Arroyo Chasicó: Chasicoan, Argentina
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Amphibia
- Temnospondyli
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Anura indet.
(Fischer von Waldheim 1813)
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Bondesio et al. 1980 | |||||||||
leg bone | ||||||||||
Reptilia
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Carlesia cf. pendolai
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Bondesio et al. 1980 | |||||||||
replaced by Dicarlesia | ||||||||||
one partial skeleton | ||||||||||
Reptilia
- Gruiformes
- Phorusrhacidae
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Psilopterus colzecus
Tonni and Tambussi 1988
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Bondesio et al. 1980 | |||||||||
Reptilia
- Testudines
- Testudinidae
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Chelonia indet.
(Latreille 1800)
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Bondesio et al. 1980 | |||||||||
osteoderms | ||||||||||
= Testudines indet.
Batsch 1788
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de Broin and de la Fuente 1993 | |||||||||
= Testudinidae indet.
Batsch 1788
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de la Fuente et al. 2018 | |||||||||
Mammalia
- Notoungulata
- Mesotheriidae
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Typotheriopsis sp.
Cabrera and Kraglievich 1930
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Bondesio et al. 1980 | |||||||||
nine specimens | ||||||||||
Typotheriopsis chasicoensis
Cabrera and Kraglievich 1931
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Cerdeno 2000 | |||||||||
MCNAM-PV 3211 - 5 | ||||||||||
Mammalia
- Notoungulata
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Paedotherium minor
Cabrera 1937
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Bondesio et al. 1980 | |||||||||
many specimens (30). Also ref. 71054: MCNAM-PV 3217 - 20 | ||||||||||
Hegetotheriinae indet.
Ameghino 1894
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Bondesio et al. 1980 | |||||||||
six specimens | ||||||||||
Hemihegetotherium torresi
Cabrera and Kraglievich 1931
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Cerdeno 2000 | |||||||||
MCNAM-PV 3216 | ||||||||||
Mammalia
- Notoungulata
- Interatheriidae
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Protypotherium distinctum
Cabrera and Kraglievich 1931
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Cabrera and Kraglievich 1931 | |||||||||
Holotype: MLP 12-2178, right maxilla | ||||||||||
Mammalia
- Notoungulata
- Homalodotheriidae
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Chasicotherium rothi n. gen., n. sp.
Cabrera and Kraglievich 1931
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De Ringuelet 1957 | |||||||||
The taxon is named in Cabrera and Kraglievich (1931; not seen). de Ringuelet adds more material. MLP 26-XI-20-1 (type) | ||||||||||
Mammalia
- Notoungulata
- Toxodontidae
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Pisanodon nazari
Cabrera and Kraglievich 1931
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Bondesio et al. 1980 | |||||||||
two specimens | ||||||||||
Mammalia
- Rodentia
- Chinchillidae
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Lagostominae indet.
Wiegmann 1832
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Bondesio et al. 1980 | |||||||||
three craniodental specimens | ||||||||||
Lagostomus telenkechanum n. sp.
Rasia and Candela 2017
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Rasia and Candela 2017 | |||||||||
Holotype MLP-Pv 60-VI-18-100 and other specimens | ||||||||||
Mammalia
- Rodentia
- Caviidae
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? Parodimys sp.
Kraglievich 1932
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Bondesio et al. 1980 | |||||||||
mandible | ||||||||||
Cardiomys sp.
Ameghino 1885
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Bondesio et al. 1980 | |||||||||
two craniodental specimens | ||||||||||
Cardiomys leufuensis n. sp.
Pérez et al. 2018
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Pérez et al. 2018 | |||||||||
MLP 55-IV-28-11 (type). Also, specimen MLP 29-IX-3-19 (semi-complete post cranial ref 70039) | ||||||||||
Orthomyctera sp.
Ameghino 1889
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Bondesio et al. 1980 | |||||||||
three specimens | ||||||||||
Procardiomys martinoi
Pascual 1961
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Pascual 1961 | |||||||||
Mammalia
- Rodentia
- Hydrochoeridae
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Cardiatheriinae indet.
