motorway N43, SW Sedan, French Ardennes (Jurassic of France)

Where: France (49.7° N, 4.9° E: paleocoordinates 38.0° N, 12.6° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Davoei ammonoid zone, Pliensbachian (190.8 - 182.7 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: deep subtidal; poorly lithified, shelly/skeletal shale and poorly lithified claystone

Size classes: macrofossils, mesofossils, microfossils

Collection methods: sieve,

Primary reference: B. Thuy. 2011. Exceptionally well-preserved brittle stars from the Pliensbachian (Early Jurassic) of the French Ardennes. Palaeontology 54(1):215-233 [L. Villier/L. Villier]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 106348: authorized by Loic Villier, entered by Loic Villier on 11.03.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Echinoidea
 Diadematoida - Diadematidae
Eodiadema sp. sea urchin
Holothuroidea
 Apodida - Achistridae
 Dendrochirotida -
Binoculites jurassica Frizzell and Exline 1955 sea cucumber
Asteroidea
 Spinulosida - Tropidasteridae
Tropidaster pectinatus Forbes 1850 sea star
Plumaster sp. Wright 1863 sea star
Ophiuroidea
 Ophiacanthida - Ophiacanthidae
Inexpectacantha acrobatica n. sp. Thuy 2011 brittle star
 Ophiacanthida - Ophiodermatidae
Palaeocoma milleri Phillips 1829 brittle star
 Ophiurida - Ophiuridae
? Ophiura astonensis Hess 1964 brittle star
Eirenura papillata n. sp. Thuy 2011 brittle star
 Ophiurida - Ophiosphalmidae
Ophiomusium sp. Lyman 1869 brittle star
Ophiomusium murravii Forbes 1843 brittle star
 Ophiurida - Aplocomidae
Sinosura brodiei Wright 1866 brittle star
Crinoidea
 Isocrinida - Isocrinidae
Cephalopoda
 Ammonitida - Dactylioceratidae
Prodactylioceras davoei Sowerby 1822 ammonite
 Ammonitida - Liparoceratidae
Amaltheus sp. de Montfort 1808 ammonite
Androgynoceras sp. Hyatt 1867 ammonite
Bivalvia
 Mytilida - Mytilidae
Modiolus sp. Lamarck 1801 mussel