Where: Portugal (40.5° N, 8.5° W: paleocoordinates 29.6° N, 0.8° W)
When: Hettangian (201.3 - 199.3 Ma)
Environment/lithology: shallow subtidal; poorly lithified claystone and lithified dolomite
Size classes: macrofossils, mesofossils
Preservation: original calcite
Collection methods: bulk, sieve
• For Ophiuroidea (Aplocoma? sp.) : 16 first vertebrae, 240 vertebrae, 171 lateral plates, 50 oral plates, 1 brachial ventral plate
Primary reference: H. Hess and C. Palain. 1975. Ophiures de l'Hettangien du Nord du Portugal. Communications du Service geologique du Portugal 59:5-13 [L. Villier/L. Villier/L. Villier]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 31914: authorized by Loic Villier, entered by Loic Villier on 29.05.2003, edited by Julien Millet
Creative Commons license: CC BY (attribution)
Taxonomic list
Echinoidea | |
Pedinidae indet. Pomel 1883 sea urchin | |
Ophiuroidea | |
? Aplocoma sp. d'Orbigny 1852 brittle star | |
Gastropoda | |
"Promathildia turritella" = Tangarilda subturritella
"Promathildia turritella" = Tangarilda subturritella d'Orbigny 1850 snail | |
Bivalvia | |
"Modiolus hillanus" = Modiolus (Cyranus) hillanus
"Modiolus hillanus" = Modiolus (Cyranus) hillanus Sowerby 1818 mussel | |
Plicatula hettangiensis Terquem 1857 scallop | |
Gervillia ? conimbrica oyster |