Taquari 1, Riachuelo Formation, Sergipe basin: Aptian - Albian, Brazil

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Echinoidea - Echinoida
Echinoida indet. Troschel 1872
Cephalopoda - Ammonitida - Douvilleiceratidae
Douvilleiceras mammillatum (Schlotheim 1813)
Epicheloniceras sp. (Casey 1954)
Gastropoda
Gastropoda indet. Cuvier 1795
Bivalvia
Bivalvia indet. Linnaeus 1758
Bivalvia - Ostreida - Bakevelliidae
Gervillia (Gervillia) sergipensis Mello et al. 2007
Anthozoa
Anthozoa indet. Ehrenberg 1834
see common names

Geography
Country:Brazil
Coordinates: 10.6° South, 37.0° West (view map)
Paleocoordinates:13.5° South, 6.3° West
Basis of coordinate:stated in text
Geographic resolution:outcrop
Time
Period:Cretaceous Epoch:Early/Lower Cretaceous
Key time interval:Aptian - Albian
Age range of interval:121.40000 - 100.50000 m.y. ago
Stratigraphy
Formation:Riachuelo Member:Maruim
Stratigraphic resolution:group of beds
Stratigraphy comments: These layers are dated as Aptian-Albian based on ammonite zonation (Zucon, 2005; Zucon et al., 2006).
Lithology and environment
Primary lithology:dolomitic lithified "limestone"
Environment:open shallow subtidal
Geology comments: Based on associated fauna and sedimentological data, Hessel (2004) presented information indicating a marine, high-energy environment with well-oxygenated water conditions.
Taphonomy
Modes of preservation:body,mold/impression
Size of fossils:macrofossils
Preservation of anatomical detail:variable
Bioerosion:frequent
Encrustation:frequent
Collection methods and comments
Collection excludes:some macrofossils
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Collection method comments: Associated fauna is composed of other bivalves, ammonites, gastropods, corals, and echinoids.
Metadata
Database number:114715
Authorizer:M. Aberhan Enterer:D. Wellmanns, S. Nurnberg
Modifier:S. Nurnberg Research group:marine invertebrate
Created:2011-08-22 23:58:35 Last modified:2013-04-08 07:28:13
Access level:the public Released:2011-08-22 23:58:35
Creative Commons license:CC BY
Reference information

Primary reference:
37167. L. H. C. Mello, F. T. Mello, and M. H. Zucon. 2007. A new species of Gervillia Defrance (Bivalvia, Bakevelliidae) from the Aptian-Albian transition of Sergipe, Brazil. Revista Brasileira de Paleontologia 10(1):63-69 [M. Aberhan/D. Wellmanns/S. Nurnberg]