Banc-Noir Quarry: Givetian, France
collected by C. Loones

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Pokorninella bricae
Rothpletzella sp. Wood 1948
Crinoidea
Crinoidea indet. Miller 1821
Chondrichthyes - Copodontiformes - Copodontidae
Melanodus loonesi n. gen., n. sp. Darras et al. 2008
Bivalvia
Bivalvia indet. Linnaeus 1758
Rhynchonellata - Spiriferida
Reticulariacea indet. Waagen
Strophomenata - Productida - Productellidae
Productella sp.
Tentaculitida - Tentaculitidae
Tentaculites sp. von Schlotheim 1820
unclassified
Bryozoa indet. Ehrenberg 1831
Trilobita
Trilobita indet. Walch 1771
Ostracoda
Ostracoda indet. Latreille 1802
Ostracoda - Palaeocopida - Cryptophyllidae
Cryptophyllus sp. Levinson 1951
see common names

Geography
Country:France State/province:Nord-Pas-de-Calais
Coordinates: 50.8° North, 1.8° East (view map)
Paleocoordinates:24.4° South, 4.3° East
Basis of coordinate:based on nearby landmark
Geographic resolution:small collection
Time
Period:Devonian Epoch:Middle Devonian
Stage:Givetian 10 m.y. bin:Devonian 3
Key time interval:Givetian Conodont zone: varcus
Age range of interval:387.70000 - 382.70000 m.y. ago
Stratigraphy
Formation:Blacourt Member:Couderousse
Stratigraphy comments: "lower upper Givetian (Middle-Upper varcus Conodont Zone, Pokorninella bricae-Rothpletzella-Tentaculites Assemblage")
Lithology and environment
Primary lithology:bioturbation lithified packstone
Secondary lithology: unlithified lime mudstone
Lithology description: sample "comes from hard, grey ochreous limestone, with granular patches due to bioturbations" and itself consists of "patches of bioclastic bioturbated packstone, in a sandy micritic mudstone"
Environment:deep subtidal shelf
Geology comments: the formation is a "lagoon-like restricted environment, as suggested by the low density of chitinozoan, acritarch and prasinophycean assemblages... Ostracodes suggest that the environment was either lagoon-like or marine, but of shallow water" but the collection itself is "from the inner to middle platform boundary, a little below the FWWB (fair-weather wave base), that is at more or less 25 to 50 m depth"
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:peel or thin section,survey of museum collection
Reason for describing collection:taxonomic analysis
Collectors:C. Loones
Collection method comments: Natural History Museum of Lille collection
thin sections were examined
Metadata
Also known as:Ferques
Database number:90628
Authorizer:J. Alroy Enterer:J. Alroy
Research group:vertebrate
Created:2009-08-11 11:32:14 Last modified:2009-08-11 14:32:14
Access level:the public Released:2009-08-11 11:32:14
Creative Commons license:CC BY
Reference information

Primary reference:
30496. L. Darras, C. Derycke, A. Blieck and D. Vachard. 2008. The oldest holocephalan (Chondrichthyes) from the Middle Devonian of the Boulonnais (Pas-de-Calais, France). 7(5):297-304 [J. Alroy/J. Alroy]