. 2023 | |||||||||
| GHUNLPam 12958 right mandible with p4-m3, GHUNLPam 14854 palate with left P4-M2 and right M1-3. | ||||||||||
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Mammalia
- Rodentia
- Cricetidae
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Sigmodontinae indet.
Wagner 1843
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Romano et al. 2023 | |||||||||
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Mammalia
- Didelphimorphia
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Hyperdidelphys pattersoni
Reig 1952
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Goin et al. 2000 | |||||||||
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Thylatheridium dolgopolae
Reig 1952
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| (5 measurements) | ||||||||||
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Hesperocynus dogolpolae
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Romano et al. 2023 | |||||||||
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Mammalia
- Argyrolagidae
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Microtragulus rusconii
Goin et al. 2000
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Goin et al. 2000 | |||||||||
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Mammalia
- Sparassodonta
- Thylacosmilidae
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Thylacosmilus atrox
Riggs 1933
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Romano et al. 2023 | |||||||||
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Achlysictis cf. lelongi
Ameghino 1891
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Goin et al. 2000 | |||||||||
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Reptilia
- Theropoda
- Tinamidae
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Nothura sp.
Wagler 1827
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Cenizo et al. 2012 | |||||||||
| GHUNLPam 14861/1, distal portion of left tibiotarsus | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Argentina | State/province: | La Pampa |
| Coordinates: | 37.7° South, 63.5° West (view map) | ||
| Paleocoordinates: | 37.9° South, 61.8° West | ||
| Basis of coordinate: | estimated from map | ||
| Altitude: | 160 meters | ||
| Geographic resolution: | outcrop |
Time
| Period: | Neogene | Epoch: | Miocene |
| Stage: | Messinian | 10 m.y. bin: | Cenozoic 6 |
| Key time interval: | Messinian | ||
| Age range of interval: | 7.246 - 5.333 m.y. ago | ||
| Age estimate: | 6.187 to 5.154 Ma (other) |
Stratigraphy
| Formation: | Cerro Azul | ||||
| Stratigraphic resolution: | formation | ||||
| Stratigraphy comments: Schmidt et al. 2018: Figure 2 illustrates the stratigraphic distribution of the locality giving a general age estimate of 5.4-6.1Ma
Prevosti et al. 2023: Biochronological methods were useful in ordering and estimating the age of the different faunas of the Cerro Azul Formation, ranging from ca. 8 to ca. 5.7 Ma. Some appear to be transitional between Chasicoan and “Huayquerian” faunas (Cerro La Bota, Cerro Patagua, and Algarrobo del Águila), and other three (Barrancas Coloradas, El Guanaco, and Caleufú) cover the latest Miocene, even some of them could have reached the earliest Pliocene. | |||||
Lithology and environment
| Primary lithology: | brown lithified siltstone |
| Environment: | loess |
| Geology comments: Deposits at Telen, Bajo Giuliani, El Guanaco and Caleufú were interpreted as loess-like deposits with immature palaeosols and little diagenetic alteration (Montalvo et al., 2008, 2016; Verzi et al., 2008). | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | MLP |
Metadata
| Database number: | 140932 | ||
| Authorizer: | C. Jaramillo, J. Carrillo, P. Mannion | Enterer: | J. Carrillo, K. Pino, M. Kouvari, G. Varnham |
| Modifier: | K. Pino | Research group: | vertebrate |
| Created: | 2013-03-19 08:25:17 | Last modified: | 2023-08-15 03:56:59 |
| Access level: | database members | Released: | 2014-03-19 08:25:17 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 45748. | F. J. Goin and C. Montalvo. 1988. Revisión sistemática y reconocimiento de una nueva especie del género Thylatheridium Reig (Marsupialia, Didelphidae). Ameghiniana 25(2):161-167 [C. Jaramillo/J. Carrillo] |
Secondary references:
| 72948 | M. M. Cenizo, C. P. Tambussi, and C. I. Montalvo. 2012. Late Miocene continental birds from the Cerro Azul Formation in the Pampean region (central- southern Argentina). Alcheringa: An Australasian Journal of Palaeontology 36(1):47-68 [P. Mannion/G. Varnham] | |
| 48408 | F. J. Goin, C. I. Montalvo, and G. Visconti. 2000. Los marsupiales (Mammalia) del Mioceno Superior de la Formacion Cerro Azul(Provincia de La Pampa, Argentina). Estudios Geol 56:101-126 [C. Jaramillo/J. Carrillo/J. Carrillo] | |
| 85601 | C. I. Montalvo, R. Sostillo, and L. L. Rasia. 2023. New light on the late Middle Miocene–Early Pliocene representatives of Lagostomus (Chinchillidae, Rodentia) from Cerro Azul Formation, Argentina. Journal of South American Earth Sciences 128(104481) [J. Carrillo/K. Pino] | |
| 85650 | C. O. Romano, R. Bonini, S. Hemming, M. Cenizo, U. F. J. Pardiñas and F. J. Prevosti. 2023. Advances in the understanding of Neogene mammalian fauna in the Pampean region (central Argentina) through revising “biozone” hypotheses based on new dates and biochronological analyses. Ameghiniana 60(5):465-491 [J. Carrillo/K. Pino] | |
| 69166 | G. I. Schmidt, C. I. Montalvo, R. Sostillo and E. Cerdeño. 2018. Proterotheriidae (Mammalia, Litopterna) from the Cerro Azul Formation (late Miocene), La Pampa Province, Argentina. Journal of South American Earth Sciences 83:165-177 [P. Mannion/G. Varnham] | |
| 84590 | R. Sostillo, C. I. Montalvo, E. Cerdeño, G. I. Schmidt, A. Folguera and M. C. Cardonatto. 2021. Updated knowledge on the Notoungulata (Mammalia) from the late Miocene Cerro Azul Formation, La Pampa Province, Argentina. Historical Biology An International Journal of Paleobiology 33(8):1247-1265 [J. Carrillo/K. Pino] | |
| 70799 | J. J. Urrutia, C. I. Montalvo, and G. J. Scillato-Yane. 2008. Dasypodidae (Xenarthra, Cingulata) de la Formación Cerro Azul (Mioceno tardío) de la provincia de La Pampa, Argentina. Ameghiniana 45(2):289-302 [P. Mannion/M. Kouvari] | |
| 65013 | D. H. Verzi. 1999. The dental evidence on the differentiation of the ctenomyine rodents (Caviomorpha, Octodontidae, Ctenomyinae). Acta Theriologica 44(3):263-282 [C. Jaramillo/J. Carrillo] | |
| 71025 | D. H. Verzi, C. I. Montalvo, and M. G. Vucetich. 1991. Nuevos restos de Xenodontomys simpsoni Kraglievich y la sistematica de los mas antiguos Ctenomyinae (Rodentia, Octodontidae). Ameghiniana 28(3-4):325-331 [P. Mannion/M. Kouvari] |