Where: Chubut, Argentina (43.3° S, 65.5° W: paleocoordinates 45.8° S, 55.5° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Sapoan mammal zone, Río Chico Group, Early/Lower Eocene to Early/Lower Eocene (55.8 - 37.7 Ma)
• Stratigraphic correlations of this locality are unclear. Tejedor et al. (2009: Am. Museum Novitates 3638) note that it shares taxa with the "Sapoan" SALMA/Paso del Sapo local fauna, but also taxa from the Itaboraian of Canadon Hondo. This suggests an Early to Middle Eocene date.
• group of beds-level stratigraphic resolution
Environment/lithology: terrestrial; sandstone
Size classes: macrofossils, mesofossils
Primary reference: L. G. Marshall. 1982. Systematics of the extinct South American marsupial family Polydolopidae. Fieldiana Geology 12:1-109 [R. Butler/R. Butler]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 175735: authorized by Richard Butler, entered by Richard Butler on 07.01.2016, edited by Evangelos Vlachos
Creative Commons license: CC BY (attribution)
Taxonomic list
| Reptilia | |
|
| |
| Mammalia | |
"Polydolops rothi n. sp." = Pliodolops rothi
"Polydolops rothi n. sp." = Pliodolops rothi Simpson 1936 metatherian MLP 11-122, a partial left mandibular ramus with alveoli of P2 and P:!-M2 complete
| |
|
| |
"Monolophodon minutus n. gen. n. sp." = Henricosbornia minuta2
"Monolophodon minutus n. gen. n. sp." = Henricosbornia minuta2 Roth 1904 notoungulate MLP 12-2174, left M3 (see also ref 10312)
| |
"Lelfunia haugi n. gen. n. sp." = Isotemnus haugi2
"Lelfunia haugi n. gen. n. sp." = Isotemnus haugi2 Roth 1902 notoungulate MLP 12-2206, left M2 (see also ref 10312)
| |