Kraglievich 1930
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Bondesio et al. 1980 | |||||||||
invalid subgroup of Hydrochoeridae | ||||||||||
one tooth | ||||||||||
Procardiatherium sp.
Ameghino 1885
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Bondesio et al. 1980 | |||||||||
synonym of Cardiatherium | ||||||||||
three teeth | ||||||||||
Mammalia
- Rodentia
- Dinomyidae
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? Tetrastylus sp.
Ameghino 1886
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Bondesio et al. 1980 | |||||||||
a tooth | ||||||||||
Mammalia
- Panameriungulata
- Macraucheniidae
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Paranauchenia hystata
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Schmidt et al. 2022 | |||||||||
Cullinia levis
Cabrera and Kraglievich 1931
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Schmidt et al. 2022 | |||||||||
Mammalia
- Panameriungulata
- Proterotheriidae
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Proterotheriinae indet.
Ameghino 1885
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Bondesio et al. 1980 | |||||||||
partial limb bone | ||||||||||
Neobrachytherium ullumense
Soria 2001
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Schmidt et al. 2022 | |||||||||
Brachytherium sp.
Ameghino 1883
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Cerdeno 2000 | |||||||||
MCNAM-PV 3222 - 25 | ||||||||||
Mammalia
- Cingulata
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Epipeltephilus kanti n. sp.
Gonzalez-Ruiz et al. 2012
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Gonzalez-Ruiz et al. 2012 | |||||||||
Holotype: MLP 92-XI-19-7 and others. The type comes from the lower part of the Vivero member | ||||||||||
Mammalia
- Cingulata
- Pampatheriidae
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Kraglievichia sp.
Castellanos 1927
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Scillato-Yané 1977 | |||||||||
two osteoderms. M.L.P.: 55-N-28-84; 60-VI-18-68; CH lla(l). M.M'.P.: 265-M; ' 358-M (ref 27152 also) | ||||||||||
Mammalia
- Cingulata
- Glyptodontidae
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Plohophorini informal 1
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Bondesio et al. 1980 | |||||||||
one osteoderm and two osteoderms from the tail | ||||||||||
Plohophorini informal 2
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Bondesio et al. 1980 | |||||||||
one osteoderm from the tail | ||||||||||
Sclerocalyptini informal 1
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Bondesio et al. 1980 | |||||||||
synonym of Hoplophorini | ||||||||||
one osteoderm | ||||||||||
? Sclerocalyptini informal 2
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Bondesio et al. 1980 | |||||||||
synonym of Hoplophorini | ||||||||||
one osteoderm | ||||||||||
Mammalia
- Cingulata
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Palaehoplophorini informal 1
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Bondesio et al. 1980 | |||||||||
four osteoderms | ||||||||||
Palaehoplophorini informal 2
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Bondesio et al. 1980 | |||||||||
ten osteoderms | ||||||||||
Palaehoplophorini informal 3
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Bondesio et al. 1980 | |||||||||
five osteoderms | ||||||||||
Palaehoplophorini informal 4
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Bondesio et al. 1980 | |||||||||
two osteoderms | ||||||||||
Palaehoplophorini informal 5
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Bondesio et al. 1980 | |||||||||
one osteoderm | ||||||||||
Palaehoplophorini informal 6
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Bondesio et al. 1980 | |||||||||
one osteoderm | ||||||||||
Palaehoplophorini informal 7
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Bondesio et al. 1980 | |||||||||
one osteoderm | ||||||||||
? Palaehoplophorini informal 8
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Bondesio et al. 1980 | |||||||||
four osteoderms | ||||||||||
Palaehoplophorini informal 9
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Bondesio et al. 1980 | |||||||||
one osteoderm | ||||||||||
Mammalia
- Cingulata
- Dasypodidae
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Peltephilinae indet.
Lydekker 1894
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Scillato-Yané 1977 | |||||||||
MLP 28-X-11-88 | ||||||||||
Vetelia perforata n. sp.
