Ribbed Atrypid-Rothpleztella/Girvanella Comm., Much Wenlock Lst.: Homerian, United Kingdom

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Strophomenata - Orthotetida - Chilidiopsidae
Coolinia sp. Bancroft 1949
spelled with current rank as Fardenia (Coolinia)
Strophomenata - Strophomenida - Strophochonetidae
Protochonetes sp. Muir-Wood 1962
Strophomenata - Strophomenida - Leptestiidae
Leangella sp. Opik 1933
Strophomenata - Strophomenida - Strophodontidae
Pholidostrophia sp. Hall and Clarke 1892
Strophomenata - Strophomenida - Furcitellidae
Pentlandina sp. Bancroft 1949
Strophomenata - Strophomenida - Leptostrophiidae
Leptostrophia sp. Hall and Clarke 1892
Strophomenata - Strophomenida - Amphistrophiidae
Amphistrophia sp. Hall and Clarke 1892
Strophomenata - Strophomenida - Rafinesquinidae
Scamnomena sp. Bassett 1977
Leptaena sp. Dalman 1828
Rhynchonellata - Pentamerida - Gypidulidae
Gypidula sp. Hall 1867
Rhynchonellata - Pentamerida - Clorindidae
Antirhynchonella sp. Oehlert 1887
Rhynchonellata - Spiriferida - Cyrtinopsidae
Kozlowskiellina sp. Boucot 1958
Rhynchonellata - Spiriferida - Delthyrididae
Howellella elegans Muir-Wood 1925
Rhynchonellata - Spiriferida - Cyrtiidae
Cyrtia sp. Dalman 1828
Eospirifer sp. Schuchert 1913
Rhynchonellata - Athyridida - Meristellidae
Whitfieldella sp. Hall and Clarke 1893
Rhynchonellata - Athyridida - Nucleospiridae
Nucleospira sp. Hall 1859
Rhynchonellata - Atrypida - Glassiidae
Glassia sp. Davidson 1881
genus name in quotes
Rhynchonellata - Atrypida - Atrypidae
Atrypidae indet. Gill 1871
heavily ribbed atrypid
Atrypa sp. Dalman 1828
Rhynchonellata - Rhynchonellida - Trigonirhynchiidae
Microsphaeridiorhynchus sp. Sartenaer 1970
Rhynchotreta sp. Hall 1879
Rhynchonellata - Rhynchonellida - Hebetoechiidae
Sphaerirhynchia wilsoni (de Sowerby 1816)
Rhynchonellata - Orthida - Dicoelosiidae
Dicoelosia sp. King 1850
Rhynchonellata - Orthida - Rhipidomellidae
Dalejina sp. Havlicek 1953
Rhynchonellata - Orthida - Dalmanellidae
Resserella sp. Bancroft 1928
Isorthis sp. Kozlowski 1929
unclassified
Bryozoa indet. Ehrenberg 1831
Stenolaemata - Cystoporata - Fistuliporidae
Fistuliporidae indet. Ulrich 1882
Stenolaemata - Cryptostomata
Cryptostomata indet. Vine 1884
Stenolaemata - Trepostomata
Trepostomata indet. Ulrich 1882
Anthozoa - Favositida - Favositidae
Favosites spp.
Anthozoa - Heliolitida - Stelliporellidae
Stelliporella parvistella
Anthozoa - Heliolitida - Heliolitidae
Heliolites spp.
unclassified
Rothpletzella sp. Wood 1948
algae
Hormogoneae - Oscillatoriales - Girvanellaceae
algae
see common names

Geography
Country:United Kingdom State/province:England
Coordinates: 52.0° North, 2.0° West (view map)
Paleocoordinates:28.9° South, 12.7° West
Basis of coordinate:based on political unit
Geographic resolution:local area
Time
Period:Silurian Epoch:Wenlock
Stage:Homerian 10 m.y. bin:Silurian 2
Key time interval:Homerian
Age range of interval:430.50000 - 427.40000 m.y. ago
Stratigraphy
Formation:Much Wenlock
Stratigraphic resolution:formation
Stratigraphy comments: ?ludensis zone
Lithology and environment
Primary lithology:shelly/skeletal wackestone
Secondary lithology:shelly/skeletal packstone
Lithology description: "...thick bedded oncoid-rich lithofacies..." From Ratcliffe (1991) (ref. 6688): facies composed of Lst beds 200-500 m thick, with little or no silty mudstone. Lst beds composed of oncoidal wackestones and packstones with occasional 30-50 mm thick beds of skeletal grainstone. Large algal bioherms occur.
Environment:marine indet.
Geology comments: "...deposited in low energy restricted mid-shelf setting. Oncoid morphologies indicate low energy conditions but in shallow water...shells scattered within beds, commonly disarticulated but unabraded...This combined with random distribution suggests bioturbation...supported by lack of depositional fabrics...abundance of algae in sediment...BA 2 likely."
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection excludes:some macrofossils
Reason for describing collection:paleoecologic analysis
Taxonomic list comments:Only brachiopods are studied thoroughly.
Metadata
Database number:23285
Authorizer:M. Foote Enterer:M. Foote
Modifier:M. Uhen Research group:marine invertebrate
Created:2002-07-11 12:03:34 Last modified:2018-11-26 18:22:06
Access level:the public Released:2002-07-11 12:03:34
Creative Commons license:CC BY
Reference information

Primary reference:
6676. K. T. Ratcliffe. 1999. Brachiopod assemblages from the Much Wenlock Limestone Formation of England and Wales. In A. J. Boucot and J. D. Lawson (eds.), Paleocommunities--a case study from the Silurian and Lower Devonian 399-407 [M. Foote/M. Foote/M. Foote]