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Bajada del Agria, Chorriaca, Loncopué Department, Neuquén Province, Argentina

FormationBajada del Agria
Member(s)Pilmatue
Age:140 - 136 Ma
Early/Lower Cretaceous
IntervalLate Valanginian
Lithologymudstone/"limestone", sandstone/mudstone
Number of Collections2
Number of Occurrences18

Recorded Sample Locations

LocationRegionStratigraphic Name
Bajada del Agrio - Basal faciesChorriaca, Loncopué Department, Neuquén Province, ArgentinaBajada del Agria

Associated Units

Stratigraphic NameAgeLithologyOccurrence Records
Bajada del Agria - Pilmatue136 - 130 Ma
Early/Lower Cretaceous
sandstone38

Recorded Fossils

Accepted NameHierarchyAge
Parsimonia sp.
genus
6Animalia : Annelida : Polychaeta : Sabellida : Serpulidae : Parsimonia140.2 - 136.4 Ma
Early/Lower Cretaceous
Serpulidae
family
5Animalia : Annelida : Polychaeta : Sabellida : Serpulidae136.4 - 130 Ma
Early/Lower Cretaceous
Bryozoa
phylum
2Animalia : Bryozoa136.4 - 130 Ma
Early/Lower Cretaceous
Columastrea antiqua
species
7Animalia : Cnidaria : Anthozoa : Scleractinia : Columastraeidae : Columastrea : Columastrea antiqua136.4 - 130 Ma
Early/Lower Cretaceous
Cucullaea sp.
genus
6Animalia : Mollusca : Bivalvia : Arcida : Cucullaeidae : Cucullaea140.2 - 136.4 Ma
Early/Lower Cretaceous
Myoconcha sp.
genus
6Animalia : Mollusca : Bivalvia : Venerida : Kalenteridae : Myoconcha136.4 - 130 Ma
Early/Lower Cretaceous
Eriphyla argentina
species
7Animalia : Mollusca : Bivalvia : Carditida : Astartidae : Eriphyla : Eriphyla argentina140.2 - 136.4 Ma
Early/Lower Cretaceous
Ptychomya sp.
genus
6Animalia : Mollusca : Bivalvia : Carditida : Astartidae : Ptychomya136.4 - 130 Ma
Early/Lower Cretaceous
Panopea sp.
genus
6Animalia : Mollusca : Bivalvia : Hiatellida : Hiatellidae : Panopea140.2 - 136.4 Ma
Early/Lower Cretaceous
Modiolus subsimplex
species
7Animalia : Mollusca : Bivalvia : Mytilida : Mytilidae : Modiolus : Modiolus subsimplex140.2 - 136.4 Ma
Early/Lower Cretaceous
Gervillaria sp.
genus
6Animalia : Mollusca : Bivalvia : Ostreida : Bakevelliidae : Gervillaria136.4 - 130 Ma
Early/Lower Cretaceous
Gervillella aviculoides
species
7Animalia : Mollusca : Bivalvia : Ostreida : Bakevelliidae : Gervillella : Gervillella aviculoides140.2 - 136.4 Ma
Early/Lower Cretaceous
Amphidonte (Ceratostreon) sp.
subgenus
6.3Animalia : Mollusca : Bivalvia : Ostreida : Gryphaeidae : Amphidonte : Amphidonte (Ceratostreon)140.2 - 136.4 Ma
Early/Lower Cretaceous
Exogyra (Aetostreon) sp.
subgenus
6.3Animalia : Mollusca : Bivalvia : Ostreida : Gryphaeidae : Exogyra : Exogyra (Aetostreon)140.2 - 136.4 Ma
Early/Lower Cretaceous
Isognomon sp.
genus
6Animalia : Mollusca : Bivalvia : Ostreida : Pteriidae : Isognomon136.4 - 130 Ma
Early/Lower Cretaceous
Pinna robinaldina
species
7Animalia : Mollusca : Bivalvia : Ostreida : Pinnidae : Pinna : Pinna robinaldina140.2 - 136.4 Ma
Early/Lower Cretaceous
Mimachlamys robinaldina
species
7Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : Chlamys : Mimachlamys robinaldina136.4 - 130 Ma
Early/Lower Cretaceous
Pholadomya gigantea
species
7Animalia : Mollusca : Bivalvia : Pholadomyida : Pholadomyidae : Pholadomya : Pholadomya gigantea140.2 - 136.4 Ma
Early/Lower Cretaceous
Pterotrigonia sp.
genus
6Animalia : Mollusca : Bivalvia : Trigoniida : Megatrigoniidae : Pterotrigonia140.2 - 136.4 Ma
Early/Lower Cretaceous
Steinmanella pehuenmapuensis
species
7Animalia : Mollusca : Bivalvia : Trigoniida : Steinmanellidae : Steinmanella : Steinmanella pehuenmapuensis140.2 - 136.4 Ma
Early/Lower Cretaceous
Steinmanella transitoria
species
7Animalia : Mollusca : Bivalvia : Trigoniida : Steinmanellidae : Steinmanella : Steinmanella transitoria140.2 - 136.4 Ma
Early/Lower Cretaceous
Trigonia sp.
genus
6Animalia : Mollusca : Bivalvia : Trigoniida : Trigoniidae : Trigonia140.2 - 136.4 Ma
Early/Lower Cretaceous
Aphrodina sp.
genus
6Animalia : Mollusca : Bivalvia : Hippuritida : Cycloconchidae : Aphrodina140.2 - 136.4 Ma
Early/Lower Cretaceous
Holcoptychites sp.
genus
6Animalia : Mollusca : Cephalopoda : Ammonoidea : Holcodiscidae : Holcoptychites136.4 - 130 Ma
Early/Lower Cretaceous
Hoplitocrioceras sp.
genus
6Animalia : Mollusca : Cephalopoda : Ammonoidea : Neocomitidae : Hoplitocrioceras136.4 - 130 Ma
Early/Lower Cretaceous
Neocomites sp.
genus
6Animalia : Mollusca : Cephalopoda : Ammonoidea : Neocomitidae : Neocomites140.2 - 136.4 Ma
Early/Lower Cretaceous
Pleurotomaria sp.
genus
6Animalia : Mollusca : Gastropoda : Trochida : Microdomatidae : Pleurotomaria136.4 - 130 Ma
Early/Lower Cretaceous

References

Lazo D. G. (2003) Taxonomy, facies relationships and palaeobiology of bakevelliid bivalves from the Lower Cretaceous of west-central Argentina , Cretaceous Research 24 6, 765-788
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!
 
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