Mexilhoeira, Cascais area, level 3 (Cretaceous of Portugal)

Where: Portugal (38.7° N, 9.4° W: paleocoordinates 32.4° N, 1.1° E)

• coordinate based on nearby landmark

• hand sample-level geographic resolution

When: Hauterivian (132.9 - 129.4 Ma)

• 10 m

• group of beds-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; lithified, argillaceous grainstone and poorly lithified, gray, 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 65740: authorized by Loic Villier, entered by Loic Villier on 25.09.2006, edited by Austin Hendy

Creative Commons license: CC BY (attribution)

Taxonomic list

Echinoidea
 Euechinoidea - Pseudodiadematidae
Polydiadema sp. n. sp. sea urchin
 Euechinoidea - Hemicidaridae
 Salenioida - Saleniidae
 Echinoneoida - Echinoneidae
Pyrina globosa sea urchin
 Spatangoida - Toxasteridae
Toxaster granosus heart urchin
Toxaster exilis heart urchin
 Irregularia - Disasteridae
 Holectypoida - Holectypidae
 Arbacioida - Arbaciidae
 Cidaroida - Rhabdocidaridae
Cephalopoda
 Phylloceratida - Phylloceratidae
"Phylloceras tethys" = Euphylloceras thetys
"Phylloceras tethys" = Euphylloceras thetys d'Orbigny 1841 ammonite
 Ammonitida - Olcostephanidae
Olcostephanus sp. Neumayr 1875 ammonite
 Ammonitida - Neocomitidae
""Neocomites" ex gr. nodosoplicatus" = Lyticoceras nodosoplicatum
""Neocomites" ex gr. nodosoplicatus" = Lyticoceras nodosoplicatum Kilian and Reboul 1915 ammonite
 Ammonitida - Crioceratitidae
 Ammonitida - Lytoceratidae
Lytoceras cf. subfimbriatum d'Orbigny 1841 ammonite
 Ammonitida - Holcodiscidae
Spitidiscus ex gr. rotula Sowerby 1827 ammonite
 Ammonitida - Haploceratidae
"Neolissoceras grasi" = Haploceras grasianum
"Neolissoceras grasi" = Haploceras grasianum d'Orbigny 1841 ammonite
 Nautilida -
"Nautilitaceae indet." = Nautiloidea
"Nautilitaceae indet." = Nautiloidea de Blainville 1825 nautiloid
Gastropoda
  -
Gastropoda indet. Cuvier 1795 snail
 Sorbeoconcha - Naticidae
Natica sp. Scopoli 1777 moon snail
Bivalvia
  -
Bivalvia indet. Linnaeus 1758 clam
 Pectinida - Neitheoidae
Neithea atava Roemer 1839 scallop
 Ostreida - Ostreidae
"Alectryonia rectangularis" = Ostrea (Alectryonia)
"Alectryonia rectangularis" = Ostrea (Alectryonia) oyster
 Ostreida - Gryphaeidae
Rhynchonellata
 Rhynchonellida -
 Rhynchonellida - Rhynchonellidae
"Terebratula acuta" = Homoeorhynchia acuta
"Terebratula acuta" = Homoeorhynchia acuta Sowerby 1816