Val d'Homs Formation (Cambrian of France)

Where: France (43.0° N, 2.0° E: paleocoordinates 57.3° S, 106.6° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Val d'Homs Formation, Dresbachian (497.0 - 485.4 Ma)

• limestone lens 1m base of formation

• bed-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; lithified, pyritic, shelly/skeletal, green, blue grainstone and lithified shale

• environmental call is based on the stratigraphic context of figure 2. section is clastic dominated,
• compact limestone, 0-8m thick, microsparitic, bluish and grey-greenish in colour, with light grey and pink patches, rich in pyrite, coquinas of trilobite shell debris, less common echinoderms and nonarticulated brachiopods

Collection methods: bulk,

Primary reference: J. H. Shergold, R. Feist, and D. Vizcaino. 2000. Early Late Cambrian trilobites of Australo-Sinian aspect from the Montagne Noire, Southern France. Palaeontology 43(4):599-632 [S. Peters/S. Peters]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 56191: authorized by Shanan Peters, entered by Shanan Peters on 15.11.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Lingulata
 Lingulida - Acrothelidae
Acrothele sp., Orbithele cf. courtessolei
Acrothele sp. Linnarsson 1876
 Acrotretida -
Ferralstreta globosa n. gen. n. sp.
Ferralstreta globosa n. gen. n. sp.
 Acrotretida - Acrotretidae
Dactylotreta bacula n. sp., Stilpnotreta magna, Angulotreta brevis n. sp., Neotreta sp.
Stilpnotreta magna Henderson and MacKinnon 1981
Neotreta sp. Sobolev 1976
 Siphonotretida - Siphonotretidae
Schizambon convexus n. sp.
Paterinata
 Paterinida - Paterinidae
Dictyonina sp.
Dictyonina sp. Cooper 1942
Trilobita
 Corynexochida - Leiostegiidae
Prochuangia gallica
 Ptychopariida - Lisaniidae
Shengia cf. spinosa
 Asaphida - Ceratopygidae
Proceratopyge sp.
Proceratopyge sp. Wallerius 1895 trilobite
 Asaphida - Anomocaridae
Abharella sp.
Abharella sp. Wittke 1984 trilobite
 Olenida - Eulomidae
Stigmatoa courtessolei n. sp.
Stigmatoa courtessolei n. sp. trilobite
 Olenida - Aphelaspidae
Olentella cf. africana
 Lichida - Damesellidae
Palaeadotes latefalcata
 Lichida - Lichakephalidae
Paraacidaspis ultima n. sp.
Paraacidaspis ultima n. sp. trilobite
Artiopoda
 Agnostida - Ammagnostidae
Ammagnostus cf. sinensis
 Agnostida - Agnostidae
? Kormagnostus sp.
? Kormagnostus sp. Resser 1938