Also known as Zone of Xenodontomys elongatus
Where: Buenos Aires, Argentina (35.7° S, 64.7° W: paleocoordinates 35.8° S, 63.0° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Saldungaray Formation, Messinian (7.2 - 5.3 Ma)
• The stratotype is recognized in the lower levels of the Cerro Azul Formation in this locality
•
•Prevosti et al. (2023): By combining our new radioisotopic dates with biochronology (Supplementary Table S6), a further refinement of the sigmodontine temporal record is now possible. Our results indicate a median age of 5.773 Ma (range 6.214 –5.115 Ma) for the Caleufú assemblage.
Environment/lithology: terrestrial; brown, red, silty sandstone
•partly carbonated, with intercalations of paleosols and calcrete
•levels.
Size classes: macrofossils, mesofossils
Primary reference: D. H. Verzi, C. I. Montalvo, and C. M. Deschamps. 2008. Biostratigraphy and biochronology of the Late Miocene of central Argentina: Evidence from rodents and taphonomy. Geobios 41:145-155 [C. Jaramillo/M. Vallejo]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 152069: authorized by Carlos Jaramillo, entered by Maria Vallejo on 05.11.2013, edited by Miranta Kouvari
Creative Commons license: CC BY (attribution)
Taxonomic list
| Mammalia | |
|
Neophanomys biplicatus Rovereto 1914 caviomorph | |
|
Phtoramys homogenidens Ameghino 1887 caviomorph | |
Macroeuphractus sp., Macroeuphractus morenoi, Proeuphractus sp., Chorobates villosissimus, Chorobates cf. villosissimus, Chasicotatus sp., Chasicotatus ameghinoi, Ringueletia simpsoni, Doellotatus inornatus, Doellotatus chapadmalensis
Macroeuphractus sp. Ameghino 1887 armadillo
Macroeuphractus morenoi Lydekker 1894 armadillo
Proeuphractus sp. Ameghino 1886 armadillo
Chorobates villosissimus Reig 1958 armadillo
Chorobates cf. villosissimus Reig 1958 armadillo
Chasicotatus sp. Scillato-Yané 1977 armadillo
Doellotatus inornatus Rovereto 1914 armadillo
Doellotatus chapadmalensis Bordas 1932 armadillo | |