Lower Dobrotivian diamictite beds, Aragoncillo (Ordovician of Spain)

Where: Guadalajara, Spain (40.9° N, 2.1° W: paleocoordinates 72.2° S, 86.4° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Gymnograptus linnarssoni graptolite zone, Villar del Salz Formation, Dobrotivian (460.9 - 457.5 Ma)

• Overlies Armorican Quartzite. Underlies San Marcos. Graptolite zone not given, but lower Dobrotivian should be Gymnograptus linnarssoni.

• group of beds-level stratigraphic resolution

Environment/lithology: offshore; lithified shale and siltstone

• shale & siltstone

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, I. 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. Novack-Gottshall]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 194899: authorized by Pete Wagner, entered by Pete Wagner on 06.07.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

• Bivalve taxonomy
unclassified
  -
Trilobita
 Corynexochida - Illaenidae
Ectillaenus sp. Salter 1867 trilobite
 Phacopida - Dalmanitidae
Morgatia hupei Nion and Henry 1967 trilobite
Eodalmanitina sp. Richter 1964 trilobite
 Phacopida - Pliomeridae
"Placoparia (Coplacoparia) tourneminei" = Placoparia (Coplacoparia) tournemini
"Placoparia (Coplacoparia) tourneminei" = Placoparia (Coplacoparia) tournemini Rouault 1847 trilobite
Rouault
 Phacopida - Homalonotidae
Colpocoryphe rouaulti Henry 1970 trilobite
Henry
Eohomalonotus sdzuyi Hammann and Henry 1978 trilobite
Hammann and Henry (only found in sandstones
 Phacopida - Calymenidae
Neseuretus tristani Brongniart and Desmarest 1817 trilobite
Ostracoda
 Beyrichiacea - Tetradellidae
Tetradellidae indet. Swartz 1936 ostracod
 Palaeocopida -
Panderia beaumonti ostracod
(Rouault
Hyolitha
 Hyolithida -
Strophomenata
 Strophomenida - Aegiromenidae
Aegiromena mariana Chauvel et al. 1969
Rhynchonellata
 Orthida - Platyorthidae
 Orthida - Heterorthidae
 Orthida - Plectorthidae
Polychaeta
  -
Arachnostega gastrochaenae Bertling 1992
Bertling
Rostroconchia
 Ribeirioida - Technophoridae
Bivalvia
 Modiomorphida - Modiomorphidae
 Nuculida - Praenuculidae
Praenucula costae Sharpe 1853 clam
 Nuculida - Cardiolariidae
Cardiolaria beirensis Sharpe 1853 clam
Gastropoda
 Bellerophontida - Sinuitidae
Sinuites sp. Koken 1896 snail
 Bellerophontida - Tropidodiscidae
"Tropidodiscus pusillus" = Peruniscus pusillus
"Tropidodiscus pusillus" = Peruniscus pusillus Perner 1903 snail
 Murchisoniina - Eotomariidae
Ptychonema cf. bussacensis Sharpe 1853 snail
unclassified
  -
Pelmatozoa "columnals" Leuckart 1848
Stylophora
 Mitrata - Kirkocystidae
Anatifopsis ancora
Dominguez and Gutierrez Marco
Diploporita
 Aristocystitoida - Aristocystitidae
Calix rouaulti Chauvel 1936
Chauvel
 Ichnofossils -
Planolites sp. Nicholson 1873
Tisoa sp. de Serres 1840
Chondrites sp. von Sternberg 1833