Lagoa do Rumo, Baixa Grande (Holocene of Brazil)

Also known as Chapada Diamantina, Baixa Grande

Where: Bahia, Brazil (11.5° S, 40.1° W: paleocoordinates 11.5° S, 40.1° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Holocene (0.0 - 0.0 Ma)

• 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.

Environment/lithology: terrestrial; breccia and black mudstone

• 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.

Size classes: macrofossils, mesofossils

Collection methods: quarrying,

• Repository: Collection macrofossils Fossils Geology Department of the Federal University of Rio de Janeiro (UFRJ-DG).

Primary reference: 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. Cardenas ]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 147605: authorized by Carlos Jaramillo, entered by Maria Vallejo on 10.07.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Mammalia
 Notoungulata - Toxodontidae
Toxodontinae indet.
Toxodontinae indet. Owen 1837 notoungulate
UFRJ DG 374-M
 Proboscidea - Gomphotheriidae
"Stegomastodon waringi" = Notiomastodon platensis
"Stegomastodon waringi" = Notiomastodon platensis Ameghino 1888 gomphothere
UFRJ DG 373-M
 Cingulata - Glyptodontidae
Panochthus greslebini
Panochthus greslebini Castellanos 1941 glyptodon
UFRJ DG 372-M
 Megatherioidea - Megatheriidae
Eremotherium laurillardi
Eremotherium laurillardi Lund 1842 edentate
UFRJ DG 371; UFRJ DG 362-M