Pont des Étoiles (Jurassic to of France)

Where: Auvergne-Rhône-Alpes, France (44.8° N, 4.8° E: paleocoordinates 34.6° N, 15.2° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Parkinsoni ammonoid zone, Late/Upper Bajocian to Late/Upper Bajocian (171.6 - 164.7 Ma)

• Late Bajocian/Early Bathonian Parkinsoni/Zigzag Zones.

• group of beds-level stratigraphic resolution

Environment/lithology: platform or shelf-margin reef; limestone and gray marl

• "Almeras and Elmi (1996) assumed that the crinoid remains and the brachiopods were transported by currents or mass flows from adjoining platforms or swells and accumulated at the foot of the escarpment."
• "Crinoidal limestones and marls"

Size class: macrofossils

Collected by H. Hess in the 1950s

• Natural History Museum Basel (Switzerland).

Primary reference: H. Hess. 2012. Crinoids from the Middle Jurassic (Bajocian–Lower Callovian) of Arde`che, France. Swiss Journal of Palaeontology 131:121-253 [P. Novack-Gottshall/P. Novack-Gottshall]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 225718: authorized by Phil Novack-Gottshall, entered by Phil Novack-Gottshall on 25.05.2022

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Crinoidea
 Isocrinida - Pentacrinitidae
Pentacrinites ausichi n. sp.
Pentacrinites ausichi n. sp. Hess 2012 Sea lily
6 columnals, 5 cirrals, 3 secundibrachials
 Isocrinida - Isocrinidae
Balanocrinus inornatus, Balanocrinus pacomei, Balanocrinus dumortieri, Isocrinus dumortieri, Isocrinus nicoleti
Balanocrinus inornatus d'Orbigny 1850 Sea lily
6 pluricolumnals
Balanocrinus pacomei de Loriol 1887 Sea lily
22 pluricolumnals, 12 columnals
Balanocrinus dumortieri de Loriol 1887 Sea lily
1 pluricolumnal
Isocrinus dumortieri Oppel 1865 Sea lily
7 pluricolumnals
Isocrinus nicoleti Desor 1845 Sea lily
Large number of stems, cirri, and brachials
 Cladida - Cyclocrinidae
Cyclocrinus rugosus
Cyclocrinus rugosus d'Orbigny 1841 Sea lily
4 columnals
 Cyrtocrinida - Eugeniacrinitidae
Lonchocrinus dumortieri
Lonchocrinus dumortieri de Loriol 1882 Sea lily
2 cups
 Cyrtocrinida - Phyllocrinidae
Scutellacrinus tenuis n. gen. n. sp., Phyllocrinus voultensis
Scutellacrinus tenuis n. gen. n. sp. Hess 2012 Sea lily
1 cup
Phyllocrinus voultensis Hess 2012 Sea lily
2 cups
 Cyrtocrinida - Sclerocrinidae
Cyrtocrinus praenutans
Cyrtocrinus praenutans Hess 2012 Sea lily
22 cups, 13 columnals
Brachiopoda
  -
Brachiopoda indet.
Brachiopoda indet. Cuvier 1805