Petrography and geochemistry of fossil bones from the Pisco Fossil-Lagerstätte (Peru)

 

Giulia Bosio, Anna Gioncada, Giovanni Bianucci

Dipartimento di Scienze della Terra, Università di Pisa, 56126 Pisa, Italy. 
G. Bosio:  https://orcid.org/0000-0001-8067-4926

A. Giocada: https://orcid.org/0000-0002-8513-7377

G. Bianucci: https://orcid.org/0000-0001-7105-0863.

 

How to cite: Bosio et al. (2020). Petrography and geochemistry of fossil bones from the Pisco Fossil-Lagerstätte (Peru). Fossilia, Volume 2020: 5-8. https://doi.org/10.32774/FosRepPal.2020.0602


Bullet-Points Abstract
  • Different bone types are recognized based on color, hardness, petrography and
    REE content.
  • Fossil bones from the same Lagerstätte have undergone different fossilization
    paths.
  • The permeability of the sediment affected the bone preservation.

Keywords: bioapatite; marine vertebrates; taphonomy; Miocene; East Pisco Basin.


 
 

Fig. 1. A. Thin section of compact bone tissue from a fossil cetacean pinkish and fragile rib preserved in a low permeability sediment (volcanic ash layer), under transmitted and plane-polarized light. B. Thin section of cancellous bone tissue from a fossil cetacean red and moderately hard rib preserved in a high-permeability sediment (sandstone), under transmitted and planepolarized light. Note the Fe-oxides, ghosts of pyrite framboids.


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