Destombes Loc. 1050. Arhembou n’Dali e Ikhf n’Ourarh al S de Tinerhir (Ordovician of Morocco)

Also known as Llandeilo section, Tachilla Fm., Anti-Atlas Mountains, Morocco

Where: Morocco (31.4° N, 5.3° W: paleocoordinates 80.9° S, 91.9° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Desmochitina bulla other zone, Tachilla Formation, Dobrotivian (460.9 - 457.5 Ma)

• Basal 12 meters of the formation. That should be Desmochitina bulla chitinozoan zone

• formation-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; lithified, shelly/skeletal grainstone

• Calcareous coquinoids

Size classes: macrofossils, mesofossils

Primary reference: C. Babin and J. Destombes. 1990. Les mollusques bivalves et rostroconches Ordoviciens de l’Anti-Atlas marocain: Intérêt paléogéographique de leur inventaire. Géologie Méditerranéenne 17:243-261 [A. Miller/P. Novack-Gottshall/P. Novack-Gottshall]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 20985: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 13.06.2002, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

• Primarily bivalve and rostroconch taxonomy and biostrat., with others listed
Trilobita
 Corynexochida - Illaenidae
Illaenidae indet. Hawle and Corda 1847 trilobite
 Phacopida - Dalmanitidae
 Phacopida - Pliomeridae
Placoparia sp. Hawle and Corda 1847 trilobite
 Phacopida - Homalonotidae
Plaesiacomia sp. Hawle and Corda 1847 trilobite
Colpocoryphe sp. Novak and Perner 1918 trilobite
 Asaphida - Asaphidae
Asaphidae indet. Burmeister 1843 trilobite
Hyolitha
 Hyolithida -
Pauxillites pauxillus
Pauxillites pauxillus meridionalis
Rhynchonellata
 Orthida - Euorthisinidae
Bivalvia
 Modiomorphida - Modiomorphidae
Gastropoda
 Bellerophontida - Tropidodiscidae
"Tropidodiscus pusillus" = Peruniscus pusillus
"Tropidodiscus pusillus" = Peruniscus pusillus Perner 1903 snail
Graptolithina
 Panreclinata - Dichograptidae