Gasworks #1 (Silurian of the United Kingdom)

Where: Wales, United Kingdom (51.8° N, 5.0° W: paleocoordinates 36.9° S, 17.9° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Rhuddanian (443.4 - 440.8 Ma)

• "Top of Gasworks Mudstones [member of Haverford Mudstone Fm.] or bottom of Gasworks Sandstones Fm."

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, sandy siltstone

• Preservation seems to be external molds.

Primary reference: S. K. Donovan. 1993. A Rhuddanian (Silurian, Lower Llandovery) pelmatozoan fauna from south-west Wales. Geological Journal 28:1-19 [J. Alroy/M. Sommers/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 3479: authorized by John Alroy, entered by Mike Sommers on 02.08.1999, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

• Crinoids (pelmatozoans) only.
Show authors, comments, and common names
unclassified
  -
Floricolumnus cf. girvanensis, Mastopoda fava1
Floricolumnus cf. girvanensis
"Floricolumnus (col.) sp. cf. F. girvanensis" - originally entered as "Floricolumnus cf. girvanensis"
Gastropoda
 Bellerophontida - Bucaniidae
Kokenospira credibilis n. sp.2
Kokenospira credibilis n. sp.2 Reed 1921 snail
 Bellerophontida - Bellerophontidae
Cymbularia turnbulli2
Cymbularia turnbulli2 Reed 1921 snail
Strophomenata
 Strophomenida - Leptestiidae
Leangella scissa1
Leangella scissa1 Davidson 1871
 Strophomenida - Sowerbyellidae
"Eoplectodonta duplicata" = Eoplectodonta (Eoplectodonta) duplicata1
"Eoplectodonta duplicata" = Eoplectodonta (Eoplectodonta) duplicata1 de Sowerby and Murchison 1839
 Strophomenida - Eopholidostrophiidae
Eopholidostrophia sefinensis1
Eopholidostrophia sefinensis1 Williams 1951
Eopholidostrophia sefinensis ellisae
 Strophomenida - Strophonellidae
Eostrophonella eothen1
Eostrophonella eothen1 Williams 1951
Rhynchonellata
 Orthida - Hesperorthidae
Schizonema sowerbyiana1
 Orthida - Dalmanellidae
"Resserella llandoveriana" = Levenea llandoveriana1
"Resserella llandoveriana" = Levenea llandoveriana1 Williams 1951
Stenolaemata
 Trepostomata - Halloporidae
Hallopora sp.1
Hallopora sp.1 Bassler 1911
Lophophorata
 Tentaculitida - Tentaculitidae
Tentaculites sp.1
Tentaculites sp.1 von Schlotheim 1820
Trilobita
 Phacopida - Calymenidae
"Calymene crassa" = Dekalymene crassa1
"Calymene crassa" = Dekalymene crassa1 Shirley 1936 trilobite
 Odontopleurida - Odontopleuridae
? Leonaspis sp.1
? Leonaspis sp.1 Richter and Richter 1917 trilobite
 Rhombifera - Cheirocrinidae
? Homocystites sp.
? Homocystites sp. Barrande 1887
originally entered as "? Homocystites sp."
Crinoidea
  -
Crinoidea indet.
Crinoidea indet. Miller 1821 Sea lily
crinoid indet. sp. A
 Monobathrida - Patelliocrinidae
? Macrostylocrinus sp.
? Macrostylocrinus sp. Sea lily
originally entered as "? Macrostylocrinus sp."
 Diplobathrida - Rhodocrinitidae
Chaosocrinus ornatus
Chaosocrinus ornatus Sea lily
sp. nov.
 Calceocrinida - Calceocrinidae
Calceocrinidae indet., Calceocrinus sp., Calceocrinus turnbulli
Calceocrinidae indet. Meek and Worthen 1869 Sea lily
calceocrinid arms
Calceocrinus sp. Hall 1852 Sea lily
Calceocrinus turnbulli Sea lily
sp. nov.
 Dendrocrinida - Dendrocrinidae
? Dendrocrinus gasworksensis
? Dendrocrinus gasworksensis Sea lily
sp. nov. - originally entered as "? Dendrocrinus gasworksensis"
1Cocks and Price 1975; 2Reed 1921