Shapaja TAR-74 (Eocene of Peru)

Also known as TAR-74

Where: San Martin, Peru (6.6° S, 76.3° W: paleocoordinates 8.9° S, 69.0° W)

• coordinate stated in text

• small collection-level geographic resolution

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

• group of beds-level stratigraphic resolution

Environment/lithology: lacustrine - large; nodular, yellow, blue conglomerate and coarse-grained sandstone

• fauna suggests freshwater environment.
• unconsolidated nodule-rich blue to yellowish micro conglomerate below coarse-grained beige sandstone channels, with oxidised leaf litter and pyrite crystals

Size classes: macrofossils, mesofossils, microfossils

Collected in 2018-2019

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 225588: authorized by Philip Mannion, entered by Grace Varnham on 18.05.2022, edited by Kateryn Pino

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Serrasalminae indet., Plantae indet.
Plantae indet. Haeckel 1866
wood (silicified)
Angiospermae
 Malpighiales - Elatinaceae
Elatinaceae (cf. Elatine) sp.
Elatinaceae (cf. Elatine) sp. Cambessedes 1829 waterwort
seed
Charophyceae
  -
Charophyceae indet.
Charophyceae indet. Smith 1938
oogonia
Actinopteri
 Teleostei -
Characiformes indet.
Characiformes indet. Regan 1911
tooth
 Characiformes - Cynodontidae
cf. Hydrolycus sp.
cf. Hydrolycus sp. Lundberg 1997
teeth
 Characiformes - Anostomidae
cf. Leporinus sp., Leporinus sp.
cf. Leporinus sp. Lundberg 1997
teeth
Leporinus sp. Lundberg 1997
teeth
Amphibia
 Salientia -
Anura indet.
Anura indet. Fischer von Waldheim 1813 frog
Proximal humerus
Reptilia
 Loricata -
Eusuchia indet.
Eusuchia indet. crocodilian
Gavialoidea/longirostrine Crocodyloidea (tooth)
 Loricata - Sebecidae
Sebecidae indet.
Sebecidae indet. Savage 1951 crocodilian
tooth fragment
Mammalia
  -
Mammalia indet.
Mammalia indet. Linnaeus 1758 mammal
(?desmostylian-like tooth fragment
 Notoungulata -
Typotheria "indet. morph 1", Typotheria "indet. Interatheriidae/Hegetotheriidae ", Toxodontia indet.
Typotheria "indet. morph 1" Zittel 1892 notoungulate
tooth fragments
Typotheria "indet. Interatheriidae/Hegetotheriidae " Zittel 1892 notoungulate
tooth fragment
Toxodontia indet. Ameghino 1887 notoungulate
tooth fragments
 Notoungulata - Leontiniidae
Leontiniidae indet.
Leontiniidae indet. Ameghino 1894 notoungulate
right p3 and tooth fragment
 Rodentia -
Caviomorpha indet.
 Rodentia - Agoutidae
? Eoincamys "sp. 1"
? Eoincamys "sp. 1" Frailey and Campbell 2004 caviomorph
 Rodentia -
Eobranisamys romeropittmanae
Eobranisamys romeropittmanae Frailey and Campbell 2004 caviomorph
 Cingulata - Dasypodidae
Dasypodidae indet.
Dasypodidae indet. Gray 1821 armadillo
scutes
 Theriamorpha -
Marsupialiformes indet.
Marsupialiformes indet. Vullo and Gheerbrant 2009 metatherian
upper premolar
 Polydolopimorphia - Prepidolopidae
Prepidolopidae indet.
Prepidolopidae indet. Pascual 1980 metatherian
upper molar
Osteichthyes
 Ceratodontiformes - Lepidosirenidae
Lepidosirenidae indet.
Lepidosirenidae indet. Stirton 1953 Australian lungfish
dental plate fragment
Gastropoda
  -
Gastropoda indet.
Gastropoda indet. Cuvier 1795 snail
inner cast
Malacostraca
 Decapoda - Trichodactylidae
Trichodactylidae indet.
Trichodactylidae indet. Milne-Edwards 1853 crab
claw and shell fragments