Puerto Visser - Bahía Bustamante: Danian, Argentina
collected by Nestor Ronconi

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Xenungulata
1 specimen
MPEF-PV 1871, fragmentary left lower jaw with well preserved m3
Mammalia - Xenungulata - Carodniidae
1 specimen
MPEF-PV 1872, right dentary fragment with broken m2
Gelfo et al. 2024
MPEF-PV 1872-1874
see common names

Geography
Country:Argentina State/province:Chubut
Coordinates: 45.3° South, 67.0° West (view map)
Paleocoordinates:46.4° South, 56.3° West (Wright 2013)
Basis of coordinate:stated in text
Geographic resolution:small collection
Time
Period: Paleogene Epoch: Paleocene
Stage: Danian 10 m.y. bin: Cenozoic 1
Key time interval: Danian Mammal zone:  Carodnian
Age range of interval: 66 - 61.66 m.y. ago
Stratigraphy
Geological group:Río Chico Formation:Peñas Coloradas
Stratigraphic resolution:group of beds
Stratigraphy comments: Generally regarded as middle or late Paleocene in age (e.g. Gelfo et al. 2009), but the fossil-bearing horizons (Carodnia zone) were dated as late Danian–Selandian by Clyde et al. (2014) and refined to late Danian by Krause et al. (2017)

Informal Carodnian zone, between Peligran and Itaboraian SALMA. Approximately correlative to the Selandian (Woodburne et al. 2014)
Lithology and environment
Primary lithology: not reported
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Collectors:Nestor Ronconi
Collection method comments: MPEF-PV: Museo Paleontolo´gico Egidio Feruglio, Trelew, Argentina
Metadata
Database number:79348
Authorizer:D. Croft, P. Mannion Enterer:D. Croft, P. Mannion
Modifier:P. Mannion Research group:vertebrate
Created:2008-03-03 15:06:13 Last modified:2025-02-22 15:12:02
Access level:the public Released:2008-03-03 15:06:13
Creative Commons license:CC0
Reference information

Primary reference:
26605. J. N. Gelfo, G. M. López, and M. Bond. 2008. A new Xenungulata (Mammalia) from the Paleocene of Patagonia Argentina. Journal of Paleontology 82(2):329-335 [D. Croft/D. Croft]

Secondary references:

89011 J. N. Gelfo, G. M. López, and M. Bond. 2024. New insights on the anatomy, paleobiology, and biostratigraphy of Xenungulata (Mammalia) from the Paleogene of South America. Palaeontologia Electronica 27(2):a30 [P. Mannion/P. Mannion]
57561 M. O. Woodburne, F. J. Goin, M. Bond, A. A. Carlini, J. N. Gelfo, G. M. López, A. Iglesias and A. N. Zimicz. 2014. Paleogene Land Mammal Faunas of South America; a Response to Global Climatic Changes and Indigenous Floral Diversity. Journal of Mammalian Evolution 21:1-73 [R. Butler/R. Butler]