Lower Flaxley Beds at May Hill inlier (Silurian to of the United Kingdom)

Where: Wales, United Kingdom (52.0° N, 2.0° W: paleocoordinates 26.1° S, 11.8° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Lower Flaxley Beds Formation, Ludlow to Ludlow (427.4 - 421.3 Ma)

• Listed as Ludlovian/Eltonian

• formation-level stratigraphic resolution

Environment/lithology: offshore shelf; lithified, calcareous mudstone and lithified limestone

• Pale olive, poorly-bedded, calcareous mudstone, with occasional thin limestone interbeds.

Size classes: macrofossils, mesofossils

Primary reference: J. D. Lawson. 1955. The geology of the May Hill Inlier. Quarterly Journal of the Geological Society of London 111:85-116 [P. Novack-Gottshall/P. Novack-Gottshall]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 74672: authorized by Phil Novack-Gottshall, entered by Phil Novack-Gottshall on 23.08.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Crinoidea
  -
Crinoidea indet.
Crinoidea indet. Miller 1821 Sea lily
"Common", columnals
Pterobranchia
 Graptoloidea -
"? Monograptus uncinatus" = Uncinatograptus uncinatus
"? Monograptus uncinatus" = Uncinatograptus uncinatus Tullberg 1883 graptolite
"Present"
Lingulata
 Lingulida - Lingulidae
Lingula lewisii
Lingula lewisii
"Present"
Craniata
 Craniopsida - Craniopsidae
Craniops (Pholidops) implicata
Strophomenata
 Strophomenida - Chonetidae
Chonetes lepismus
 Strophomenida - Aegiromenidae
Chonetoidea grayi
 Strophomenida - Strophonellidae
"Strophonella euglypha" = Strophoprion euglypha
"Strophonella euglypha" = Strophoprion euglypha Dalman 1828
"Present"
 Strophomenida - Leptostrophiidae
"Leptostrophia filosa" = Mesoleptostrophia filosa
"Leptostrophia filosa" = Mesoleptostrophia filosa Sowerby 1839
"Present"
 Strophomenida - Amphistrophiidae
"Strophonella funiculata" = Amphistrophiella funiculata
"Strophonella funiculata" = Amphistrophiella funiculata M'Coy 1846
"Present"
Rhynchonellata
 Spiriferida - Delthyrididae
Delthyris elegans
Delthyris elegans Muir-Wood 1925
"Common"
 Atrypida - Atrypidae
Atrypa reticularis
Atrypa reticularis Linnaeus 1758
"Common"
 Protorthida - Skenidiidae
Skenidioides lewisii
Skenidioides lewisii Davidson 1848
"Present"
 Orthida - Dicoelosiidae
Dicoelosia (Bilobites) biloba
Dicoelosia (Bilobites) biloba Linnaeus 1758
"Fairly common"
 Orthida - Dalmanellidae
"Parmorthis cf. elegantula" = Resserella
"Parmorthis cf. elegantula" = Resserella
"Common"
Bryozoa
  -
Bryozoa indet.
Bryozoa indet. Ehrenberg 1831
"Polyzoan""Present"
Cephalopoda
 Orthocerida - Kionoceratidae
Kionoceras angulatum
Ostracoda
 Palaeocopida - Beyrichiidae
Beyrichia maccoyana
Beyrichia maccoyana ostracod
"Common"
Trilobita
 Proetida - Proetidae
Proetus sp.
Proetus sp. Steininger 1831 trilobite
"Present"
 Phacopida - Calymenidae
Calymene sp.
Calymene sp. Brongniart 1822 trilobite
"Present"
 Phacopida - Dalmanitidae
Dalmanites vulgaris
Dalmanites vulgaris trilobite
"Fairly common"
 Odontopleurida - Odontopleuridae
Leonaspis angulatum
Leonaspis angulatum trilobite
"Present"