ammonites
banner
Gateway to the Paleobiology Database
São José de Itaborai (Paleocene to of Brazil)

Also known as Companhia Nacional de Cimento Portland quarry

Where: Rio de Janeiro, Brazil (22.8° S, 42.9° W: paleocoordinates 25.7° S, 31.3° W)

• coordinate stated in text

• local area-level geographic resolution

When: Itaboraian mammal zone, Late/Upper Paleocene to Late/Upper Paleocene (58.7 - 48.6 Ma)

• Late Paleocene marl fillings in Early Paleocene karst

•Itaboraian SALMA

•Middle sequence (S2) of the Itaborai Basin sediments

•Oliveira and Goin argue that it is more likely to be late Paleocene-early Eocene in age

Environment/lithology: fissure fill; marl

• Fissure filling deposits with marls and collapsed breccias whose composition is similar to the gray limestone facies, although poorly consolidated, and transported into these cavities by heavy rains and gravitational flows

Size classes: macrofossils, mesofossils

Collected by Carlos de Paula Couto, Ney Vidal and others in 1948-1950

• Quarry under the management of the Companhia Nacional de Cimento Portland (Maui)

Primary reference: E. V. Oliveira and F. J. Goin. 2011. A reassessment of bunodont metatherians from the Paleogene of Itaborai (Brazil): Systematics and the age of the Itaborian SALMA. Revista Brasileira de Paleontologia 14(2):105-136 [P. Mannion/P. Mannion] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 118314: authorized by Philip Mannion, entered by Philip Mannion on 12.10.2011, edited by Mark Uhen, Gustavo Ballen, Richard Butler and Jelle Zijlstra

Creative Commons license: CC BY (attribution)