Scillato-Yané 1977
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Scillato-Yané 1977 | |||||||||
seven specimens. Holotype: MLP 28-X-11-45 (also ref 27152) | ||||||||||
Proeuphractus sp.
Ameghino 1886
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Scillato-Yané 1977 | |||||||||
four specimens. M.L.P.: 28-X-1l-62; 28-X-11-67; 55-N-28-81a; 55-N-28-87a; 60-VI-18-77; 60-VI-18-78; CH 19; CH 35a; CH 36. M.M.P.: 264-M; 285-S. Also ref 71054: MCNAM-PV 3226, 7 | ||||||||||
Chasicotatus ameghinoi n. gen., n. sp.
Scillato-Yané 1977
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Scillato-Yané 1977 | |||||||||
eight specimens. Holotype: MLP CH 10 (also ref 27152) | ||||||||||
Mammalia
- Megatheriidae
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Plesiomegatherium halmyronomum n. sp.
Cabrera 1928
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Cabrera 1928 | |||||||||
the type. barranca derecha del arroyo chasico. cerca de la laguna del mismo nombre | ||||||||||
Anisodontherium n. gen. halmyronomum
(Cabrera 1928)
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Brandoni and De Iuliis 2007 | |||||||||
original and current combination Plesiomegatherium halmyronomum | ||||||||||
Holotype: MLP 26-IV-10-1 | ||||||||||
Mammalia
- Megalonychidae
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Protomegalonyx chasicoensis
Scillato-Yané 1977
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Brandoni 2009 | |||||||||
femur MMP M 478 | ||||||||||
Mammalia
- Sparassodonta
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Pseudolycopsis cabrerai
Marshall 1976
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Bondesio et al. 1980 | |||||||||
maxilla with three teeth | ||||||||||
Chasicostylus castroi n. gen., n. sp.
Reig 1957
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Marshall 1981 | 2 specimens | ||||||||
MLP 57-XI-9-2, maxilla and dentary, holotype; MLP 55-IV-28-59, right dentary with base of c and alveoli of p1-3, tentatively referred | ||||||||||
see common names |
Geography
Country: | Argentina | State/province: | Buenos Aires |
Coordinates: | 38.6° South, 63.0° West (view map) | ||
Paleocoordinates: | 38.8° South, 60.1° West | ||
Basis of coordinate: | estimated from map | ||
Altitude: | 10 meters | ||
Geographic resolution: | local area |
Time
Period: | Neogene | Epoch: | Miocene |
Stage: | Tortonian | 10 m.y. bin: | Cenozoic 6 |
Key time interval: | Chasicoan | ||
Age range of interval: | 9.90000 - 7.90000 m.y. ago | ||
Age estimate: | 9.43 to 8.7 Ma (paleomagnetic) |
Stratigraphy
Formation: | Arroyo Chasicó | ||||
Stratigraphic resolution: | formation | ||||
Stratigraphy comments: A recent interpretation of radiometric and paleomagnetic data of the ACF supports an age between at least 9.43 and 8.7 Ma (Zarate et al., 2007). |
Lithology and environment
Primary lithology: | "cross stratification",very fine sandstone |
Includes fossils? | Y |
Lithology description: an extensive plateau capped by a thick calcrete crust, which in turn is covered by a thin apron of late Pleistocene–Holocene eolian deposits. | |
Environment: | "floodplain" |
Geology comments: The beginning of Chasicoan sedimentation was placed after the general withdrawal of the mid-Miocene transgression (Pascual et al., 1996). According to Ramos (1999b), the transgression extended across most of eastern South America, covering the Pampas, Chaco region, and Patagonia up to the Andean foothill and reaching areas near the central and northern Andes of Argentina. The regional regression that followed was thought to be synchronous with the 10.5 Ma global sea level fall cited by Haq et al. (1987) (see Verzi, 1999, Pascual et al., 1996). |
Taphonomy
Modes of preservation: | body,permineralized |
Size of fossils: | macrofossils |
Collection methods and comments
Reason for describing collection: | biostratigraphic analysis |
Collection method comments: Gonzalez-Ruiz, et al. 2012: their Material was collected during a field trip organized by the Facultad de Ciencias Naturales y Museo de La Plata (Argentina) and Duke University (USA).
