Borehole 1439/2, Athboy, 550 m: Holkerian, Ireland

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Chlorophyceae - Dasycladales
Koninckopora informal sp. A Lee 1912
Koninckopora tenuiramosa
Eostaffellidae
Eostaffella cf. parastruvei
Archaediscidae
Uralodiscus ? rotundus
Archaediscus concavus
Archaediscus (Nodosarchaediscus) sp.
Archaediscus inflexus
Archaediscus varsanofievae
Archaediscus stilus
Archaediscus chernoussovensis
Tetrataxidae
Tetrataxis ? conica
Valvulinellidae
Valvulinella cf. conciliata
see common names

Geography
Country:Ireland County:Meath
Coordinates: 53.6° North, 6.9° West (view map)
Paleocoordinates:7.6° South, 2.2° West
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period:Carboniferous Epoch:Mississippian
Stage:Visean 10 m.y. bin:Carboniferous 2
Key time interval:Holkerian
Age range of interval:346.70000 - 340.20000 m.y. ago
Stratigraphy
Geological group:Fingal Formation:Lucan Member:6
Local section:1439/2 Local bed:550 m
Local order:top to bottom
Stratigraphic resolution:group of beds
Stratigraphy comments: 482-615.1 m, unit 6a (553.2-615.1 m) = Beauparc Member
Lithology and environment
Primary lithology: lithified "limestone"
Secondary lithology: lithified "shale"
Lithology description: thickly-bedded crinoidal and oolitic packstones and grainstones with breccias in the lower part (Beauparc Member), poorly-graded and bioturbated wackestones alternating with black shales, and a pebbly mudstone bed in the middle part, at the top laminated skeletal packstones and wackestones
Environment:slope
Taphonomy
Size of fossils:mesofossils,microfossils
Collection methods and comments
Collection methods:core,field collection
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:78343
Authorizer:W. Kiessling Enterer:U. Merkel
Research group:marine invertebrate,micropaleontology
Created:2008-02-04 01:54:28 Last modified:2008-02-04 03:54:28
Access level:the public Released:2008-02-04 01:54:28
Creative Commons license:CC BY
Reference information

Primary reference:
26354.1% 5820P. Strogen, G. L. Jones, and I. D. Somerville. 1990. Stratigraphy and sedimentology of Lower Carboniferous (Dinantian) boreholes from west county Meath, Ireland. Geological Journal 25:103-137 [W. Kiessling/U. Merkel]