Quebrada La Totora, Profil 4, Sample 5-1: Middle Toarcian, Chile

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Rhynchonellata - Rhynchonellida - Rhynchonellidae
5 individuals
Rhynchonellata - Terebratulida - Lobothyrididae
Lobothyris subpunctata (Davidson 1851)
3 individuals
Gastropoda - Heterostropha - Nerinellidae
? Nerinella sp. Sharpe 1849
2 individuals
Bivalvia - Trigoniida - Myophorellidae
3 individuals
Bivalvia - Lucinida - Lucinidae
Mesomiltha bellona d'Orbigny 1850
10 individuals
1 individual
Bivalvia - Cardiida - Cardiidae
1 individual
Bivalvia - Pholadida - Pleuromyidae
Pleuromya uniformis Sowerby 1813
77 individuals
Bivalvia - Pholadida - Ceratomyidae
Gresslya peregrina (Phillips 1829)
102 individuals
Bivalvia - Pandorida - Laternulidae
Cercomya undulata Sowerby 1827
12 individuals
Bivalvia - Pholadomyida - Pholadomyidae
Pholadomya fidicula Sowerby 1826
68 individuals
Bivalvia - Arcida - Cucullaeidae
4 individuals
Bivalvia - Ostreida - Gryphaeidae
Gryphaea sp. Lamarck 1801
2 individuals
2 individuals
Bivalvia - Ostreida - Bakevelliidae
Gervillaria hartmanni (Münster 1834)
1 individual
Bivalvia - Mytilida - Mytilidae
3 individuals
Modiolus giganteus Quenstedt 1857
3 individuals
Modiolus imbricatus (Sowerby 1818)
2 individuals
see common names

Geography
Country:Chile
Coordinates: 28.7° South, 70.2° West (view map)
Paleocoordinates:29.3° South, 20.1° West (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period: Jurassic Epoch: Early Jurassic
Stage: Toarcian 10 m.y. bin: Jurassic 3
Key time interval: Middle Toarcian
Age range of interval: 182.9 - 180.4 m.y. ago
Stratigraphy
Local section:Quebrada La Totora Local bed:5-1
Local order:bottom to top
Stratigraphic resolution:bed
Lithology and environment
Primary lithology: lithified sandstone
Environment:open shallow subtidal Tectonic setting:back-arc basin
Taphonomy
Modes of preservation:body,mold/impression,original calcite,replaced with silica
Size of fossils:macrofossils
Articulated whole bodies:some
Temporal resolution:time-averaged
Spatial resolution:parautochthonous
Collection methods and comments
Collection methods:mechanical
Collection size:301 individuals
Reason for describing collection:paleoecologic analysis
Metadata
Database number:35447
Authorizer:M. Aberhan Enterer:S. Nurnberg
Modifier:M. Clapham Research group:marine invertebrate
Created:2003-12-16 01:08:43 Last modified:2025-02-22 15:12:02
Access level:the public Released:2003-12-16 01:08:43
Creative Commons license:CC0
Reference information

Primary reference:
487. M. Aberhan. 1992. Palokologie und zeitliche Verbreitung benthischer Faunengemeinschaften im Unterjura von Chile. Beringeria 5:1-174 [M. Kosnik/M. Kosnik]