Cerdeno 2000: material from the Museo "J. C. Moyana" de Mendoza. Recolección efectuadas por J.R. Contreras, Mones-Aivarado y Ripa-Alvara- do entre 1967 y 1969, según figura en las etiqueta encontradas junto a los fósiles. | |
Taxonomic list comments:Rasia & Canela 2017: Arroyo Chasico area, southwest of Buenos Aires Province, Argentina, MLP-Pv 55-IV- 28-43 and MLP-Pv 55-IV-28-44 come from in front of Rado- vitzki farm; MLP-Pv 55-IV-28-42 comes from in front of Torres and Stefanazzi farms; MLP-Pv 60-VI-18-101 comes from the left margin of Stefanazzi farm; MLP-Pv 76-VI-12-47 comes from the left bank of Arroyo Chasic?o, 400 m upstream from Bajada de los Toros; MLP-Pv 60-VI-18-100, MLP-Pv 60-VI-18-107, MLP-Pv 92-XI-19-1, and MLP-Pv 92-XI-19-2 come from the Arroyo Chasic?o area, without more precise geographic provenance. |
Metadata
Database number: | 79180 | ||
Authorizer: | D. Croft, J. Zijlstra, J. Carrillo, C. Jaramillo, E. Vlachos, P. Mannion | Enterer: | D. Croft, M. Kouvari, B. Kaphingst, G. Varnham, E. Vlachos, J. Carrillo, K. Pino, J. Zijlstra |
Modifier: | M. Kouvari | Research group: | vertebrate |
Created: | 2008-02-27 11:27:58 | Last modified: | 2019-11-25 06:20:09 |
Access level: | the public | Released: | 2008-02-27 11:27:58 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
26574. | M. A. Zárate, P. H. Schultz, A. Blasi, C. Heil, J. King and W. Hames. 2007. Geology and geochronology of type Chasicoan (late Miocene) mammal-bearing deposits of Buenos Aires (Argentina). Journal of South American Earth Sciences 23:81-90 [D. Croft/D. Croft] |
Secondary references:
27152 | P. Bondesio, J. H. Laza, G. J. Scillato-Yané, E. P. Tonni, and M. G. Vucetich. 1980. Estado actual del conocimiento de los vertebrados de la Formación Arroyo Chasicó (Plioceno temprano) de la provincia de Buenos Aires. Actas II Congreso Argentino de Paleontología y Bioestratigrafía y I Congreso Latinoamericano de Paleontología. 3:101-127 [D. Croft/B. Kaphingst/B. Kaphingst] | |
48414 | D. Brandoni. 2009. Descripción del fémur de Protomegalonyx chasicoensis Scillato-Yané (Mammalia, Xenarthra, Megalonychidae) de la Formación Arroyo Chasicó (Mioceno tardío), provincia de Buenos Aires, Argentina. Consideraciones sistemáticas sobre los perezosos de Edad Chasiquense. Ameghiniana 46(3):513-521 [C. Jaramillo/J. Carrillo] | |
70131 | D. Brandoni and G. De Iuliis. 2007. A new genus for the Megatheriinae (Xenarthra, Tardigrada, Megatheriidae) from the Arroyo Chasicó Formation (Upper Miocene) of Buenos Aires Province, Argentina. Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen 244(1):53-64 [P. Mannion/M. Kouvari] | |
73328 | A. Cabrera. 1928. Sobre algunos megaterios pliocenos. Revista del Museo de La Plata 31:339-352 [P. Mannion/M. Kouvari] | |
84882 | A. Cabrera and L. J. Kraglievich. 1931. Diagnosis previas de los Ungulados fósiles del Arroyo Chasicó. Notas preliminares del Museo de La Plata 1:107-113 [J. Carrillo/K. Pino] | |
