Asturian coast, El Castro Fm. (Viodo Limestone Mbr.), Asturias, Spain (Silurian of Spain)

Where: Asturias, Spain (43.6° N, 5.8° W: paleocoordinates 69.7° S, 49.0° E)

• coordinate based on nearby landmark

When: Viodo Limestone Member (El Castro Formation), Telychian (438.5 - 433.4 Ma)

• From the intermediate volcaniclastic horizon 7 m above the top of the lower massive limestone.

Environment/lithology: offshore shelf; calcareous siltstone

• fine grained calcareous tuff, "represents the middle stages of that transgressive episode [b/w a shallow water LS below and a deeper water LS above]"

Primary reference: E. Villas and L. R. M. Cocks. 1996. The first early Silurian brachiopod fauna from the Iberian Peninsula. Journal of Paleontology 70(4):571-588 [J. Alroy/M. Sommers/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 717: authorized by John Alroy, entered by Mike Sommers on 25.02.1999, edited by Mark Uhen

Creative Commons license: CC BY (attribution)

Taxonomic list

• essentially brachiopods only; reported % are for brachs only.
Anthozoa
 Tabulata -
Tabulata indet. tabulate coral
cateniform and discoidal tabulate corals
 Stauriida - Streptelasmatidae
Streptelasmatidae indet. Nicholson 1889 horn coral
streptelasmatid corals
Stenolaemata
 Trepostomata -
Trepostomata "indet. dome shaped" Ulrich 1882
dome shaped trep. resembling Monotrypa
Trepostomata indet. Ulrich 1882
trepostome
 Cryptostomata - Ptilodictyidae
Ptilodictya sp. Lonsdale 1839
Rhynchonellata
 Pentamerida - Stricklandiidae
Stricklandia aff. laevis
the last 6 taxa combined represent 10% of specimens (10/6 ~= 1.7) - originally entered as "Stricklandia aff. laevis"
 Athyridida - Hyattidinidae
? Hyattidina sp. Schuchert 1913
the last 6 taxa combined represent 10% of specimens (10/6 ~= 1.7) - originally entered as "? Hyattidina sp."
 Rhynchonellida - Leiorhynchidae
? Fenestrirostra viodoensis
originally entered as "? Fenestrirostra viodoensis"
 Rhynchonellida - Rhynchotrematidae
 Orthida - Rhipidomellidae
 Orthida - Dalmanellidae
? Isorthis sp. Kozlowski 1929
the last 6 taxa combined represent 10% of specimens (10/6 ~= 1.7) - originally entered as "? Isorthis sp."
 Orthida - Cathaysiorthidae
Asturorthis sarreoensis n. gen. n. sp.
Asturorthis sarreoensis n. gen. n. sp. Villas and Cocks 1996
 Spiriferida - Cyrtiidae
Eospirifer cf. radiatus Sowerby 1834
the last 6 taxa combined represent 10% of specimens (10/6 ~= 1.7) - originally entered as "Eospirifer cf. radiatus"
 Atrypida - Atrypinidae
Eospirigerina sp. Schuchert and Cooper 1930
originally entered as "Eospiringea"
Strophomenata
 Strophomenida - Leptostrophiidae
Viodostrophia alcaldei
(new genus and species)
Eostropheodonta sp. Bancroft 1949
the last 6 taxa combined represent 10% of specimens (10/6 ~= 1.7)
 Strophomenida - Furcitellidae
 Strophomenida - Rafinesquinidae
Leptaena sp. Dalman 1828
the last 6 taxa combined represent 10% of specimens (10/6 ~= 1.7)
Deuteropoda
  -
Ostracoda indet. Latreille 1802 ostracod
Trilobita
  -
Trilobita indet. Walch 1771 trilobite
harpid and odontopleurid trilobite elements, disarticulated
 Odontopleurida - Odontopleuridae
Leonaspis sp. Richter and Richter 1917 trilobite