Tejra Quarry, Medenine, Unit 3 (Triassic of Tunisia)

Where: Tunisia (33.4° N, 10.4° E: paleocoordinates 3.0° S, 15.2° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Kirchaou Formation, Fassanian (242.0 - 235.0 Ma)

• Compared to the local Kirchaou Formation (Soussi et al. 2017)

• group of beds-level stratigraphic resolution

Environment/lithology: marginal marine; claystone and sandstone

• "The third unit (Unit 3) is about 30 thick. It is composed mainly of reddish-brownish siltstones and claystones. Fossils of this unit are mainly represented by conchostracans, lingulids, and a horseshoe crab. It is worth noting the presence of a sandstone marker bed in the middle part of this unit showing bears numerous invertebrate trace fossils at its base." (Soussi et al. 2017)

Size class: macrofossils

Collection methods: Repository: Institute of Paleobiology of Polish Academy of Sciences (ZPAL), V.46

Primary reference: M. Soussi, G. Niedźwiedzki, M. Tałanda, D. Dróżdż, T. Sulej, K. Boukhalfa, J. Mermer and B. Błażejowski. 2017. Middle Triassic (Anisian-Ladinian) Tejra red beds and Late Triassic (Carnian) carbonate sedimentary records of southern Tunisia, Saharan Platform: Biostratigraphy, sedimentology and implication on regional stratigraphic correlations. Marine and Petroleum Geology 79:222-256 [A. Dunhill/B. Allen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 203924: authorized by Alex Dunhill, entered by Bethany Allen on 28.08.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Xiphosura
 Xiphosurida - Limulidae
Limulitella sp.
Limulitella sp. Størmer 1952 horseshoe crab
Branchiopoda
 Diplostraca -
Conchostraca indet.
Conchostraca indet. Sars 1867 clam shrimp
Lingulata
 Lingulida - Lingulidae
Lingularia sp.
Lingularia sp. Biernat and Emig 1993
Bivalvia
 Pectinida - Hunanopectinidae
Leptochondria cf. curtocardinalis
Leptochondria cf. curtocardinalis Hall and Whitfield 1877 scallop