Also known as Irritator type site
Where: Ceará, Brazil (7.2° S, 39.3° W: paleocoordinates 8.7° S, 7.6° W)
• coordinate based on nearby landmark
• basin-level geographic resolution
When: Romualdo Formation (Santana Group), Late/Upper Aptian (122.5 - 113.0 Ma)
• From Melo et al. 2020: In summary, this integrated study of foraminifera, ostracodes and other microfossil data from the Romualdo Formation indicates that the local Alagoas Stage (Ostracoda Zone RT-011) can now be constrained to the Aptian. Arai and Assine 2020 also support that the Romualdo Formation is entirely Aptian in age.
• bed-level stratigraphic resolution
Environment/lithology: fluvial-lacustrine; mudstone and concretionary limestone
Size classes: macrofossils, microfossils
Collection methods: mechanical,
Primary reference: D. M. Martill, A. R. I. Cruickshank, E. Frey, P. G. Small, and M. Clarke. 1996. A new crested maniraptoran dinosaur from the Santana Formation (Lower Cretaceous) of Brazil. Journal of the Geological Society, London 153:5-8 [M. Carrano/M. Carrano/M. Carrano]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 28052: authorized by Matthew Carrano, entered by Matthew Carrano on 22.01.2003
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
Irritator challengeri n. gen. n. sp.
| |
Actinopteri | |
Cladocyclus sp. Agassiz 1843 | |
Ostracoda | |
Pattersoncypris sp. Bate 1972 ostracod |