Macrocoelia subcommunity, Dinorthis community, Berwyn Hills (basal Cwm Rhiwarth) (Ordovician of the United Kingdom)

Also known as Was: Macrocoelia subcommunity of Dinorthis community, Berwyn Hills, Wales, UK

Where: England, United Kingdom (53.0° N, 3.0° W: paleocoordinates 52.2° S, 17.8° W)

• local area-level geographic resolution

When: Diplograptus multidens graptolite zone, Lower Member (Cwm Rhiwarth Formation), Soudleyan (458.4 - 457.2 Ma)

• Lowest part of Cwm Rhiwarth formation

• group of beds-level stratigraphic resolution

Environment/lithology: shoreface; lithified sandstone

• Nearshore; fine-grained sandstone

Size class: macrofossils

Preservation: cast

Primary reference: R. K. Pickerill and P. J. Brenchley. 1979. Caradoc marine benthic communities of the South Berwyn Hills, North Wales. Palaeontology 22:229-264 [A. Miller/P. Novack-Gottshall/J. Alroy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 3303: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 29.07.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Crinoidea
  -
Crinoidea "ossicles" Miller 1821 Sea lily
Trilobita
 Asaphida - Asaphidae
"Parabasilicus powisi" = Basilicus
"Parabasilicus powisi" = Basilicus trilobite
 Trinucleida - Trinucleidae
Broeggerolithus broeggeri Bancroft 1929 trilobite
 Phacopida - Calymenidae
Flexicalymene (Reacalymene) limba Shirley 1936 trilobite
 Phacopida - Homalonotidae
Brongniartella minor Salter 1852 trilobite
Ostracoda
 Palaeocopida - Tetradellidae
Strophomenata
 Strophomenida - Sowerbyellidae
Sowerbyella sp. Jones 1928
Eoplectodonta sp. Kozlowski 1929
x
 Strophomenida - Strophomenidae
Strophomena sp. Rafinesque and De Blainville 1824
x
 Strophomenida - Rafinesquinidae
"Macrocoelia sp." = Colaptomena Cooper 1956
x
Kiaeromena sp. Spjeldnaes 1957
x
Kjerulfina sp. Bancroft 1929
x
Leptaena sp. Dalman 1828
x
 Orthotetida - Triplesiidae
Rhynchonellata
 Orthida - Harknessellidae
Reuschella horderleyensis Bancroft 1929
was Pteriaceidae indet.
 Orthida - Dalmanellidae
Onniella sp. Bancroft 1928
x
Howellites sp. Bancroft 1945
Dalmanella sp. Hall and Clarke 1892
 Orthida - Plaesiomyidae
Dinorthis berwynensis Whittington 1938
 Rhynchonellida - Trigonirhynchiidae
Craniata
 Craniopsida - Craniopsidae
Paracraniops sp. Williams 1963
Bryozoa
  -
Bryozoa "stick indet." Ehrenberg 1831
Cephalopoda
 Orthocerida - Orthoceratidae
Orthoceras sp. Breynius 1832
Gastropoda
 Murchisoniina - Lophospiridae
Lophospira sp. Whitfield 1886 snail
Tergomya
 Cyrtonellida - Cyrtolitidae
Cyrtolites sp. Conrad 1838
Bivalvia
 Myalinida - Ambonychiidae
Psilonychia sp. Ulrich 1893 clam
x