CTA-44 Base (Miocene to of Peru)

Where: Peru (7.4° S, 75.0° W: paleocoordinates 7.9° S, 72.4° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: MZ8-9 zone, Pebas Formation, Middle Miocene to Middle Miocene (16.0 - 7.2 Ma)

• "latest middle Miocene, Pebasian based on molluscs (MZ8-9; Wesselingh et al., 2006: 304; ~12.2-11 Ma). “Marginal Pebas” in terms of depositional environment. Coeval and similar to Porvenir (Nauta/Iquitos) and to the base of Los Chorros Section"

Environment/lithology: coastal; lithology not reported

• Coastal channel, marine influence

Size class: mesofossils

Primary reference: P. Antoine, M. A. Abello, S. Adnet, A. J. A. Sierra, P. Baby, G. Billet, M. Boivin, Y. Calderón, A. Candela, J. Chabain, and F. Corfu. 2016. A 60-million-year Cenozoic history of western Amazonian ecosystems in Contamana, eastern Peru. Gondwana Research 31:30-59 [J. Zijlstra/J. Zijlstra/P. Wagner]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 176134: authorized by Jelle Zijlstra, entered by Jelle Zijlstra on 29.01.2016

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Cerithioidea - Thiaridae
Aylacostoma aff. browni Etheridge 1879 snail
Sheppardiconcha sp. Marshall and Bowles 1932 snail
 Cerithioidea - Pachychilidae
Charadreon cf. eucosmius Pilsbry and Olsson 1935 snail
 Sorbeoconcha - Cochliopidae
Bivalvia
 Cardiida - Corbiculidae
Corbiculidae indet. Gray 1847 clam
"Corneocyclas or Cyanocyclas"
Corbicula cf. cojitamboensis clam
"3 paired valves + 4 valves"
Neocorbicula sp. Fischer 1887 clam
 Pholadida - Corbulidae
Pachydon iquitensis de Greve 1938 clam
Pachydon trigonalis Nuttall 1990 clam
Anticorbula sp. Dall 1898 clam
 Unionida - Hyriidae
Diplodon sp. Spix 1827 clam