Marl with Anarcestes lateseptatus at Dechra-Ait-Abdallah (Devonian of Morocco)

Where: Morocco (33.2° N, 5.6° W)

• Paleocoordinates: 33.4° S, 10.0° W (Wright 2013)

• coordinate based on political unit

• local area-level geographic resolution

When: Nowakia holynensis other zone, Akrech Formation, Emsian (410.6 - 393.5 Ma)

• PJW: Was Eifelian, but Unitary Analyses makes Anarcestes lateseptatus late Emsian, which is also consistent with the Nowakia holynensis zone noted by Jell & Adrain (2002). Given area, it is probably the Akrech formation.

• formation-level stratigraphic resolution

Environment/lithology: marine; marl

• "marl"

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 27117: authorized by Michael Foote, entered by Michael Foote on 18.11.2002

Creative Commons license: CC0 (CC0)

Taxonomic list

• Focus is on trilobites. Some other elements occasionally mentioned.
Tentaculita
 Nowakiida - Striatostyliolinidae
Striatostyliolina sp. Boucek and Prantl 1961
 Nowakiida - Nowakiidae
Cephalopoda
 Ammonitida - Mimoceratidae
Gyroceratites gracilis Bronn 1835 ammonite
 Ammonitida - Anarcestidae
Anarcestes lateseptatus Beyrich 1837 ammonite
Trilobita
 Harpetida - Harpetidae
Harpes perradiatus Richter and Richter 1943 trilobite
 Phacopida - Acastidae
Asteropyginae indet. Delo 1935 trilobite
 Phacopida - Phacopidae
Phacops (Phacops) papulatus, "Phacopidella (Struveaspis) micromma" = Struveaspis micromma, "Phacops (Phacops) aff. fecundus" = Ananaspis fecunda, "Phacops (Eocryphops) termieri" = Eocryphops termieri, "Phacops (Phacops) cf. degener" = Pedinopariops degener
Phacops (Phacops) papulatus Richter and Richter 1943 trilobite
"Phacopidella (Struveaspis) micromma" = Struveaspis micromma Roemer 1852 trilobite
"Phacops (Phacops) aff. fecundus" = Ananaspis fecunda Barrande 1852 trilobite
"Phacops (Eocryphops) termieri" = Eocryphops termieri Richter and Richter 1943 trilobite
"Phacops (Phacops) cf. degener" = Pedinopariops degener Barrande 1852 trilobite
 Corynexochida - Styginidae
 Proetida - Tropidocoryphidae
"Cornuproetus (Tafilaltaspis) creber" = Tafilaltaspis creber
"Cornuproetus (Tafilaltaspis) creber" = Tafilaltaspis creber Alberti 1966 trilobite
 Proetida - Proetidae
"Drevermannia (? Palpebralia) herrmanni" = Eopalpebralia herrmanni, "Drevermannia (? Palpebralia) pygmaea n. sp." = Erbenaspis pygmaea, "Cornuproetus (Macroblepharum) africanus" = Sculptoproetus africanus, "Cornuproetus (Macroblepharum) germanicus" = Sculptoproetus germanicus, "Cornuproetus (Piriproetus) ornatissimus" = Piriproetus (Piriproetus) ornatissimus
"Drevermannia (? Palpebralia) herrmanni" = Eopalpebralia herrmanni Richter and Richter 1943 trilobite
"Drevermannia (? Palpebralia) pygmaea n. sp." = Erbenaspis pygmaea Alberti 1969 trilobite
"Cornuproetus (Macroblepharum) africanus" = Sculptoproetus africanus Alberti 1969 trilobite
"Cornuproetus (Macroblepharum) germanicus" = Sculptoproetus germanicus Alberti 1969 trilobite
"Cornuproetus (Piriproetus) ornatissimus" = Piriproetus (Piriproetus) ornatissimus Erben 1952 trilobite
 Proetida - Aulacopleuridae
"Aulacopleura (Paraaulacopleura) beyrichi" = Aulacopleura beyrichi
"Aulacopleura (Paraaulacopleura) beyrichi" = Aulacopleura beyrichi Novák 1890 trilobite