Nant-y-Gamar, Llandudno, bryozoan buildup: Asbian, United Kingdom

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Nodosarchaediscus sp.
? Koskinotextularia cribriformis
Florennella sp. Conil 1979
Glomospiranella sp.
Plectogyranopsis sp.
Endothyridae
Endostaffella fluctata
Nibelia nibelis
Endothyra ? acantha
Endothyranopsis crassa
Eostaffellidae
Mediocris mediocris (Vissarionova 1948)
Eostaffella sp. Rauser-Chernousova 1948
Parathuramminidae
Parathurammina suleimanovi
Earlandiidae
Earlandia vulgaris
Earlandia minor
Pseudoammodiscidae
Pseudoammodiscus nudus
Brunsia irregularis
Brunsia pulchra
Archaediscidae
Archaediscus involutus
Tetrataxidae
Tetrataxis paraminima
Valvulinellidae
Valvulinella youngi
unclassified
Forschia parvula
Chlorophyceae - Dasycladales
Koninckopora minuta
Koninckopora mortelmansi
Koninckopora inflata de Koninck 1842
Crinoidea
Crinoidea indet. Miller 1821
Trilobita
Trilobita indet. Walch 1771
Stenolaemata - Trepostomata - Batostomellidae
Batostomella sp. Bassler 1911
Stenolaemata - Trepostomata - Heterotrypidae
Leioclema sp. Ulrich 1882
Stenolaemata - Cryptostomata - Acanthocladiidae
Polypora sp.
Stenolaemata - Cryptostomata - Fenestellidae
Hemitrypa hibernica
Fenestella sp. Lonsdale 1839
Stenolaemata - Cystoporata - Fistuliporidae
Fistulipora incrustans Moore 1929
Stenolaemata - Trepostomida - Stenoporidae
Tabulipora sp.
Stenopora sp. Lonsdale 1844
Stenophragmidium sp.
Stenolaemata - Rhabdomesida - Rhomboporidae
Rhombopora sp. Meek 1872
unclassified
Brachiopoda indet. Cuvier 1805
Strophomenata - Productida - Monticuliferidae
Gigantoproductus maximus
Gastropoda
Gastropoda indet. Cuvier 1795
Anthozoa - Stauriida - Amplexidae
Amplexus sp. Sowerby 1814
Anthozoa - Stauriida - Lithostrotionidae
Siphonodendron socialis
Siphonodendron martini (Milne-Edwards and Haime 1851)
Anthozoa - Stauriida - Cyathopsidae
Pseudozaphrentoides juddi
Anthozoa - Stauriida - Laccophyllidae
Amplexocarinia sp. Soshkina 1928
Anthozoa - Stauriida - Aulophyllidae
Clisiophyllum cf. keyserlingi McCoy 1849
Anthozoa - Stauriida - Hapsiphyllidae
Zaphrentites sp. Hudson 1941
Anthozoa - Stauriida - Antiphyllidae
Fasciculophyllum sp. Thomson 1883
Anthozoa - Auloporida - Syringoporidae
Syringopora sp. Goldfuss 1826
Anthozoa - Favositida - Micheliniidae
Michelinia sp. de Koninck 1841
Michelinia cf. tenuisepta
see common names

Geography
Country:United Kingdom State/province:Wales
Coordinates: 53.3° North, 3.8° West (view map)
Paleocoordinates:6.7° South, 0.4° East
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:Asbian
Age range of interval:340.20000 - 336.30000 m.y. ago
Stratigraphy
Formation:Llandudno Pier Dolomite
Stratigraphic resolution:group of beds
Stratigraphy comments: upper part of the formation
Lithology and environment
Primary lithology: lithified wackestone
Secondary lithology: lithified packstone
Includes fossils?Y
Includes fossils?Y
Lithology description: Basal facies: mud-rich wackestone/floatstone with bryozoans, corals, crinoids, brachiopods, gastropods, 2 m thick. Bulk facies: bryozoan fine packstone with crinoids, brachiopods, rare trilobits, 30 m thick. Bryozoan packstone capbeds with corals, brachiopods, gastropods, crinoids and skeletal debris, 3 m thick.
Environment:platform/shelf-margin reef
Geology comments: northern margin of an extensive carbonate platform north of St. George's Land
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils,microfossils
Collection methods and comments
Collection methods:peel or thin section,field collection
Reason for describing collection:general faunal/floral analysis
Metadata
Also known as:Reef 1313
Database number:76084
Authorizer:W. Kiessling Enterer:U. Merkel
Modifier:U. Merkel Research group:marine invertebrate,micropaleontology
Created:2007-11-13 00:31:52 Last modified:2007-11-13 02:32:52
Access level:authorizer only Released:2009-11-13 00:31:52
Creative Commons license:CC BY
Reference information

Primary reference:
25784. A. J. Bancroft, I. D. Somerville, and A. R. E. Strank. 1988. A bryozoan buildup from the Lower Carboniferous of North Wales. Lethaia 21:51-65 [W. Kiessling/U. Merkel]