Miramar (level 1): Lujanian, Argentina
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Mammalia
- Cingulata
|
||||||||||
|
Lomaphorus sp.
Ameghino 1889
|
||||||||||
| MAMM-PV 016 | ||||||||||
|
Mammalia
- Cingulata
- Glyptodontidae
|
||||||||||
|
Panochthus sp.
Burmeister 1866
|
||||||||||
| MAMM-PV 024 | ||||||||||
|
Glyptodon sp.
Owen 1839
|
||||||||||
| MAMM-PV 025 | ||||||||||
|
Mammalia
- Cingulata
- Panochthidae
|
||||||||||
|
Neosclerocalyptus sp.
Paula Couto 1957
|
||||||||||
| MAMM-PV 021, 022 | ||||||||||
|
Mammalia
- Mylodontidae
|
||||||||||
|
Scelidotherium sp.
Owen 1839
|
||||||||||
| MAMM-PV 017 | ||||||||||
|
Mammalia
- Perissodactyla
- Equidae
|
||||||||||
|
Equus (Amerhippus) sp.
(Hoffstetter 1950)
|
||||||||||
| invalid subgroup of Equus | ||||||||||
| MAMM-PV 001 - 008 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Argentina | State/province: | Cordoba |
| Coordinates: | 30.9° South, 62.7° West (view map) | ||
| Paleocoordinates: | 30.9° South, 62.7° West | ||
| Basis of coordinate: | stated in text | ||
| Geographic resolution: | small collection |
Time
| Period: | Quaternary | Epoch: | Pleistocene |
| 10 m.y. bin: | Cenozoic 6 | ||
| Key time interval: | Lujanian | ||
| Age range of interval: | 0.30000 - 0.01170 m.y. ago |
Stratigraphy
| Formation: | Tezanos Pinto | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: The Tezanos Pinto Formation was dated by Kröhling (1999a,b) and Kröhling and Iriondo (1999) by a series of TL age estimates in Santa Fe and Córdoba provinces, and more recently by Kemp et al. (2004) by OSL at the type locality of Tortugas (Santa Fe Province). TL dates at the base of the Tezanos Pinto Formation gave ages of 35.89 ? 1.03 ky BP, 31.69 ? 1.62 ky BP, and 32.00 ky BP. OSL dates obtained by Kemp et al. (2004) suggest that the base of this unit may be considerably older, ca. 149.4 ? 9.5 ky BP. At the top of this formation, TL dates gave ages of 8.15 ? 0.40 ky BP below the paleosol and 9.39 ? 0.63 ky BP (Kröhling, 1999a,b; Kröhling and Iriondo, 1999).
Biostratigraphic mammal assemblage 1: Neosclerocalyptus paskoensise Equus (Amerhippus) assemblage zone with type area and profile based on the San Francisco locality, referred to the Lujanian (late Pleistoceneeearly Holocene), and comparable to the Equus (Amerhippus) neogeus Biozone of Buenos Aires Province; | |||||
Lithology and environment
| Primary lithology: | paleosol/pedogenic poorly lithified muddy siltstone |
| Includes fossils? | Y |
| Lithology description: The Tezanos Pinto Formation is typical loess, composed of silt, with clay in variable and subordinate amounts, and with rare fine to very fine sand (Kröhling and Iriondo, 1999). The top of this formation is marked by a Hypsithermal palaeosoil, partially eroded, and typi- cally represented by a Bt horizon (Kröhling, 1999a,b; Kröhling and Iriondo, 1999). | |
| Environment: | loess |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | biostratigraphic analysis |
| Collection method comments: Cruz 2013 re-examined the specimens & stratigraphy of fossil localities of Cordoba including this one. | |
| Taxonomic list comments:The fossil material of Miramar is housed in the regional museum of Miramar MAMM | |
Metadata
| Database number: | 197919 | ||
| Authorizer: | P. Mannion | Enterer: | M. Kouvari | Research group: | vertebrate |
| Created: | 2018-11-29 08:04:42 | Last modified: | 2018-11-29 08:04:42 |
| Access level: | the public | Released: | 2018-11-29 08:04:42 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 67447. | L. E. Cruz. 2013. Biostratigraphy and geochronology of the late Cenozoic of Córdoba Province (central Argentina). Journal of South American Earth Sciences 42:250-259 [P. Mannion/M. Kouvari] |