Hermenegildo Beach: Late/Upper Pleistocene, Brazil

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Perissodactyla - Tapiridae
Tapirus cf. terrestris (Linnaeus 1758)
Holanda et al. 2012
MCNPV- 3515, 6968, 8085-8087, 8843, 10069
Mammalia - Panameriungulata - Proterotheriidae
cf. Neolicaphrium recens Frenguelli 1921
Scherer et al. 2009
MCN-PV 6976, 8948
Mammalia - Panameriungulata - Macraucheniidae
Macrauchenia patachonica Owen 1838
Scherer et al. 2009
corrected as Macrauchenia patagonica
MCN-PV 8842, 324, 437, 7283, 8083
Mammalia - Camelidae
Hemiauchenia paradoxa Gervais and Ameghino 1880
Mammalia - Mylodontidae
Scelidotheriinae indet. Ameghino 1889
Cirino et al. 2023
MCN-PV 038 (fragment of distal portion of the left humerus)
Lestodon armatus Gervais 1855
Cirino et al. 2023
MCN-PV 340 (proximal portion of left radius); MCN-PV 1927 (incomplete left radius); MCN-PV 5708 (right tibia); MCN-PV 5705, 5707, 5709 (distal portions of right tibiae); MCN-PV 5711, 9685 (distal portions of left tibiae); MCN- PV 5719, 5720, 5721, 5722, 5723, 6065, 6201, 7928, 8653, 9652, 9655, 9656, 9657 (left astragali); MCN-PV 5715, 5717, 6899, 9654 (right astragali)
Glossotherium robustum (Owen 1842)
Cirino et al. 2023
MCN-PV 8247 (right tibia); MCN-PV 59, 36611 (left tibia); MCN-PV 325 (distal portion of left tibia); MCN-PV 7929 (distal portion of right tibia); MCN- PV 5716 (left astragalus); MCN-PV 6603 (right astragalus); MCN-PV 9718 (right radius)
Reptilia - Testudines - Testudinidae
Chelonoidis cf. carbonaria Spix 1824
Maciel et al. 1996
corrected as Chelonoidis carbonarius
see common names

Geography
Country:Brazil State/province:Rio Grande do Sul
Coordinates: 33.7° South, 53.3° West (view map)
Paleocoordinates:33.7° South, 53.2° West
Basis of coordinate:stated in text
Geographic resolution:local area
Time
Period:Quaternary Epoch:Pleistocene
10 m.y. bin:Cenozoic 6
Key time interval:Late/Upper Pleistocene
Age range of interval:0.12600 - 0.01170 m.y. ago
Stratigraphy
Stratigraphic resolution:group of beds
Stratigraphy comments: The coastal plain of Rio Grande do Sul have developed the lateral juxtaposition of a depositional system of alluvial fans, and four systems of lagoon-barrier (Villwock & Tomazelli, 1995). The four lagoon-barrier systems were formed starting from four transgressive-regressive events: systems I, II and III of Pleistocene age and System IV of Holocene age. The fossils studied are associated with the deposits of the Lagoon-Barrier System III. These fossils are rolled and collected at the beach.
Lithology and environment
Primary lithology: not reported
Environment:lagoonal
Geology comments: The fossils present dark coloration, high density and carbonate cement, suggesting reworking by the marine ambient (Lopes et al., 2001). After the deposition in lagoonal ambient (probably the Lagoon III), posterior to the fossilization process, they were reworked and cemented by calcium carbonate in a marine shore environment and preserved in sandstones and carbonate in the parcels and submerged banks (foreshore and continental platform). Later, they were exposed to weathering, when there was recrystalization of the carbonate in fresh water. The fossils presently rolled in he coastline are from several source-areas that were formed of old atrand lines, and transported due to the action of present hydrodynamic processes (Buchmann, 1994, 2002)
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Fragmentation:frequent
Collection methods and comments
Collection excludes:all macrofossils
Collection methods:survey of museum collection
Reason for describing collection:taxonomic analysis
Collection method comments: The fossils are rolled and collected at the beach.
The material is deposited in the Paleovertebrates Collection of Museu de Ciências Naturais da Fundação Zoobotânica do Rio Grande do Sul and Laboratório de Estratigrafia e Paleobiologia da Universidade Federal de Santa Maria.
Metadata
Also known as:Playa Hermenegildo; Santa Vitória do Palmar
Database number:149143
Authorizer:C. Jaramillo, E. Vlachos, P. Mannion Enterer:C. Suarez-Gomez, G. Varnham, P. Mannion, E. Vlachos
Modifier:P. Mannion Research group:vertebrate
Created:2013-07-29 13:38:55 Last modified:2020-07-31 08:49:24
Access level:the public Released:2013-07-29 13:38:55
Creative Commons license:CC BY
Reference information

Primary reference:

47662. C. S. Scherer, J. Ferigolo, and A. M. Ribeiro. 2007. Contribution to the knowledge of Hemiauchenia paradoxa (Artiodactyla, Camelidae) from the Pleistocene of southern Brazil. Revista Brasileira de Paleontologia 10(1):35-52 [C. Jaramillo/C. Suarez-Gomez]

Secondary references:

86610 M. Cirino, V. G. Pitana, R. Negri, C. Cartelle, J. Ferigolo and A. M. Ribeiro. 2023. New Postcranial Remains of Ground Sloths (Xenarthra, Folivora, Mylodontidae) from Southern Brazil. Revista Brasileira de Paleontologia 25(4):35-55 [P. Mannion/G. Varnham]
73241 E. C. Holanda, A. M. Ribeiro, and J. Ferigolo. 2012. New material of Tapirus (Perissodactyla: Tapiridae) from the Pleistocene of southern Brazil. Revista Mexicana de Ciencias Geológicas 29(2):308-318 [P. Mannion/P. Mannion]
64607 L. Maciel, A. M. Ribeiro, and F. Sedor. 1996. Consideracoes sobre os quelonios fósseis do Quaternario do Rio Grande do Sul, Brasil. Ameghiniana 33:467-467 [E. Vlachos/E. Vlachos]
47945 C. S. Scherer, V. G. Pitana, and A. M. Ribeiro. 2009. Proterotheriidae and Macraucheniidae (Litopterna, Mammalia) from the Pleistocene of Rio Grande do Sul State, Brazil. Revista Brasileira de Paleontologia 12(3):231-246 [C. Jaramillo/C. Suarez-Gomez/C. Suarez-Gomez]