Where: Pernambuco, Brazil (7.6° S, 40.6° W: paleocoordinates 9.0° S, 8.9° W)
• coordinate based on nearby landmark
• local area-level geographic resolution
When: Romualdo Formation (Santana Group), Late/Upper Aptian (122.5 - 113.0 Ma)
• described as "Albian?"
•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.
• member-level stratigraphic resolution
Environment/lithology: lagoonal or restricted shallow subtidal; gray, green, silty mudstone and concretionary limestone
Size class: macrofossils
Preservation: soft parts
Collection methods: mechanical,
Primary reference: D. M. Martill, E. Frey, H.-D. Sues and A. R. I. Cruickshank. 2000. Skeletal remains of a small theropod dinosaur with associated soft structures from the Lower Cretaceous Santana Formation of northeastern Brazil. Canadian Journal of Earth Sciences 37(6):891-900 [M. Carrano/M. Carrano/M. Carrano]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 28050: authorized by Matthew Carrano, entered by Matthew Carrano on 22.01.2003
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
Mirischia asymmetrica n. gen. n. sp.
Mirischia asymmetrica n. gen. n. sp. Naish et al. 2004 compsognathid |