Lagoa do Rumo, Baixa Grande: Holocene, Brazil

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Megatheriidae
UFRJ DG 371; UFRJ DG 362-M
Mammalia - Cingulata - Glyptodontidae
Panochthus greslebini Castellanos 1941
UFRJ DG 372-M (1 measurement)
Mammalia - Proboscidea - Gomphotheriidae
Stegomastodon waringi (Holland 1920)
UFRJ DG 373-M
Mammalia - Notoungulata - Toxodontidae
UFRJ DG 374-M
see common names

Geography
Country:Brazil State/province:Bahia
Coordinates: 11.5° South, 40.1° West (view map)
Paleocoordinates:
Basis of coordinate:stated in text
Altitude:386 meters
Geographic resolution:outcrop
Time
Period: Quaternary Epoch: Holocene
10 m.y. bin: Cenozoic 6
Key time interval: Holocene
Age range of interval: 0.0117 - 0 m.y. ago
Stratigraphy
Stratigraphy comments: The geology of the region is characterized by crystalline rocks belonging to the complex Caraíba, New Tank-Ipirá, Health and Mairi (Vieira et al., 2005). It is the latter which occur migmatitic orthogneisses with mafic and ultramafic enclaves in which are embedded the tanks observed in the rural area. In one of these, in the town of Lagoa Towards were discovered fossils of Late Quaternary megafauna.
Lithology and environment
Primary lithology: breccia
Secondary lithology:black mudstone
Includes fossils?Y
Includes fossils?Y
Lithology description: Tank Pond Towards the fossil has two layers: one baseline, with 1 meter thick, and a top with a thickness of 2 meters. The baseline is characterized as a breach fossiliferous densely packed, consisting of clasts and bioclasts poorly selected. These are arranged randomly in relation to lodging distributed in several size classes. The majority of fossil fuels is fragmented, presenting themselves as well as osteoclasts with angular shapes. The top layer is a black mudstone, rich in organic matter.
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Spatial orientation:random
Preservation of anatomical detail:poor
Fragmentation:frequent
Bioerosion:frequent
Collection methods and comments
Collection methods:selective quarrying,field collection
Reason for describing collection:taxonomic analysis
Collection method comments: Repository: Collection macrofossils Fossils Geology Department of the Federal University of Rio de Janeiro (UFRJ-DG).
Metadata
Also known as:Chapada Diamantina, Baixa Grande
Database number:147605
Authorizer:C. Jaramillo Enterer:M. Vallejo
Research group:vertebrate
Created:2013-07-10 03:01:28 Last modified:2025-02-22 15:12:02
Access level:group members Released:2016-07-10 03:01:28
Creative Commons license:CC0
Reference information

Primary reference:
47529. R. Costa Ribeiro and I. Souza Carvalho. 2009. Megafauna do Quaternário tardio de Baixa Grande , Bahia , Brasil Megafauna of the late Quaternary from Baixa Grande , Bahia , Brazil. Anuário do Instituto de Geociências - UFRJ 32:42-80 [C. Jaramillo/M. Vallejo/A. Cárdenas]