Pipas 1 (Pleistocene of Angola)

Where: Angola (14.9° S, 12.2° E: paleocoordinates 14.9° S, 12.2° E)

• coordinate stated in text

• local area-level geographic resolution

When: Middle Pleistocene (0.8 - 0.1 Ma)

• Middle, or, possibly, middle/late, Pleistocene (between ~125,000 (MIS 5e) and ~250,000 yr old)

Environment/lithology: shallow subtidal; gravel and sandstone

• Deposits were formed in a fully marine, rather energetic, nearshore paleoenvironment, with a bathymetric range compatible with the intertidal to upper infralittoral zones. A lower energy, sand-dominated habitat was locally transported and mixed with the gravel-dominated environment, possibly by the action of storms.

•In Pipas 1, the sand lenses appear to dip seaward and wedge out landward. In both deposits the gravel beds are clast-supported and heterolithic, with a diverse composition of quartzite, quartz, granite, porphyritic igneous rocks, limestone, sandstone and other lithic fragments. Possible source rocks for these clasts are nearby basement units

• gravel beds with occasional sand lenses

Size classes: macrofossils, mesofossils

Primary reference: J. A. Sessa, P. M. Callapez, P. A. Dinis and A. J. W. Hendy. 2013. Paleoenvironmental and paleobiogeographical implications of a Middle Pleistocene mollusc assemblage from the marine terraces of BaĆ­a das Pipas, southwest Angola. Journal of Paleontology 87(6):1016-1040 [W. Kiessling/M. Krause]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 152644: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 29.11.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Lepetellida - Fissurellidae
 Neotaenioglossa - Calyptraeidae
Crepidula porcellana slipper shell
Bostrycapulus sp. Olsson and Harbison 1953 slipper shell
 Neogastropoda - Olividae
Olivella nana olive snail
 Neogastropoda - Nassariidae
? Bullia sp. Gray 1834 snail
 Neogastropoda - Clavatulidae
 Neogastropoda - Conidae
Conus spp. Linnaeus 1758 cone shell
 Neogastropoda - Terebridae
Hastula lepida auger snail
 Neogastropoda - Marginellidae
Volvarina sp. Hinds 1844 margin shell
 Neogastropoda - Cancellariidae
Cancellaria sp. Lamarck 1799 snail
 Heterostropha - Trimusculidae
 Patellogastropoda - Patellidae
Patella granularis Linnaeus 1758 limpet
 Neritoidea - Neritidae
 Basommatophora - Siphonariidae
Siphonaria capensis Quoy and Gaimard 1833 pulmonate
Bivalvia
 Arcida - Noetiidae
 Arcida - Arcidae
 Pectinida - Anomiidae
Anomia sp. Linnaeus 1758 jingle
 Ostreida - Ostreidae
Ostrea stentina Payraudeau 1826 oyster
 Lucinida - Lucinidae
Loripes sp. Poli 1791 clam
 Cardiida - Chamidae
Pseudochama gryphina Lamarck 1819 jewel box
Chama crenulata jewel box
 Cardiida - Mactridae
 Carditida - Carditidae