Cerro la Bruja (Miocene of Peru)

Also known as CLB

Where: Ica, Peru (14.6° S, 75.7° W: paleocoordinates 15.2° S, 72.7° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Pisco Formation, Serravallian (13.8 - 11.6 Ma)

• CLB horizon, near Ica, Peru.

• bed-level stratigraphic resolution

Environment/lithology: offshore shelf; diatomaceous siltstone

• There is a high sedimentation rate, with shallow-to-deep shelf, and upwelling.
• La litología esta dada predominantemente por areniscas tobáceas, limolitas, limolitas diatomáceas amarillentas a blanco grisáceas. En la base del afloramiento se observa un nivel de conglomerado de forma lenticular, areniscas tobáceas con nódulos areniscosos de 0,5 a 2 cm de diámetro; la estratificación es paralela, sesgada, en general lo podemos dividir (de base a techo) en una secuencia granocreciente positiva y otra granodecreciente negativa, dentro de las cuales tenemos superficies de meteorización de coloración rojiza, compacta «hard-ground».

Size class: macrofossils

Preservation: original phosphate

Collection methods: surface (in situ),

• Natural History Museum of Lima, Peru (Studied in Pimiento and Balk)

Primary reference: C. Muizon. 1988. Les vertebres fossiles de la Formation Pisco (Perou). Troisieme partie: Les Odontocetes (Cetacea, Mammalia) du Miocene. Editions Recherche sur les Civilisations (78)1-244 [M. Uhen/N. Pyenson/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 45487: authorized by Mark Uhen, entered by Nick Pyenson on 25.10.2004, edited by Mark Uhen and Catalina Pimiento

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Chondrichthyes
 Odontaspidida - Carcharodontidae
"Isurus hastalis" = Cosmopolitodus hastalis6
"Isurus hastalis" = Cosmopolitodus hastalis6 Agassiz 1843 elasmobranch
 Myliobatiformes - Myliobatidae
Myliobatis sp.7 Cuvier 1816 eagle ray
 Lamniformes - Otodontidae
"Procarcharodon megalodon" = Otodus megalodon7
"Procarcharodon megalodon" = Otodus megalodon7 Agassiz 1843 megalodon
Also studied in Pimiento and Balk
 Carchariniformes - Carcharhinidae
Carcharhinus sp.7 de Blainville 1816 requiem shark
Actinopteri
 Scorpaeniformes - Triglidae
Triglidae indet.7 sea robin
 Istiophoriformes - Xiphiidae
Xiphiidae indet.7 Swainson 1839 sword fish
 Clupeiformes - Clupeoidei
Reptilia
 Testudines - Cheloniidae
"Chelonidae indet." = Cheloniidae7
"Chelonidae indet." = Cheloniidae7 Bonaparte 1832 sea turtle
Aves
 Ornithurae - Pelagornithidae
Pelagornithidae indet.2 Fürbringer 1888 bird
 Sphenisciformes - Spheniscidae
Spheniscidae indet.6 Bonaparte 1831 penguin
Spheniscus muizoni n. sp.3 Gohlich 2007 penguin
 Suliformes - Sulidae
cf. Sula sp.7 Brisson 1760 booby
Reptilia
 Loricata -
Eusuchia indet.7 Huxley 1875 crocodilian
Mammalia
 Carnivora - Phocidae
Monachinae indet.6 Trouessart 1897 seal
sp. 1
Monachinae sp.1 Trouessart 1897 seal
 Cetacea - Cetotheriidae
Cetotheriidae indet.6 Brandt 1872 whale
 Cetacea - Physeteridae
Physeteridae indet.7 Gray 1821 sperm whale
sp. 1
 Cetacea -
Acrophyseter sp.4 Lambert et al. 2008 toothed whale
Acrophyseter robustus n. sp.5 Lambert et al. 2017 toothed whale
Atocetus iquensis n. gen. n. sp. Muizon 1988 toothed whale
 Cetacea - Pontoporiidae
Brachydelphis mazeasi Muizon 1988 toothed whale
 Cetacea - Kentriodontidae
Kentriodontidae indet.6 Slijper 1936 toothed whale
Belonodelphis peruanus n. gen. n. sp. Muizon 1988 toothed whale
 Cetacea - Ziphiidae
cf. Ziphiidae indet.7 Gray 1850 beaked whale