Mexilhoeira, Cascais area, level 9b (Cretaceous of Portugal)

Where: Portugal (38.7° N, 9.4° W: paleocoordinates 32.8° N, 0.7° E)

• coordinate based on nearby landmark

• hand sample-level geographic resolution

When: Valanginian (139.8 - 132.9 Ma)

• 0.8 m

• group of beds-level stratigraphic resolution

Environment/lithology: offshore; poorly lithified, yellow, calcareous marl

Collection methods: bulk, surface (in situ),

Primary reference: J. Rey. 1972. Recherches géologiques sur le Crétacé inférieur de l'Estremadura (Portugal). Serviços Geologicos de Portugal 21:1-477 [L. Villier/L. Villier]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 65675: authorized by Loic Villier, entered by Loic Villier on 24.09.2006, edited by Austin Hendy

Creative Commons license: CC BY (attribution)

Taxonomic list

Echinoidea
 Cidaroida - Rhabdocidaridae
 Euechinoidea - Pseudodiadematidae
? Heterodiadema arrabidense n. sp. sea urchin
 Irregularia - Disasteridae
 Holectypoida - Holectypidae
Rhynchonellata
 Terebratulida -
 Rhynchonellida -
Cephalopoda
 Ammonitida - Olcostephanidae
Olcostephanus sp. Neumayr 1875 ammonite
 Ammonitida - Bochianitidae
? Bochianites sp. Lory 1898 ammonite
 Ammonitida - Neocomitidae
Neocomites cf. neocomiensis d'Orbigny 1841 ammonite
 Ammonitida - Haploceratidae
"Neolissoceras grasi" = Haploceras grasianum
"Neolissoceras grasi" = Haploceras grasianum d'Orbigny 1841 ammonite
 Phylloceratida - Phylloceratidae
Phylloceras sp. Suess 1865 ammonite
Phylloceras ex gr. serum Oppel 1865 ammonite
 Nautilida -
"Nautilitaceae indet." = Nautiloidea
"Nautilitaceae indet." = Nautiloidea de Blainville 1825 nautiloid
 Belemnoidea -
Belemnitida indet. Zittel 1895 belemnite
Gastropoda
  -
Gastropoda indet. Cuvier 1795 snail
 Heterostropha - Nerineidae
 Trochoidea - Turbinidae
Turbo sp. Linnaeus 1758 snail
 Pleurotomarioidea - Pleurotomariidae
Pleurotomaria sp. Defrance 1826 snail
 Neritoidea - Neritidae
Nerita sp. Linnaeus 1758 snail
Bivalvia
 Ostreida - Gryphaeidae
 Ostreida - Ostreidae
 Pectinida - Pectinoidae
Spondylus sp. Linnaeus 1758 scallop
 Pectinida - Neitheoidae
Neithea atava Roemer 1839 scallop
 Arcida - Arcidae
Arca sp. Linnaeus 1758 ark
Astraeidae
  - Astraeidae
"Montlivaultia sp." = Montlivaltia
"Montlivaultia sp." = Montlivaltia Lamouroux 1821