JM2 (Cretaceous of Morocco)

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

• Paleocoordinates: 19.1° N, 8.6° E (Wright 2013)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Sidi Lhousseine Formation, Valanginian (137.1 - 132.6 Ma)

• formation-level stratigraphic resolution

Environment/lithology: lime mudstone

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 2063: authorized by Mark Patzkowsky, entered by Karen Layou on 21.06.1999

Creative Commons license: CC0 (CC0)

Taxonomic list

Cephalopoda
 Nautilida - Nautilidae
 Ammonitida - Bochianitidae
Bochianites neocomiensis d'Orbigny 1842 ammonite
 Ammonitida - Olcostephanidae
"Dobrodgeiceras ventrotuberculatum" = Valanginites, "aff. Dobrodgeiceras wilfridi" = Valanginites, ex gr. Olcostephanus sayni-subfilosus, Olcostephanus atherstoni, Olcostephanus densicostatus
"Dobrodgeiceras ventrotuberculatum" = Valanginites ammonite
originally entered as "Dobrogeiceras ventrotuberculatum"
"aff. Dobrodgeiceras wilfridi" = Valanginites ammonite
originally entered as "Dobrogeiceras aff. wilfridi"
ex gr. Olcostephanus sayni-subfilosus Neumayr 1875 ammonite
originally entered as "Olcostephanus gr. sayni-subfilosus"
Olcostephanus atherstoni Sharpe 1856 ammonite
Olcostephanus densicostatus Wegner 1909 ammonite
 Ammonitida - Neocomitidae
"ex gr. Kilianella superba" = Luppovella (Luppovella) superba Sayn 1907 ammonite
originally entered as "Kilianella gr. superba"
"aff. Teschenites pachydicranus" = Neocomites (Teschenites) pachydicranus Thieuloy 1977 ammonite
originally entered as "Teschenites aff. pachydicranus"
ex gr. Neocomites neocomiensis d'Orbigny 1841 ammonite
originally entered as "Neocomites gr. neocomiensis"
"Neocomites teschenensis" = Neocomites (Eristavites) teschenensis Uhlig 1902 ammonite
cf. Neohoploceras provinciale Sayn 1907 ammonite
originally entered as "Neohoploceras cf. provinciale"
aff. Karakaschiceras brandesi ammonite
originally entered as "Karakaschiceras aff. brandesi"
cf. Karakaschiceras biassalense Karakaschi 1889 ammonite
originally entered as "Karakaschiceras cf. biassalense"