Talagrouna type sect., Talagrouna Fmn. (Devonian of Libya)

Where: Libya (26.0° N, 10.5° E: paleocoordinates 48.0° S, 27.4° E)

• coordinate based on political unit

• local area-level geographic resolution

When: Talagrouna Formation, Late/Upper Frasnian (379.5 - 376.1 Ma)

• Formation rests unconformably on Lower Silurian rocks. Dated as Late Frasnian on basis of tentaculites.

• formation-level stratigraphic resolution

Environment/lithology: marine; siltstone and sandstone

• "a 20-25 m thick sequence of siltstones interbedded with quartzose sandstones"

Collection methods: Emphasis of monograph is brachiopods and bivalves. Other elements sometimes mentioned as well. I am combining elements that are said to belong to two distinct assemblages (there is also a "mixed" assemblage). It is not clear to what extent the assemblages are stratigraphically distinct.

Primary reference: M. Mergl and D. Massa. 1992. Devonian and Lower Carboniferous brachiopods and bivalves from western Libya. Biostratigraphie du Paleozoique 12:1-115 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 35637: authorized by Michael Foote, entered by Michael Foote on 01.01.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Pelecypoda
  -
Pelecypoda indet. Goldfuss 1820
Bivalvia
 Pectinida - Pterinopectinidae
Lyriopecten sp. Hall 1877 scallop
 Ostreida -
Pterioidea indet. Gray 1847 oyster
"smooth pectinids"
 Ostreida - Pterineidae
"Leiopteria sp." = Leptodesma (Leiopteria)
"Leiopteria sp." = Leptodesma (Leiopteria) Hall 1883 oyster
 Cardiidia - Sanguinolitidae
"Sphenotus serdelesensis" = Sanguinolites
"Sphenotus serdelesensis" = Sanguinolites clam
 Cardiidia - Grammysiidae
 Modiomorphida - Modiomorphidae
 Trigoniida - Eoschizodidae
? Eoschizodus sp. Cox 1951 clam
 Nuculida - Nuculidae
Nuculidae indet. Gray 1824 nut clam
 Protobranchia - Malletiidae
Nuculites sp. Conrad 1841 clam
Gastropoda
  -
Gastropoda indet. Cuvier 1797 snail
 Bellerophontida -
Bellerophontida indet. Ulrich and Scofield 1897 snail
Tentaculita
 Volynitida - Dicricoconidae
Hyolitha
  -
Hyolitha indet. Marek 1963
 Lophophorata -
Tentaculitida indet. Ljaschenko 1955
Strophomenata
 Productida - Productidae
 Productida -
"Chonetacea indet." = Chonetoidea
"Chonetacea indet." = Chonetoidea Bronn 1862
 Orthotetida - Schuchertellidae
Schuchertella sp. Girty 1904
Rhynchonellata
 Terebratulida - Rhipidiothyrididae
 Spiriferida - Cyrtospiriferidae
Cyrtospirifer "sp. B" Nalivkin 1924
 Rhynchonellida -
 Rhynchonellida - Trigonirhynchiidae