Zamaca: Burdigalian, Peru

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Chondrichthyes - Myliobatiformes
Myliobatoidea indet. ()
Landini et al. 2019
Chondrichthyes - Myliobatiformes - Dasyatidae
Dasyatidae indet. Jordan 1888
Landini et al. 2019
Chondrichthyes - Odontaspidida - Jaekelotodontidae
Anotodus agassizii (Le Hon 1871)
Landini et al. 2019
Chondrichthyes - Squatinidae
Squatina sp. Dumeril 1806
Landini et al. 2019
Chondrichthyes - Rhinopristiformes - Pristidae
cf. Anoxypristis sp. White and Moy-Thomas 1941
Landini et al. 2019
Chondrichthyes - Carcharhiniformes - Carcharhinidae
Negaprion brevirostris Poey 1868
Landini et al. 2019
Physogaleus contortus (Gibbes 1847)
Landini et al. 2019
Carcharhinus brachyurus (Gunther 1870)
Landini et al. 2019
Carcharhinus dicelmai n. sp. Collareta et al. 2022
Collareta et al. 2022
MUSM 4697
Carcharhinus cf. leucas (Valenciennes 1839)
Landini et al. 2019
Chondrichthyes - Carcharhiniformes - Hemigaleidae
Hemipristis serra Agassiz 1835
Landini et al. 2019
Chondrichthyes - Carcharhiniformes - Sphyrnidae
Sphyrna zygaena (Linnaeus 1758)
Landini et al. 2019
Chondrichthyes - Carcharhiniformes - Galeocerdidae
Galeocerdo aduncus (Agassiz 1835)
Landini et al. 2019
Chondrichthyes - Lamniformes - Carchariidae
Carcharias sp. Rafinesque 1810
Landini et al. 2019
Chondrichthyes - Lamniformes - Lamnidae
Isurus oxyrinchus Rafinesque 1810
Landini et al. 2019
Cosmopolitodus hastalis (Agassiz 1838)
Landini et al. 2019
recombined as Carcharodon hastalis
Carcharocles chubutensis (Agassiz 1839)
Landini et al. 2019
recombined as Carcharodon subauriculatus
Cosmopolitodus plicatilis (Agassiz 1843)
Landini et al. 2019
Chondrichthyes - Lamniformes - Alopiidae
Alopias superciliosus (Lowe 1840)
Landini et al. 2019
Alopias cf. vulpinus (Bonnaterre 1788)
Landini et al. 2019
Chondrichthyes - Lamniformes - Megachasmidae
Megachasma cf. applegatei Shimada et al. 2014
Landini et al. 2019
Chondrichthyes - Lamniformes - Otodontidae
Parotodus benedeni (Le Hon 1871)
Landini et al. 2019
Megalolamna paradoxodon Shimada et al. 2017
Landini et al. 2019
Mammalia - Cetacea - Eurhinodelphinidae
Eurhinodelphinidae indet. (Abel 1901)
Lambert et al. 2021
MUSM 632
Mammalia - Cetacea
Platanidelphidi indet. Bianucci et al. 2020
Bianucci et al. 2020
Mammalia - Cetacea - Squalodelphinidae
Notocetus vanbenedeni (Moreno 1892)
Bianucci et al. 2020
Mammalia - Cetacea
Ensidelphis riveroi n. gen., n. sp. Bianucci et al. 2020
Bianucci et al. 2020
Mammalia - Carnivora
Pinnipedia indet. (Illiger 1811)
Varas-Malca et al. 2011 1 specimen
Reptilia
Sacacosuchus sp. Salas-Gismondi et al. 2022
Salas-Gismondi et al. 2022
MUSM 164
Palaeospheniscus sp. Moreno and Mercerat 1891
1 specimen
see common names

Geography
Country:Peru State/province:Ica
Coordinates: 14.6° South, 75.6° West (view map)
Paleocoordinates:15.5° South, 71.5° West
Basis of coordinate:stated in text
Time
Period:Neogene Epoch:Miocene
Stage:Burdigalian 10 m.y. bin:Cenozoic 5
Key time interval:Burdigalian
Age range of interval:20.44000 - 15.97000 m.y. ago
Stratigraphy
Formation:Chilcatay
Stratigraphic resolution:formation
Stratigraphy comments: Acosta Hospitaleche et al 2005 identify this locality as early Middle Miocene. Varas-Malca et al 2011 state it is late Oligocene to early middle Miocene.

