Cryptothyrella-'Heterorthella' Community, Argentina (Silurian of Argentina)

Where: Argentina (24.0° S, 67.0° W: paleocoordinates 40.5° S, 131.8° W)

When: Salar del Rincon Formation, Llandovery (443.4 - 433.4 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; hematitic, green, yellow, argillaceous sandstone

• "The enclosing strata are medium-grained sandstones. Disarticulated shells indicate moderate turbulence, wherease articulated shells at other localities indicate quiet conditions. BA 2."
• see PBDB coll. 2866

Collection methods: Most of the taxa already entered in PBDB coll. 2866; two genera added here.

Primary reference: A. J. Boucot, J. L. Benedetto, Y. Grahn, J. H. G. Melo, T. M. Sanchez and B. A. Waisfeld. 1999. South American marine Silurian communities. In A. J. Boucot and J. D. Lawson (eds.), Paleocommunities--a case study from the Silurian and Lower Devonian 841-848 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 25072: authorized by Michael Foote, entered by Michael Foote on 27.08.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Trilobita
 Phacopida - Homalonotidae
Homalonotidae indet.
Homalonotidae indet. Chapman 1890 trilobite
Bivalvia
 Modiomorphida - Modiomorphidae
Modiomorpha sp.
Modiomorpha sp. Hall and Whitfield 1869 clam
Gastropoda
 Bellerophontida - Plectonotidae
Plectonotus sp.
Plectonotus sp. Clarke 1899 snail
 Lophophorata -
Tentaculitida indet.
Tentaculitida indet. Ljaschenko 1955
Rhynchonellata
 Athyridida - Meristellidae
"Cryptothyrella cf. crassa" = Hindella crassa
"Cryptothyrella cf. crassa" = Hindella crassa Sowerby 1839
 Orthida - Rhipidomellidae
Mendacella sp.
Mendacella sp. Cooper 1930
 Orthida - Dalmanellidae
Dalmanella sp.
Dalmanella sp. Hall and Clarke 1892
Strophomenata
 Orthotetida - Chilidiopsidae
Fardenia filistriata
Fardenia filistriata Boucot et al. 1972
Pterobranchia
 Graptoloidea - Monograptidae
Monograptidae indet.
Monograptidae indet. Lapworth 1873 graptolite