JT1 (Cretaceous of Morocco)

Where: Western High Atlas, Morocco (31.2° N, 7.9° W: paleocoordinates 23.2° N, 2.2° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Tadhart Formation, Aptian (125.0 - 113.0 Ma)

• formation-level stratigraphic resolution

Environment/lithology: lime mudstone

• includes whitish marls and yellow wavy-bedded micritic limestones

Primary reference: J. Rey, J. Canerot, B. Peybernes, K. Tal-Eddine, and J.-P. Thieuloy. 1988. Lithostratigraphy, biostratigraphy and sedimentary dynamics of the Lower Cretaceous deposits on the northern side of the western High Atlas (Morocco). Cretaceous Research 9(2):141-158 [M. Patzkowsky/K. Layou/A. Clement]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 2070: authorized by Mark Patzkowsky, entered by Karen Layou on 21.06.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Cephalopoda
 Ammonitida - Ancyloceratidae
Tropaeum sp. Sowerby 1837 ammonite
Australiceras sp. Whitehouse 1926 ammonite
 Ammonitida - Douvilleiceratidae
Cheloniceras sp. Hyatt 1903 ammonite
cf. Cheloniceras subnodosocostatum Sinzow 1906 ammonite
originally entered as "Cheloniceras cf. subnodosocostatum"
 Ammonitida - Acanthohoplitidae
cf. Colombiceras discoidalis ammonite
originally entered as "Colombiceras cf. discoidalis"
Echinoidea
 Salenioida - Hyposaleniidae
 Euechinoidea - Pseudodiadematidae
 Spatangoida - Toxasteridae
Toxaster villei heart urchin
 Spatangoida - Spatangidae
Epiaster restrictus heart urchin
 Holectypoida - Discoididae
Discoides peroni sea urchin
 Camarodonta - Glyphocyphidae