Sud-Sacaco West (SAS) horizon) (Miocene of Peru)

Where: Peru (15.6° S, 74.7° W: paleocoordinates 15.8° S, 73.3° W)

• coordinate stated in text

• local area-level geographic resolution

When: Pisco Formation, Messinian (7.2 - 5.3 Ma)

• See Muizon and de Vries (1985). Basal most Pliocene. A tuff layer from the Sacaco level, above the Sud-Sacaco level, has been dated radiometrically (K/Ar) to 3.9 Myr (de Muizon & Bellon, 1980, 1986). Ehret et al (2012) updated the age to Messinian (5.93 Sr isotopes) rather than Zanclean.

• bed-level stratigraphic resolution

Environment/lithology: foreshore; diatomaceous siltstone

• SAS (Montemar) horizon. Shore environment with beaches and reefs exposed to marine currents. High sedimentation rate, shallow-to-deep shelf, upwelling

Size class: macrofossils

Preservation: original phosphate

Primary reference: C. Muizon. 1983. Pliopontos littoralis un nouveau Platanistidae Cetacea du Pliocene de la cote peruvienne. Comptes Rendus de l'Academie des Sciences Paris Serie II (296)1101-1104 [M. Uhen/N. Pyenson/N. Pyenson]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 13079: authorized by Mark Uhen, entered by Mark Uhen on 18.01.2002, edited by Nick Pyenson

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Bivalvia
 Arcida - Arcidae
Anadara sp.18 Gray 1847 ark
 Cardiida - Veneridae
Dosinia sp.18 Scopoli 1777 venus clam
Gastropoda
 Neogastropoda - Muricidae
Acanthina obesa18 DeVries 2003 unicorn
Acanthina triangularis18 DeVries 2003 unicorn
Herminespina sp.18 DeVries and Vermeij 1997 murex snail
Concholepas kieneri18 Hupé 1854 murex snail
Chondrichthyes
 Myliobatiformes - Myliobatidae
Myliobatis sp.10 Cuvier 1816 eagle ray
 Lamniformes - Otodontidae
"Procarcharodon megalodon" = Otodus megalodon10, "Carcharocles megalodon" = Otodus megalodon18
"Procarcharodon megalodon" = Otodus megalodon10 Agassiz 1843 megalodon
"Carcharocles megalodon" = Otodus megalodon18 Agassiz 1843 megalodon
 Lamniformes - Lamnidae
Carcharodon hubbelli n. sp.3 Ehret et al. 2012 white shark
Carcharodon carcharias5 Linnaeus 1758 great white shark
 Lamniformes - Odontaspididae
"Odontaspis aff. taurus" = Carcharias taurus10
"Odontaspis aff. taurus" = Carcharias taurus10 Rafinesque 1810 sand shark
 Carchariniformes - Carcharhinidae
Carcharhinus sp.12 de Blainville 1816 requiem shark
Actinopteri
 Istiophoriformes - Xiphiidae
Xiphiidae indet.10 Swainson 1839 sword fish
 Acanthomorphata - Sphyraenidae
 Acanthomorphata - Centropomidae
 Scombriformes - Scombridae
Scombridae indet.10 Rafinesque 1815
 Scombriformes - Cybiidae
 Teleostei -
 Tetraodontiformes - Balistidae
 Clupeiformes - Clupeoidei
Clupeidae indet.18 Bleeker 1859 hering
Alosinae indet.10 hering
 Siluriformes - Ariidae
Ariidae indet.10 Berg 1958 Ariid catfish
cf. Ariidae indet.12 Berg 1958 Ariid catfish
Aves
 Cathartiformes - Cathartidae
"Vulturidae indet." = Cathartidae18
"Vulturidae indet." = Cathartidae18 Lafresnaye 1839 vulture
 Ornithurae - Pelagornithidae
cf. Pelagornithidae indet.10 Fürbringer 1888 bird
Pelagornis sp.18 Lartet 1857 bird
 Procellariiformes - Procellariidae
Procellariidae indet.10 Vigors 1825 petrel
Fulmarus sp.2 Stephens 1826 petrel
 Sphenisciformes - Spheniscidae
Spheniscidae indet.5 Bonaparte 1831 penguin
form 2
Spheniscus humboldti18 Meyen 1834 Humboldt penguin
Spheniscus urbinai n. sp.17 Stucchi 2002 penguin
 Suliformes - Phalacrocoracidae
cf. Phalacrocorax sp.10 Brisson 1760 cormorant
 Suliformes - Sulidae
Ramphastosula ramirezi n. gen. n. sp.18 Stucchi and Urbina 2004 booby
Ramphastosula aguierrei19 Stucchi et al. 2016 booby
cf. Sula sp.10 Brisson 1760 booby
Sula sp.18 Brisson 1760 booby
Reptilia
 Loricata -
Eusuchia sp.10 Huxley 1875 crocodilian
 Crocodylia -
Piscogavialis jugaliperforatus18 Kraus 1998 crocodilian
Mammalia
 Carnivora - Otariidae
"Arctocephalus lomasiensis" = Hydrarctos lomasiensis14
"Arctocephalus lomasiensis" = Hydrarctos lomasiensis14 Muizon 1978 eared seal
 Carnivora - Phocidae
Phocidae indet.5 Gray 1821 seal
Monachinae indet.10 Trouessart 1897 seal
form 2
Piscophoca pacifica n. gen. n. sp.7 Muizon 1981 seal
Acrophoca longirostris n. gen. n. sp.7 Muizon 1981 seal
Hadrokirus martini n. gen. n. sp.1 Amson and Muizon 2013 seal
 Xenarthra - Megatheriidae
Megatheriidae indet.10 Gray 1821 edentate
Thalassocnus littoralis n. sp.6 McDonald and Muizon 2002 edentate
 Cetacea - Cetotheriidae
Cetotheriidae indet.5 Brandt 1872 whale
Piscobalaena nana n. gen. n. sp.15 Pilleri and Siber 1989 whale
 Cetacea - Kogiidae
Scaphokogia sp.4 Muizon 1988 pygmy sperm whale
sp. nov.
 Cetacea -
Delphinoidea indet.10 Flower 1865 toothed whale
 Cetacea - Odobenocetopsidae
Odobenocetops leptodon13 Muizon et al. 1999 toothed whale
Odobenocetops peruvianus n. gen. n. sp.11 Muizon 1993 toothed whale
 Cetacea - Delphinidae
Globicephalinae indet.10, "Tursiops oligodon n. sp." = Hemisyntrachelus oligodon16
Globicephalinae indet.10 Gray 1866 dolphin
"Tursiops oligodon n. sp." = Hemisyntrachelus oligodon16 Pilleri and Siber 1989 dolphin
 Cetacea - Phocoenidae
Phocoenidae indet.5 Gray 1825 porpoise
Piscolithax longirostris n. gen. n. sp.9 Muizon 1983 porpoise
 Cetacea - Pontoporiidae
Pliopontos littoralis n. gen. n. sp.
Pliopontos littoralis n. gen. n. sp. Muizon 1983 toothed whale
 Cetacea - Ziphiidae
Ninoziphius platyrostris n. gen. n. sp.8
Ninoziphius platyrostris n. gen. n. sp.8 Muizon 1983 beaked whale