Also known as Paracas Reserve
Where: Peru (13.9° S, 76.3° W: paleocoordinates 16.2° S, 68.8° W)
• coordinate stated in text
• small collection-level geographic resolution
When: Otuma Formation, Priabonian (38.0 - 33.9 Ma)
• "A late Eocene age for much of the Otuma Formation including [the fossiliferous horizon]... is supported by ash beds in the Río Ica Valley south of the Reserva Paracas, with 40Ar-39Ar dates of 37.2 and 36.5 Ma in the lower part of the sequence and an ash with an 40Ar-39Ar date of 35.7 Ma in the upper part of the sequence"
•JA: originally entered as Late Eocene because the older dates might have reached into the Bartonian, but the 2010 IUGS timescale implies they are earliest Priabonian
• bed-level stratigraphic resolution
Environment/lithology: coastal; lithified, fine-grained sandstone
Size class: macrofossils
Preservation: adpression, soft parts
Collection methods: collecting details not given
•reposited in the Museo de Historia Natural-UNMSM, Lima
Primary reference: J. A. Clarke, D. T. Ksepka, R. Salas-Gismondi, A. J. Altamirano, M. D. Shawkey, L. D’Alba, J. Vinther, T. J. DeVries, and P. Baby. 2010. Fossil evidence for evolution of the shape and color of penguin feathers. Science 330 [J. Alroy/J. Alroy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 98346: authorized by John Alroy, entered by John Alroy on 02.10.2010, edited by Mihaela Krause and Mark Uhen
Creative Commons license: CC BY (attribution)
Taxonomic list
Aves | |
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Inkayacu paracasensis n. gen. n. sp.
Inkayacu paracasensis n. gen. n. sp. Clarke et al. 2010 penguin | |
Actinopteri | |
Sardinops sp. Hubbs 1929 herring | |
Osteichthyes | |
Engraulis sp. Cuvier 1817 | |
Chondrichthyes | |
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Gastropoda | |
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"Ectinochilus sp." = Rimella2
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Peruchilus culberti Olsson 1931 snail | |
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Bivalvia | |
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