Echinoidea, Site 46, Lignières, Paris basin (Cretaceous of France)

Where: France (47.9° N, 4.0° E: paleocoordinates 38.6° N, 13.5° E)

• coordinate based on nearby landmark

• hand sample-level geographic resolution

When: Calcaires à spatangues Formation, Early/Lower Hauterivian (136.4 - 130.0 Ma)

• member-level stratigraphic resolution

Environment/lithology: deep subtidal; poorly lithified, glauconitic, gray, yellow, sandy packstone

Size class: macrofossils

Collection methods: surface (float),

Primary reference: B. David. 1985. La variation chez les échinides irréguliers. Dimensions ontogénétiques, écologiques, évolutives. Thèse de l'Université de Dijon 1-302 [L. Villier/L. Villier]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 69067: authorized by Loic Villier, entered by Loic Villier on 16.02.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

Echinoidea
  -
Echinoidea indet. Leske 1778 sea urchin
Regular echinoid
 Irregularia - Nucleolitidae
Plagiochasma olfersii Agassiz 1836 sea urchin
Phyllobrissus gresslyi Agassiz 1839 sea urchin
 Irregularia - Clypeidae
 Spatangoida - Toxasteridae
Toxaster retusus Lamarck 1816 heart urchin
 Holasteroida - Holasteridae