Ophiuroidea, Aalenian, La Chapelle-sous-Brancion, Saône-et-Loire, France (Jurassic of France)

Where: France (46.6° N, 4.8° E: paleocoordinates 35.7° N, 15.3° E)

• coordinate estimated from map

• hand sample-level geographic resolution

When: Early/Lower Aalenian (175.6 - 171.6 Ma)

• Ludwigia murchisonae Zone

Environment/lithology: offshore ramp; limestone

Size class: macrofossils

Preservation: replaced with calcite

Collection methods: bulk,

• All individuals were collected from a single slab

Primary reference: A. Valette. 1929. Note sur quelques stellerides jurassiques du laboratoire de géologie de la faculté des sciences de Lyon. Travaux du Laboratoire de Géologique de la Faculté des Sciences de Lyon 16(13):1-62 [L. Villier/J. Millet]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 58931: authorized by Loic Villier, entered by Julien Millet on 01.03.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Ophiuroidea
 Ophiurida -
Ophiuricoma mazenoti n. gen. n. sp.
Ophiuricoma mazenoti n. gen. n. sp. Valette 1929 brittle star
Very well preserved. Disk : 14 mm ; Arm : 71 mm
 Ophiurida - Ophiuridae
Ophiura tinurtiensis n. sp. Valette 1929 brittle star
Poorly preserved. Disk : 6 mm ; Arm : 17 mm
Cephalopoda
 Ammonitida - Graphoceratidae
Ludwigia murchisonae Sowerby 1829 ammonite