Shapaja TAR-72 (Eocene of Peru)

Also known as TAR-72

Where: San Martín, Peru (6.6° S, 76.3° W: paleocoordinates 9.0° S, 69.1° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Mustersan mammal zone, Pozo Shale Member (Pozo Formation), Late/Upper Eocene (37.2 - 33.9 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; conglomerate

• The poor palynomorph recovery at TAR-72 is compatible with understory vegetation in a tropical rainforest (Fungi monocellate and fern spores) and with seasonal water-table fluctuation.
• Yellow to blueish microconglomerate with gypsum and clays.

Size class: macrofossils

Collected in 2018

Primary reference: P. -O. Antoine, J. Yans, A. A. Castillo, N. Stutz, M. A. Abello, S. Adnet, M. A. Custódio, A. Benites-Palomino, G. Billet, M. Boivin, F. Herrera, C. Jaramillo, C. Mártinez, F. Moreno, R. E. Navarrete, F. R. Negri, F. Parra, F. Pujos, J. Rage, A. M. Ribeiro, C. Robinet and M. Rod. 2021. Biotic community and landscape changes around the Eocene–Oligocene transition at Shapaja, Peruvian Amazonia: Regional or global drivers?. Global and Planetary Change 202:103512 [P. Mannion/G. Varnham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 225589: authorized by Philip Mannion, entered by Grace Varnham on 18.05.2022

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Psilatriletes
  -
Psilatriletes sp. Potonié 1956
Magnoliopsida
  -
unclassified
  -
Mollusca indet. Linnaeus 1758
bivalve or gastropod shell fragments
Gastropoda
  -
Gastropoda indet. Cuvier 1795 snail
turriform snail
Chondrichthyes
 Myliobatiformes - Myliobatidae
Myliobatis sp. Cuvier 1816 eagle ray
neonate tooth
Osteichthyes
 Ceratodontiformes - Lepidosirenidae
Lepidosirenidae indet. Stirton 1953 Australian lungfish
Mammalia
 Theriamorpha -
"Meridiungulata" indet. McKenna 1975 eutherian
 Rodentia - Agoutidae
Eoincamys valverdei Boivin et al. 2018 caviomorph
 Rodentia -
Tarapotomys subandinus Boivin et al. 2018 caviomorph
 Placentalia -
Notoungulata indet. Roth 1903 notoungulate
 Metatheria -
 Polydolopimorphia - Argyrolagidae
cf. Proargyrolagus sp. Wolff 1984 metatherian
 Theriamorpha - Herpetotheriidae
Reptilia
 Loricata - Sebecidae
cf. Sebecus sp. Stirton 1953 crocodilian
 Loricata -
Eusuchia indet. crocodilian
Gavialoidea/ longirostrine Crocodyloidea (tooth),
 Crocodylia - Alligatoridae
Caimaninae "indet. new genus new species" Brochu 1999 crocodilian
leaf-shaped teeth
Actinopteri
 Characiformes - Anostomidae
Leporinus sp. Lundberg 1997
teeth
 Characiformes - Cynodontidae
cf. Hydrolycus sp. Lundberg 1997
teeth
unclassified
  -
Fungi indet. Jahn and Jahn 1959