Prainha Bay, Santa Maria (Pleistocene of Portugal)

Where: Portugal (36.9° N, 25.1° W: paleocoordinates 36.9° N, 25.1° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Late/Upper Pleistocene (0.1 - 0.0 Ma)

• STRATIGRAPHIC RELATIONS: From unnamed Late Quaternary marine deposits. AGE: Pleistocene. No basis for age given in text, but presumably is based on macrofaunal biostratigraphy and stratigraphic position. STRATIGRAPHIC POSITION: Succession is situated about 2ยท3 meters above the present low tide, and built of a basal conglomerate with algal-limestone concretions followed by 0.80 to 1.50 m of fossiliferous beach sands.

• bed-level stratigraphic resolution

Environment/lithology: coastal; lithified, concretionary, calcareous conglomerate and shelly/skeletal sandstone

• ENVIRONMENT: Comprising species of rocky, sandy or algal substrates from the supralittoral to upper sublittoral marine environments.
• SPECIFIC LITHOLOGY: Succession comprises basal conglomerate with algal-limestone concretions followed by 0.80 to 1.50 m of fossiliferous beach sands.. LITHIFICATION:

Size class: macrofossils

Preservation: original aragonite

Collection methods: bulk, surface (in situ),

• COLLECTOR: Unknown, from collections identified by Mayer (1864), Zbyszewski & Ferreira (1961). REPOSITORY: Not stated in text.

Primary reference: F. Mayer. 1864. Palaontologische Verhaltnisse. Systematisehes Verzeichniss der fossilen Reste von Madeira, Porto Santo und Santa Maria nebst Beschreibung der neuen Arten. In G. Hartung (ed.), Geologische Beschreibung der Inseln Madeira und Porto Santo 183-285 [A. Hendy/A. Hendy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 122245: authorized by Austin Hendy, entered by Austin Hendy on 20.12.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive faunal list for molluscs. NOMENCLATURE: Assembled in Callapez & Ferreira Soares (2000) from older literature. Original names (although following synonymies used in Callapez & Ferreira Soares) are entered, but re-identified using suggestions of Callapez & Ferreira Soares (2000).
Gastropoda
 Trochoidea - Phasianellidae
Tricolia pullus2 Linnaeus 1758 snail
 Trochoidea - Trochidae
""Trochus" strigosus" = Gibbula cineraria2
""Trochus" strigosus" = Gibbula cineraria2 Linnaeus 1758 top snail
 Neogastropoda - Mitridae
Mitra comicula2 Linnaeus 1758 mitre shell
 Neogastropoda - Mangeliidae
Mangelia nebula2 Montagu 1803 snail
 Sorbeoconcha - Cassidae
Phalium undulatum2 Gmelin 1791 snail
 Sorbeoconcha - Ranellidae
Cabestana cutacea2 Linnaeus 1767 triton shell
 Sorbeoconcha - Cypraeidae
"Zonaria pyrum" = Zonaria (Zonaria) pyrum2
"Zonaria pyrum" = Zonaria (Zonaria) pyrum2 Gmelin 1791 cowry
 Sorbeoconcha - Naticidae
Polinices lacteus2 Guilding 1834 moon snail
 Sorbeoconcha - Rissoidae
Rissoa dolium2 Nyst 1845 snail
Alvania pagodula2 Bucquoy et al. 1884 snail
Manzonia crassa1 Kanmacher 1798 snail
 Sorbeoconcha - Cerithiopsidae
Seila trilineata2 Philippi 1836 snail
Cerithiopsis nana2 Jeffreys 1867 snail
 Patellogastropoda - Patellidae
Patella candei1 d'Orbigny 1840 limpet
Bivalvia
 Pectinida - Pectinoidae
"Lyropecten cf. nodosus" = Nodipecten nodosus2
"Lyropecten cf. nodosus" = Nodipecten nodosus2 Linnaeus 1758 scallop
 Ostreida - Gryphaeidae
Neopycnodonte cf. cochlear2 Poli 1795 oyster
 Mytilida - Mytilidae
"Myoforceps aristata" = Lithophaga aristata1
"Myoforceps aristata" = Lithophaga aristata1 Dillwyn 1817 mussel
 Cardiida - Cardiidae
"Laevicardium norvegicum" = Laevicardium crassum2
"Laevicardium norvegicum" = Laevicardium crassum2 Gmelin 1791 cockle
 Solenida - Solenidae
Solen cf. marginatus2 Pulteney 1799 clam