Lomas Chatas, 3rd fossiliferous horizon, Mojon de Hierro Formation, Chubut (Carboniferous to of Argentina)

Where: Argentina (44.2° S, 70.3° W: paleocoordinates 57.2° S, 82.1° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Costatumulus amosi brachiopod zone, Mojon de Hierro Formation (Tepuel Group), Bashkirian to Bashkirian (323.2 - 307.0 Ma)

• 3rd fossiliferous horizon. Costatumulus amosi zone.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified sandstone and lithified conglomerate

• The Mojon de Hierro Formation consists of sandstones with some conglomerates and black shales.

Size class: macrofossils

Preservation: cast

Primary reference: C. R. Gonzalez. 2006. Lower Permian bivalves from central Patagonia, Argentina. Paläontologische Zeitschrift 80(2):130-155 [W. Kiessling/U. Merkel/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 64620: authorized by Wolfgang Kiessling, entered by Uta Merkel on 11.09.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Scyphozoa
 Conulariida - Conulariidae
Crinoidea
  -
Crinoidea indet. Miller 1821 Sea lily
Gastropoda
 Euomphalina - Euomphalidae
Straparollus sp. de Montfort 1810 snail
 Euomphalina -
Neoplatyteichum sp. Maxwell 1964 snail
Bivalvia
 Trigoniida - Schizodidae
Schizodus sp. King 1844 clam
 Cardiidia - Sanguinolitidae
 Pectinida - Heteropectinidae
Cephalopoda
 Nautiloidea -
Sueroceras sp. Riccardi and Sabattini 1975 nautiloid
Strophomenata
 Productida - Monticuliferidae
Costatumulus amosi Taboada 1998
 Strophomenida - Chonetidae
Chonetes sp. Fischer de Waldheim 1830
 Strophomenida - Anopliidae
? Tornquistia sp. Paeckelmann 1930
Rhynchonellata
 Spiriferinida - Syringothyrididae
 Spiriferida - Trigonotretidae
 Spiriferida - Cyrtospiriferidae
Cyrtospirifer sp. Nalivkin 1924
 Spiriferida - Ambocoeliidae
Stenolaemata
 Cryptostomata - Acanthocladiidae