Oretanian section, Tachilla Fm., Anti-Atlas Mts., Morocco: Oretanian, Morocco

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Gompholithes sp.
Pterobranchia - Graptoloidea - Dichograptidae
Didymograptus sp. McCoy 1851
Hyolithida
Pauxillites sp.
Hyolithida - Hyolithidae
Elegantilites sp. Marek 1966
Rhynchonellata - Orthida - Euorthisinidae
Euorthisina sp.
Bivalvia - Nuculida - Praenuculidae
Praenucula sp. Pfab 1934
Bivalvia - Solemyida - Ctenodontidae
Ctenodonta sp. Salter 1852
Bivalvia - Modiomorphida - Modiomorphidae
Redonia sp. Rouault 1851
Bivalvia - Coxiconchiidae
Coxiconcha sp. Babin 1966
corrected as Coxiconchia
Ostracoda - Hollinocopida - Tetradellidae
Tetradella sp. Ulrich 1890
Trilobita - Corynexochida - Illaenidae
? Dysplanus sp. Burmeister 1843
Trilobita - Phacopida - Homalonotidae
Colpocoryphe sp. Novak and Perner 1918
Plaesiacomia sp. Hawle and Corda 1847
Trilobita - Phacopida - Bathycheilidae
Bathycheilus sp. Holub 1908
Trilobita - Phacopida - Dalmanitidae
Ormathops sp. Delo 1935
Trilobita - Phacopida - Pliomeridae
Placoparia sp. Hawle and Corda 1847
Trilobita - Asaphida - Asaphidae
Ogygiocaris sp. Angelin 1854
see common names

Geography
Country:Morocco
Coordinates: 32.0° North, 4.0° West (view map)
Paleocoordinates:78.5° South, 98.0° East
Basis of coordinate:estimated from map
Geographic resolution:local area
Time
Period:Ordovician Epoch:Middle Ordovician
10 m.y. bin:Ordovician 2-3
*Period:Middle Ordovician *Epoch:Early/Lower Llanvirn
*Local age/stage:Oretanian
Key time interval:Oretanian
Age range of interval:468.00000 - 459.70000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Tachilla
Stratigraphic resolution:formation
Lithology and environment
Primary lithology:concretionary,shelly/skeletal,gray,green,red or brown lithified argillaceous "shale"
Lithology description: Fossiliferous nodules in green-grey to reddish shale with occasional coquinoids and grey, clayey banks
Environment:offshore
Taphonomy
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Collection excludes:all microfossils,species names
Reason for describing collection:biostratigraphic analysis
Taxonomic list comments:Primarily bivalve taxonomy and biostrat.
Metadata
Database number:20978
Authorizer:A. Miller Enterer:P. Novack-Gottshall
Modifier:P. Novack-Gottshall Research group:marine invertebrate
Created:2002-06-13 08:57:57 Last modified:2002-06-13 14:10:27
Access level:the public Released:0000-00-00 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:

6376. C. Babin and J. Destombes. 1990. Les mollusques bivalves et rostroconches Ordoviciens de l’Anti-Atlas marocain: Intérêt paléogéographique de leur inventaire. Géologie Méditerranéenne 17:243-261 [A. Miller/P. Novack-Gottshall/P. Novack-Gottshall]