FB-IV. Peña del Tormo. 35 meters (Ordovician to of Spain)

Also known as Locality 1. 1 km west of the village of Fombuena. F4 locality (Peña del Tormo section) of Villas (1985)

Where: Zaragoza, Spain (41.1° N, 1.2° W: paleocoordinates 72.6° S, 84.0° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Svobodaina armoricana brachiopod zone, Huerva Member (Fombuena Formation), Berounian to Berounian (460.9 - 455.8 Ma)

• bed-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; lithified, argillaceous sandstone

• 30 cm thick sandstone bed.

Size classes: macrofossils, mesofossils

• During the deposition of this bed, the brachiopod shells did not suffer size sorting or fragmentation but were disarticulated. Trilobite exoskeletons and pelmatozoan calyces and columns also underwent disarticulation, and their remains occur beside abundant fragments of more fragile finely branched bryozoans. Despite this general disarticulation, deposition of the enclosing sand seems to have been very rapid, as the occurrence of complete crinoid crowns with finely branched arms suggests. Most fossil remains in this horizon, apart from the crinoid crowns, have probably been transported.

Preservation: cast

Primary reference: E. Villas. 1992. New Caradoc brachiopods from the Iberian Chains (northeastern Spain) and their stratigraphic significance. Journal of Paleontology 66(5):772-793 [A. Miller/P. Novack-Gottshall/P. Novack-Gottshall]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 166732: authorized by Pete Wagner, entered by Pete Wagner on 24.02.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

• Primarily articulate brachiopod taxonomy with others listed for biostrat.
Strophomenata
 Orthotetida - Triplesiidae
Triplesia iberica Villas 1985
 Strophomenida - Rafinesquinidae
Rhynchonellata
 Orthida - Giraldiellidae
Gelidorthis carlsi Villas 1992
 Orthida - Heterorthidae
Svobodaina armoricana Babin and Mélou 1972
 Orthida - Dalmanellidae
Dalmanella unguis Sowerby and Murchison 1839
 Orthida - Draboviidae
Drabovia "sp. 1" Havlicek 1950
Crinoidea
 Diplobathrida - Anthracocrinidae
Goyacrinus gutierrezi n. gen. n. sp., Dalicrinus hammanni n. gen. n. sp., Fombuenacrinus nodulus n. gen. n. sp.
Goyacrinus gutierrezi n. gen. n. sp. Cole et al. 2017 Sea lily
Dalicrinus hammanni n. gen. n. sp. Cole et al. 2017 Sea lily
Fombuenacrinus nodulus n. gen. n. sp. Cole et al. 2017 Sea lily