Filon Douze Tafilalt bed KMO-III (Devonian of Morocco)

Also known as Filon 12, 7 km west of Taouz and 40 km south of Rissana

Where: Morocco (30.9° N, 4.1° W: paleocoordinates 59.8° S, 28.9° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Polygnathus pireneae conodont zone, Pragian (410.8 - 407.6 Ma)

Environment/lithology: offshore shelf; poorly lithified claystone and poorly lithified, sandy claystone

• 8 m thick claystone succession. "basal part contains considerable percentage of sand; towards the middle is an interval with numerous thin nodular limestone horizons and small favosisitid limestone biostromes <0.2 m thick and c. 2-3 m in diameter."

Size class: macrofossils

Preservation: recrystallized, original aragonite, replaced with calcite

Collected by Kröger in 2007; reposited in the MfN

Collection methods: surface (in situ), mechanical,

Primary reference: B. Kröger. 2008. Nautiloids before and during the ammonoid origin in a Siluro–Devonian section of the Tafilalt (Morocco). Special Papers in Palaeontology 79:1-110 [B. Kröger/B. Kröger]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 91724: authorized by Björn Kröger, entered by Björn Kröger on 18.10.2009, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

Rostroconchia
 Conocardiida - Hippocardiidae
"Bohemicardia bohemicus" = Bohemicardia bohemica
"Bohemicardia bohemicus" = Bohemicardia bohemica Barrande 1881
Best estimate for the appropriate bed.
Cephalopoda
 Lituitida - Lamellorthoceratidae
Arthrophyllum vermiculare Termier and Termier 1950
 Dissidocerida - Geisonoceratidae
Temperoceras migrans Barrande 1868
 Orthocerida - Dawsonoceratidae
Anaspyroceras sp. Shimizu and Obata 1935
 Bactritida - Bactritidae
Bactrites sp. Sandberger 1843
 Pseudorthocerida - Spyroceratidae
 Pseudorthocerida - Pseudorthoceratidae
 Oncocerida - Karoceratidae
Gastropoda
 Euomphalina - Craspedostomatidae
Spirina sp. Kayser 1889 snail
Best estimate for the appropriate bed.
 Euomphalina - Euomphalidae
aff. Tychobrahea sp. Horny 1992 snail
Best estimate for the appropriate bed.
Rihamphalus gracilis Ríha 1938 snail
Best estimate for the appropriate bed.
 Euomphalina - Oriostomatidae
Australonema "sp. nov." Tassell 1980 snail
Best estimate for the appropriate bed.
Oriomphalus multiornatus n. sp. Frey et al. 2014 snail
Best estimate for the appropriate bed.
 Bellerophontida - Bellerophontidae
Cymbulariinae "n. gen." Horný 1963 snail
Best estimate for the appropriate bed.
 Murchisoniina - Palaeozygopleuridae
Palaeozygopleura "n. sp." Horný 1955 snail
Best estimate for the appropriate bed.
 Murchisoniina - Gosseletinidae
Umbotropis sp. Perner 1903 snail
Best estimate for the appropriate bed.
 Murchisoniina - Porcelliidae
"Paraoehlertia sp." = Quadricarina
"Paraoehlertia sp." = Quadricarina Blodgett and Johnson 1992 snail
Best estimate for the appropriate bed.
 Murchisoniina - Murchisoniidae
Eohormotomina restisevoluta n. gen. n. sp. Frey et al. 2014 snail
Best estimate for the appropriate bed.
Trilobita
 Corynexochida - Styginidae
Paralejurus sp. Hawle and Corda 1847 trilobite
 Phacopida - Calymenidae
Gravicalymene sp. Shirley 1936 trilobite
 Phacopida - Phacopidae
Reedops cephalotes Hawle and Corda 1847 trilobite