Middle Berounian alternating shale & sandstone beds, Collado de la Plata massif (Ordovician of Spain)

Where: Guadalajara, Spain (40.3° N, 1.3° W: paleocoordinates 72.5° S, 89.0° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Oepikograptus bekkeri graptolite zone, Bronchales Formation, Dobrotivian (459.0 - 457.9 Ma)

• Bronchales is an informal name for beds bewteen the Villar del Salz formation and the Ojos Negros formation. It is Upper Berounian.

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; lithified shale and sandstone

• Shales and alternating shales & sandstones.

Size class: macrofossils

Preservation: mold/impression

Primary reference: P. Herranz Araújo, J. C. Gutiérrez–Marco, A. P. Pieren Pidal, M. Robardet, M. A. San José Lancha, I. Rábano, and G. N. Sarmiento. 2003. The Ordovician succession from the western Iberian Ranges (NE Spain): a review with new data. In G. L. Albanesi, M. S. Beresi, S. H. Peralta (eds.), Ordovician from the Andes 17:417-424 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 194904: authorized by Pete Wagner, entered by Pete Wagner on 06.07.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

• Bivalve taxonomy
Pterobranchia
  - Cyclograptidae
Rhombifera
 Rhombifera -
 Sphaeronitida - Aristocystitidae
Calix cf. gutierrezi
Chauvel and Melendéz
Blastoidea
 Coronata - Stephanocrinidae
Mespilocystites lemenni Gutiérrez-Marco et al. 1996 blastoid
Gutierréz-Marco
Gastropoda
 Euomphalina - Holopeidae
? Holopea antiquata Perner 1903 snail
Stenolaemata
 Trepostomata -
Trepostomata indet. Ulrich 1882
 Cryptostomata -
Rhynchonellata
 Orthida - Heterorthidae
Svobodaina armoricana Babin and Mélou 1972
Babin and Mélou
Trilobita
 Corynexochida - Illaenidae
"Zetillaenus ibericus" = Vysocania iberica
"Zetillaenus ibericus" = Vysocania iberica Hammann 1976 trilobite
Hammann
 Phacopida - Calymenidae
Prionocheilus cf. almelai trilobite
Hammann