Idri Fmn., Idri Type section, Samples PC700, TB887, TB889, TB890 (Devonian of Libya)

Where: Libya (27.5° N, 13.5° E: paleocoordinates 51.0° S, 38.1° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Idri Formation, Late/Upper Givetian (388.1 - 383.7 Ma)

• Age range of formation is Givetian to early Frasnian. This assemblage, from the middle of the formation, is thought to be late Givetian.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; fine-grained, shelly/skeletal sandstone

• Interpreted as BA 2.
• "coquinite beds in fine grained sandstones"

Collection methods: Emphasis of monograph is brachiopods and bivalves. Other elements sometimes mentioned as well.

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 35628: authorized by Michael Foote, entered by Michael Foote on 01.01.2004, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Bellerophontida -
Bellerophontoidea indet. M'Coy 1851 snail
 Bellerophontida - Plectonotidae
Plectonotus sp. Clarke 1899 snail
 Streptoneura -
Archaeogastropoda indet. Thiele 1925 snail
"type types of mourloniid gastropods"
Bivalvia
 Pectinida - Pterinopectinidae
Lyriopecten sp. Hall 1877 scallop
 Ostreida - Pterineidae
Leptodesma sp. Hall 1883 oyster
 Modiomorphida - Modiomorphidae
Spathella sp. Hall 1885 clam
Goniophora sp. Phillips 1848 clam
Rhynchonellata
 Rhynchonellida - Trigonirhynchiidae
 Rhynchonellida - Leiorhynchidae
  - Tropidoleptidae
 Spiriferida - Mucrospiriferidae
Trilobita
 Phacopida - Homalonotidae
Dipleura sp. Green 1832 trilobite