Tejra Quarry, Medenine, Unit 2 (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 second unit (Unit 2) is about 40 m thick. It is clayey dominated but contains numerous sandstone interbeds of different thickness containing well sorted and rounded quartz grains. It starts with two thick layers of medium size grained reddish sandstone interbedded by 2 m thick reddish claystone particularly rich with marine bivalves, microconchids, gastropods and lingulids. All collected vertebrate remains (fish and temnospondyl amphibian) came from this part of the section." (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 203923: 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
Actinopteri
 Actinopterygia -
"Actinopterygia indet." = Actinopteri
"Actinopterygia indet." = Actinopteri Cope 1871
scales
Amphibia
 Temnospondyli -
Temnospondyli indet.
Temnospondyli indet. tetrapod
left clavicle
Lingulata
 Lingulida - Lingulidae
Lingularia sp.
Lingularia sp. Biernat and Emig 1993
Tentaculita
 Microconchida -
Microconchida indet., Microconchus sp.
Microconchus sp. Murchison 1839
Gastropoda
  -
Gastropoda indet.
Gastropoda indet. Cuvier 1795 snail
Bivalvia
  -
Bivalvia indet.
Bivalvia indet. Linnaeus 1758 clam
 Trigoniida - Myophoriidae
Neoschizodus sp.
Neoschizodus sp. Giebel 1855 clam
 Cardiida - Anthracosiidae
Unionites cf. brevis
Unionites cf. brevis von Schauroth 1857 clam
 Pectinida - Aviculopectinidae
"Eumorphotis cf. beneckei" = Neomorphotis comta
"Eumorphotis cf. beneckei" = Neomorphotis comta Goldfuss 1863 scallop
 Myalinida - Mysidiellidae
Promysidiella sp.
Promysidiella sp. Waller and Stanley 2005 clam