Monte Hermoso Formation
| Monte Hermoso Formation | |
|---|---|
| Stratigraphic range: Tortonian (Huayquerian) ~ | |
 The Monte Hermoso beach | |
| Type | Geological formation |
| Underlies | Puerto Belgrano Formation |
| Overlies | Puerto Belgrano Formation Punta Tejada Formation |
| Lithology | |
| Primary | Siltstone, sandstone |
| Other | Conglomerate |
| Location | |
| Coordinates | 38°50′S 61°41′W / 38.83°S 61.69°W |
| Region | Buenos Aires |
| Country | Argentina |
| Type section | |
| Named for | Monte Hermoso |
| Named by | Carlos Zavala |
  Monte Hermoso Formation (Argentina) | |
Monte Hermoso Formation is a geological formation of the Pliocene that crops out prominently at its type locality along the coastal cliffs of Farola Monte Hermoso, in Buenos Aires Province, Argentina. This formation is recognized as the foundational basis for establishing the Montehermosan stage/age of the South American Land Mammal Ages (SALMA).
Paleofauna
Birds
| Taxa | Species | Presence | Abundance | Description | Images | Notes |
|---|---|---|---|---|---|---|
| Chunga | C. incerta | A specimen consists of the distal end of a tibiotarsus. | An early seriema | |||
| Dryornis | D. pampeanus | An Argentinian vulture | ||||
| Foetopterus | F. ambiguus | An early falcon | ||||
| Heterorhea | H. dabbenei | |||||
| Mesembriornis | M. milneedwardsi | A Phorusrhacid formally named Hermosiornis australis | ||||
| Protorhea | P. azarae | An early rhea | ||||
| Tinamisornis | T. intermedius | A tinamidae | ||||
| T. parvulus | ||||||
| Vultur | V. gryphus | |||||
Mammals
Metatherians
| Taxa | Species | Presence | Abundance | Description | Images | Notes |
|---|---|---|---|---|---|---|
| Notocynus | N. hermosicus | A borhyaenid | ||||
| Thylacosmilus | T. atrox | A thylacosmilid | ||||
| Parahyaenodon | P. argentinus | A borhyaenid | ||||
Liptoterns
| Taxa | Species | Presence | Abundance | Description | Images | Notes |
|---|---|---|---|---|---|---|
| Eoauchenia | E. primitiva | A proterotheriid | ||||
| Diplasiotherium | D. robustum | A proterotheriid | ||||
| Promacrauchenia | P. antiqua | |||||
Rodents
| Taxa | Species | Presence | Abundance | Description | Images | Notes |
|---|---|---|---|---|---|---|
| Actenomys | A. priscus | |||||
| Auliscomys | A. formosus | |||||
| Caviodon | C. australis | |||||
| Eumysops | E. laeviplicatus | |||||
| Necromys | N. bonapartei | |||||
| Paramyocastor | P. diligens | |||||
| Phugatherium | P. cataclisticum | |||||
| Pithanotomys | P. columnaris | |||||
Cingulata
| Taxa | Species | Presence | Abundance | Description | Images | Notes |
|---|---|---|---|---|---|---|
| Chorobates | C. rescens | |||||
| C. villosissimus | ||||||
| Doellotatus | D. inornatus | |||||
| Eleutherocercus | E. antiquus | |||||
| Holozaedyus | H. laevisculptus | |||||
| Macrochorobates | M. chapalmalensis | A euphractine cingulate | ||||
| Plohophorus | P. figuratus | |||||
References
- ↑ Tomassini, Rodrigo L., et al. “Biostratigraphy and Biochronology of the Monte Hermoso Formation (Early Pliocene) at Its Type Locality, Buenos Aires Province, Argentina.” Journal of South American Earth Sciences, vol. 48, Dec. 2013, pp. 31–42. DOI.org (Crossref), https://doi.org/10.1016/j.jsames.2013.08.002.
- ↑ Tonni, E. P. (1974). A new cariamid (Aves, Gruiformes) from the Upper Pliocene of Buenos Aires province. Ameghiniana 11 (4): 366–372. Buenos Aires.
- ↑ Heterorhea at Fossilworks.org
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