Aix-en-Provence (Requien Museum collection): Chattian, France

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Arachnida
Arachnida indet. Lamarck 1801
Insecta - Coleoptera - Curculionidae
Curculionidae indet. (Latreille 1802)
Curculionites
Cleonus sp. Schonherr 1826
Insecta - Hymenoptera - Ichneumonidae
Ichneumonidae indet. (Latreille 1802)
original and current combination Ichneumonides
Insecta - Hymenoptera - Formicidae
Formicidae indet. (Latreille 1802)
original and current combination Formicariae
Insecta - Hemiptera - Pentatomidae
Pentatomidae indet. Leach 1815
Insecta - Hemiptera - Coreidae
Coreidae indet. Leach 1815
Insecta - Orthoptera - Acrididae
Acrididae indet. (Latreille 1802)
original and current combination Acrydiana
Insecta - Odonata - Libellulidae
Libellula requieniana n. sp. Nicolas 1890
1 specimen
Libellula pourqueryi n. sp. Nicolas 1890
1 specimen
Insecta - Diptera - Bibionidae
Bibionidae indet. Fleming 1821
Insecta - Diptera - Asilidae
Asilidae indet. (Latreille 1802)
original and current combination Asilici
see common names

Geography
Country:France State/province:Bouches-Du-Rhone
Coordinates: 43.5° North, 5.5° East (view map)
Paleocoordinates:43.3° North, 2.8° East
Basis of coordinate:estimated from map
Geographic resolution:local area
Time
Period:Paleogene Epoch:Oligocene
Stage:Chattian 10 m.y. bin:Cenozoic 4
Key time interval:Chattian
Age range of interval:27.82000 - 23.03000 m.y. ago
Stratigraphy
Formation:Niveau du gypse d'Aix
Stratigraphy comments: "The ‘insect formation’ is 2.5 m thick, divided in two parts that correspond to two very different environmental conditions. The first (lower) episode is remarkable by its lateral monotony of facies on a distance of 6 km at least, in the outcrops observed on the northwest of Aix-en-Provence. This lower episode is distinguished from the rest of the ‘insect formation’ and from the whole formation of Aix-en-Provence by the presence of a very numerous thin limestone laminae. The second (upper) episode is remarkable by the presence of many silicified laminae. The fauna in this level is also very well preserved"
Lithology and environment
Primary lithology:planar lamination lithified "limestone"
Lithology description: The deposit presents an alternation of limestone and marls with gypsum.
Environment:lacustrine - large Tectonic setting:rift
Geology comments: This lacustrine formation was deposited in a very large but shallow-water lake, with variable salinity and near the marine coast (Nury 1990, Nury & Thomassin 1994). Irregular basins formed during extension of the European platform in the Oligocene resulting from the formation of the West-European rift system.
Taphonomy
Modes of preservation:mold/impression,adpression
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Collection method comments: Repository: Museum Requien, Avignon
Metadata
Database number:153412
Authorizer:M. Clapham Enterer:M. Clapham
Modifier:M. Clapham Research group:paleoentomology
Created:2013-12-15 20:16:53 Last modified:2014-08-07 16:49:15
Access level:the public Released:2013-12-15 20:16:53
Creative Commons license:CC BY
Reference information

Primary reference:
49440. H. Nicolas. 1890. Insectes fossiles d'Aix - collection du Muséum Requien, à Avignon. Compte Rendus, Association Française pour l'Avancement des Sciences 18:424-432 [M. Clapham/M. Clapham]