Where: Tunisia (36.5° N, 10.1° E: paleocoordinates 24.8° N, 11.9° E)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Oust Formation, Jamesoni to Jamesoni (189.6 - 183.0 Ma)
• Irregular bed forming pockets of crinoidal biosparite.
• bed-level stratigraphic resolution
Environment/lithology: open shallow subtidal; lithified, shelly/skeletal grainstone
Size class: macrofossils
Collection methods: Repository: Service de la Carte Géologiue de Tunisie
Primary reference: M. Rakús and J. Guex. 2002. Les ammonites du jurassique inférieur et moyen de la dorsal tunisienne. Mémoires de Géologie (Lausanne) 39:1-149 [M. Clapham/M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 170511: authorized by Matthew Clapham, entered by Matthew Clapham on 22.06.2015
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
Juraphyllites sp. Müller 1939 ammonite | |
Castanyiceras parvulum Rakús and Guex 2002 ammonite
Galaticeras aegoceroides Gemmellaro 1884 ammonite
"Castanyiceras canavarii" = Galaticeras canavarii Fucini 1899 ammonite | |
Rhynchonellata | |
Homoeorhynchia cf. acuta Sowerby 1816
Cuneirhynchia dalmasi Dumortier 1869 | |
Pisirhynchia inversa Oppel 1861 | |
Spiriferina rostrata Zieten 1830 | |
Linguithyris aspasia Zittel 1869 | |
Cincta numismalis Lamarck 1819
Zeilleria subnumismalis Davidson 1851 |