The age of the Ct1c facies association is constricted between 19.25 ± 0.08 Ma and 19.00 ± 0.28 Ma (early Burdigalian) on the basis of two volcanic ash layer samples dated by 40Ar/39Ar [89].
Lithology and environment
Primary lithology: not reported
Environment:coastal indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:general faunal/floral analysis
Metadata
Database number:100330
Authorizer:M. Uhen, P. Mannion Enterer:M. Uhen, P. Mannion
Modifier:M. Uhen Research group:vertebrate
Created:2010-12-08 04:02:01 Last modified:2021-07-01 15:07:53
Access level:the public Released:2010-12-08 04:02:01
Creative Commons license:CC BY
Reference information

Primary reference:

34442. C. Acosta Hospitaleche and M. Stucchi. 2005. Nuevos restos terciarios de Spheniscidae (Aves, sphenisciformes) procedentes de la Costa del Peru. Revista española de paleontología 20(1):1-5 [M. Uhen/M. Uhen]

Secondary references:

71912 G. Bianucci, C. de Muizon, M. Urbina and O. Lambert. 2020. Extensive diversity and disparity of the early Miocene platanistoids (Cetacea, Odontoceti) in the Southeastern Pacific (Chilcatay Formation, Peru). Life 10(27):1-62 [M. Uhen/M. Uhen/M. Uhen]
77300 M. Chávez-Hoffmeister. 2014. The humerus and stratigraphic range Paleospheniscus (Aves, Sphenisciformes). Ameghiniana 51(3):159-172 [M. Uhen/M. Uhen]
82886 A. Collareta, R. Kindlimann, A. Baglioni, W. Landini, G. Sarti, A. Altamirano, M. Urbina and G. Bianucci. 2022. Dental Morphology, Palaeoecology and Palaeobiogeographic Significance of a New Species of Requiem Shark (Genus Carcharhinus) from the Lower Miocene of Peru (East Pisco Basin, Chilcatay Formation). Journal of Marine Science and Engineering 10(1455):1-17 [M. Uhen/M. Uhen]
75374 O. Lambert, C. de Muizon, R. M. Varas-Malca, M. Urbina, and G. Bianucci. 2021. Eurhinodelphinids from the early Miocene of Peru: first unambiguous records of these hyper-longirostrine dolphins outside the North Atlantic realm. Rivista Italiana di Paleontologia e Stratigrafia 127(1):17-32 [M. Uhen/M. Uhen]
61737 W. Landini, A. Collareta, C. Di Celma, E. Malinverno, M. Urbina and G. Bianucci. 2019. The early Miocene elasmobranch assemblage from Zamaca (Chilcatay T Formation, Peru). Journal of South American Earth Sciences 91:352-371 [M. Uhen/B. Shipps/M. Uhen]
81650 R. Salas-Gismondi, D. Ochoa, S. Jouve, P. E. Romero, J. Cardich, A. Perez, T. DeVries, P. Baby, M. Urbina and M. Carré. 2022. Miocene fossils from the southeastern Pacific shed light on the last radiation of marine crocodylians. Proceedings of the Royal Society B 289:20220380:1-10 [P. Mannion/P. Mannion]
43638 R. M. Varas-Malca, A. J. Altamirano-Sierra, T. DeVries and M. Urbino. 2011. The earliest known pinniped from the Southern Hemisphere. Ameghiniana 48(4):R217 [M. Uhen/M. Uhen]