71054 | E. Cerdeno. 2000. Los mamiferos de la Formacion Arroyo Chasico (Mioceno Superior), provincia de Buenos Aires, del Museo "J. C. Moyano" de Mendoza. Ameghiniana 37(4):503-508 [P. Mannion/M. Kouvari] | |
42415 | F. de Broin and M. de la Fuente. 1993. Les tortues fossiles d'Argentine: synthese [The fossil turtles of Argentina: synthesis]. Annales de Paléontologie (Invertebrés-Vertebrés) 79(3):169-232 [R. Benson/R. Benson/M. Carrano] | |
64606 | M. S. de la Fuente, G. G. Zacarias, and E. Vlachos. 2018. A review of the fossil record of the South American turtles of the clade Pan-Testudinoidea. Bulletin of the Peabody Museum of Natural History [E. Vlachos/E. Vlachos/S. Bruning] | |
70892 | A. B. De Ringuelet. 1957. Estudio del genero Chasicotherium, Cabrera y Kraglievich 1931 (Notoungulata - Homalodotheriidae). 1(1 y 2):7-14 [P. Mannion/M. Kouvari] | |
70212 | L. R. Gonzalez-Ruiz, G. J. Scillato-Yané, C. M. Krmpotic and A. A. Carlini. 2012. A new species of Peltephilidae (Mammalia: Xenarthra: Cingulata) from the late Miocene (Chasicoan SALMA) of Argentina. Zootaxa 3359:55-64 [P. Mannion/M. Kouvari/P. Mannion] | |
58306 | L. G. Marshall. 1981. Review of the Hathlyacyninae, an extinct subfamily of South American "dog-like" marsupials. Fieldiana Geology 7:1-120 [J. Zijlstra/J. Zijlstra] | |
70911 | R. Pascual. 1961. Un nuevo Cardiomyinae (Rodentia, Caviidae) de la formacion Arroyo Chasico (Plioceno inferior) de la provincia de Buenos Aires. Ameghiniana 2(4):61-71 [P. Mannion/M. Kouvari] | |
69416 | M. E. Pérez, C. M. Deschamps, and M. G. Vucetich. 2018. Diversity, phylogeny and biogeography of the South American 'Cardiomyine' rodents (Hystricognathi, Caviodea) with a description of the two new species. Papers in Palaeontology 4(1):1-19 [P. Mannion/G. Varnham] | |
67585 | L. L. Rasia and A. M. Candela. 2017. Lagostomus telenkechanum, sp. nov., a new lagostomine rodent (Caviomorpha, Chinchillidae) from the Arroyo Chasicó Formation (late Miocene; Buenos Aires Province, Argentina). Journal of Vertebrate Paleontology 37(1):e1239205 [P. Mannion/M. Kouvari] | |
86911 | G. I. Schmidt, C. I. Montalvo, E. Cerdeño, R. Sostillo, R. L. Tomassini and R. A. Bonini. 2022. Updated data on Litopterna from the Huayquerian Stage/Age (Late Miocene-Early Pliocene) of central-east Argentina. Comptes Rendus Palevol 21(32):721-743 [P. Mannion/G. Varnham/P. Mannion] | |
71001 | G. J. Scillato-Yané. 1977. Notas sobre los Dasypodidae (Mammalia, Edentat) del Plioceno del territorio Argentino I. Los restos de edad Chasicoense (Plioceno inferior) del Sur de la provincia de Buenos Aires. Ameghiniana 14(1-4):133-144 [P. Mannion/M. Kouvari] | |
70180 | M. G. Vucetich and M. E. Pérez. 2011. The putative cardiomyines (Rodentia, Cavioidea) of the middle Miocene of Patagonia (Argentina) and the differentiation of the Family Hydrochoeridae. Journal of Vertebrate Paleontology 31(6):1382-1386 [P. Mannion/M. Kouvari] |