PBDB Collection

Middle Hamar Laghdad Limestone, Tafilalt, SE Morocco (Devonian of Morocco)

Where: Morocco (31.8° N, 4.5° W: paleocoordinates 50.4° S, 24.4° E)

• coordinate based on political unit

• local area-level geographic resolution

When: Hamar Laghdad Limestone Formation, Late/Upper Emsian (402.5 - 391.9 Ma)

• "Ober-Emsium: Mittlere Hamar Laghdad-Kalke"

•JA: originally entered as Zlichovian

• formation-level stratigraphic resolution

Environment/lithology: marine; shelly/skeletal limestone

• Succeeds Lower Hamar Laghdad Limestone after shallowing upward sequence. See collection 27062.

Size class: macrofossils

Primary reference: G. K. B. Alberti. 1969. Trilobiten des juengeren Siluriums sowie des Unter- und Mitteldevons. I. Mit Beitraegen zur Silur-Devon-Stratigraphie einiger Gebiete Marokkos und Oberfrankens. Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft 520:1-692 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 27071: authorized by Michael Foote, entered by Michael Foote on 15.11.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• Focus is on trilobites, but some other elements are listed.

Show authors, comments, and common names

Trilobita
Proetida - Otarionidae	Otarion (Otarionella) tafilaltense Otarion (Otarionella) tafilaltense trilobite
Proetida - Tropidocoryphidae	Phaetonellus planicaudus, "Cornuproetus (? Tafilaltaspis) nitidus n. sp." = Tafilaltaspis nitidus, Eremiproetus dufresnoyi, "Eremiproetus frequens" = Nagaproetus frequens Phaetonellus planicaudus trilobite "Cornuproetus (? Tafilaltaspis) nitidus n. sp." = Tafilaltaspis nitidus Alberti 1969 trilobite Eremiproetus dufresnoyi trilobite "Eremiproetus frequens" = Nagaproetus frequens Alberti 1967 trilobite
Proetida - Proetidae	"? Cornuproetus (? Sculptoproetus) magrebus" = Sculptoproetus maghrebus, "Cornuproetus (Sculptoproetus) sculptus" = Sculptoproetus sculptus, "Cornuproetus (Cornuproetus) midas" = Montanproetus midas "? Cornuproetus (? Sculptoproetus) magrebus" = Sculptoproetus maghrebus Alberti 1967 trilobite "Cornuproetus (Sculptoproetus) sculptus" = Sculptoproetus sculptus Barrande 1846 trilobite "Cornuproetus (Cornuproetus) midas" = Montanproetus midas Erben 1952 trilobite
Harpetida - Harpetidae	Harpes "n. sp. C" Harpes "n. sp. C" Goldfuss 1839 trilobite
Phacopida - Acastidae	Asteropyginae indet. Asteropyginae indet. Delo 1935 trilobite
Phacopida - Phacopidae	"Phacops (Phacops) breviceps" = Chotecops breviceps, "Phacops (Phacops) aff. breviceps" = Chotecops breviceps, "Phacops (Phacops) cf. degener" = Pedinopariops degener, "Phacops (Phacops) fecundus" = Ananaspis fecunda "Phacops (Phacops) breviceps" = Chotecops breviceps Barrande 1846 trilobite "Phacops (Phacops) aff. breviceps" = Chotecops breviceps Barrande 1846 trilobite "Phacops (Phacops) cf. degener" = Pedinopariops degener Barrande 1852 trilobite "Phacops (Phacops) fecundus" = Ananaspis fecunda Barrande 1852 trilobite
Corynexochida - Styginidae	"Scabriscutellum furciferum" = Cavetia furcifera "Scabriscutellum furciferum" = Cavetia furcifera Hawle and Corda 1847 trilobite
Tentaculita
Nowakiida - Nowakiidae	Viriatellina hercynica, Viriatellina hercynica, Nowakia cf. barrandei Viriatellina hercynica Boucek 1964 Viriatellina hercynica Boucek 1964 Nowakia cf. barrandei
Cephalopoda
Agoniatitida - Mimagoniatitidae	Mimagoniatites ex gr. bohemicus Mimagoniatites ex gr. bohemicus Barrande 1865 ammonite
Agoniatitida - Mimoceratidae	Gyroceratites laevis Gyroceratites laevis Eichenberg 1931 ammonite
Agoniatitida - Mimosphinctidae	"Anetoceras cf. advolvens" = Erbenoceras advolvens "Anetoceras cf. advolvens" = Erbenoceras advolvens Erben 1960 ammonite