Gualcamayo River Creek section, Las Plantas (Ordovician of Argentina)

Where: Argentina (29.8° S, 68.6° W: paleocoordinates 35.0° S, 132.9° W)

• coordinate stated in text

• local area-level geographic resolution

When: Climacograptus bicornis graptolite zone, Las Plantas Formation, Sandbian (458.4 - 453.0 Ma)

• formation-level stratigraphic resolution

Environment/lithology: deep subtidal; mudstone and peloidal grainstone

• Platy hemipelagic mudstones, peloidal calcisiltites, and rare black shales

•representing autochthonous facies associations. Facies and architectural studies reveal that the Las Plantas Formation is a minor localized fine grained shallower facies surrounded by conglomerates

Size classes: mesofossils, microfossils

Primary reference: A. Ernst and M. Carrera. 2012. Upper Ordovician (Sandbian) Bryozoan Fauna from Argentine Precordillera. Journal of Paleontology 86(5):721-752 [W. Kiessling/M. Krause]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 144790: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 17.05.2013, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Rhynchonellata
 Orthida - Plaesiomyidae
Campylorthis gualcamayensis n. sp.
 Orthida - Heterorthidae
Tissintia robusta n. sp.
 Orthida - Draboviidae
Oanduporella alamensis n. sp.
Strophomenata
 Strophomenida - Leptellinidae
Anchoramena cristata n. gen. n. sp.
Anchoramena cristata n. gen. n. sp. Benedetto 1995
 Strophomenida - Sowerbyellidae
Sowerbyella (Sowerbyella) cf. sericea
 Orthotetida - Triplesiidae
Bicuspina deflecta n. sp., Bicuspina riojana n. sp.
Stenolaemata
 Trepostomata -
Trepostomata indet.
Trepostomata indet. Ulrich 1882
 Trepostomata - Batostomellidae
Bythopora dendrina
 Trepostomata - Heterotrypidae
Dekayia sp.
Dekayia sp. Milne-Edwards and Haime 1851
 Trepostomata - Halloporidae
Parvohallopora parvula, Tarphophragma aff. multitabulata, Hallopora sp.
Hallopora sp. Bassler 1911
 Trepostomata - Trematoporidae
Batostoma lanensis, Batostoma sheldonensis
 Cystoporata - Constellariidae
Constellaria varia
Constellaria varia Ulrich 1893
 Cystoporata - Ceramoporidae
Ceramoporidae indet.
 Cyclostomata - Diploclemidae
Diploclema trentonense
 Fenestrata - Chasmatoporidae
Enallopora exigua
 Trepostomida - Monticuliporidae
Homotrypa obliqua, Prasopora argentina
 Cryptostomata - Stictoporellidae
Argentinodictya lenticulata
 Cryptostomata - Rhinidictyidae
Trigonodictya cirrita, Trigonodictya parvula
 Cryptostomata - Ptilodictyidae
Ptilodictya intermedia
  - Phylloporinidae
Chasmatopora rossae
Oepikinidae
  - Oepikinidae
Oepikoides notus n. gen. n. sp.
Oepikoides notus n. gen. n. sp.