Valancia de Alcántara (Ordovician of Spain)

Where: Caceres, Spain (39.4° N, 7.2° W: paleocoordinates 75.3° S, 69.0° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Svobodaina havliceki brachiopod zone, Calymenella Quartzite Formation, Berounian (457.9 - 449.8 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: shoreface; lithified sandstone

• Coarse-grained, quartzitic sandstone

Size class: macrofossils

Preservation: cast, mold/impression

Primary reference: W. Hammann and J. L. Henry. 1978. Quelques especes de Calymenella, Eohomalonotus et Kerfornella (Trilobita, Ptychopariida) de l'Ordovicien du Massif Armoricain et de la Peninsule Iberique. Senckenbergiana Lethaea 59(4-6):401-429 [A. Miller/P. Novack-Gottshall/P. Novack-Gottshall]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 20885: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 12.06.2002, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

• Primarily trilobite taxonomy and biostratigraphy
Rhynchonellata
 Orthida - Draboviidae
Drabovinella erratica Davidson 1869
Drabovia "sp. 2" Havlicek 1950
Trilobita
 Phacopida - Acastidae
 Phacopida - Homalonotidae
Plaesiacomia aff. rara Hawle and Corda 1847 trilobite
Plaesiacomia nov. sp. aff. rara
Calymenella alcantarae Hammann and Henry 1978 trilobite