Alfredo Marcondes outcrop (AM1): Late/Upper Campanian - Early/Lower Maastrichtian, Brazil
collected 2001

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Testudines
cf. Roxochelys sp. Price 1953
Bogado et al. 2023
Reptilia - Titanosauridae
Titanosauridae indet. Lydekker 1885
Candeiro et al. 2004 2 specimens
UFRJ-DG 333-Rd, UFRJ-DG409-R
Reptilia - Theropoda
Theropoda indet. Marsh 1881
2 specimens
UFRJ-DG 375-Rd
Reptilia - Carcharodontosauridae
cf. Carcharodontosauridae indet. Stromer 1931
Furtado et al. 2013 4 specimens
UFRJ-DG 560-Rd, 561-Rd, 570-Rd, 593-Rd
Reptilia
Coelurosauria indet. (Huene 1914)
Fernandes de Azevedo et al. 2013 1 specimen
UFRJ-DG 390-R, proximal portion of a right fibula
cf. Abelisauroidea indet. Bonaparte 1991
Alves et al. 2016 2 specimens
UFRJ-DG 598-R(d), 599-R(d)
Reptilia - Abelisauridae
Abelisauridae indet. Bonaparte and Novas 1985
Candeiro et al. 2004 3 specimens
UFRJ-DG 377-Rd, 378-Rd, 499-Rd
    = Abelisauridae informal indet. 1 Bonaparte and Novas 1985
Delcourt et al. 2024
Carcharodontosauridae indet. Stromer 1931
Candeiro et al. 2004 1 specimen
UFRJ-DG 379-Rd; UFRJ-DG 409-R (right maxilla)
    = Tetanurae indet. Gauthier 1986
Carrano et al. 2012
    = Abelisauridae indet. Bonaparte and Novas 1985
Delcourt and Grillo 2018
Abelisauridae informal indet. 3 Bonaparte and Novas 1985
Delcourt et al. 2024 1 specimen
UFRJ-DG 376-Rd
Reptilia
Notosuchia indet. (Gasparini 1971)
Alves et al. 2016 1 specimen
UFRJ-DG 594-R(d)
Itasuchus cf. jesuinoi Price 1955
Pinheiro et al. 2023
UFRJ DG 687-R
Crocodylomorpha indet. (Hay 1930)
    = Roxochampsa paulistanus Roxo 1935
Piacentini Pinheiro et al. 2018
UFRJ-DG 451-R and 501-R (partial mandibles)
cf. Roxochampsa paulistanus (Roxo 1935)
Pinheiro et al. 2023
FFP PG 93
Actinopteri - Lepisosteiformes - Lepisosteidae
Lepisosteidae indet. Cuvier 1825
Alves et al. 2016 3 specimens
UFRJ-DG 360-P(e), UFRJ-DG 354-P(e), UFRJ-DG 354-P(e)
see common names

Geography
Country:Brazil State/province:São Paulo
Coordinates: 21.9° South, 51.4° West (view map)
Paleocoordinates:26.0° South, 34.5° West
Basis of coordinate:stated in text
Geographic resolution:outcrop
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Key time interval:Late/Upper Campanian - Early/Lower Maastrichtian
Age range of interval:83.60000 - 66.00000 m.y. ago
Stratigraphy
Geological group:Bauru Formation:Presidente Prudente
Stratigraphic resolution:group of beds
Stratigraphy comments: Note that some authors (e.g. Piacentini Pinheiro et al. 2018) have regarded this unit as the Presidente Prudente Formation, but others refer it to the Adamantina Formation.

Whereas a Turonian–Santonian age for the Adamantina Formation, based on ostracods and charophytes, has been proposed (Dias-Brito et al. 2001), other authors have argued for a Campanian–Maastrichtian age, based on vertebrate fossils and an alternative interpretation of the ostracod fauna (e.g. Gobbo-Rodrigues et al. 1999; Fernandes and Coimbra 2000). Most recently, stratigraphic work on the Bauru Basin has argued for a late Campanian–early Maastrichtian age for this stratigraphic unit (Batezelli 2017).

Fourth Crocodyliform Assemblage Zone (CAZ4 from Pinheiro et al., 2021)
Lithology and environment
Primary lithology:planar lamination,fine,red conglomeratic sandstone
Includes fossils?Y
Lithology description: "fine, reddish sandstones, sometimes conglomerate, with plane-parallel laminations"
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Size of fossils:mesofossils
Collection methods and comments
Collection excludes:all macrofossils
Collection methods:selective quarrying,mechanical,field collection
Reason for describing collection:taxonomic analysis
Collection dates:2001
Metadata
Database number:57003
Authorizer:M. Carrano, E. Vlachos, P. Mannion Enterer:K. Maguire, J. Tennant, E. Vlachos, P. Mannion, M. Carrano
Modifier:M. Carrano Research group:vertebrate
Created:2005-11-30 12:49:37 Last modified:2024-02-12 15:14:31
Access level:the public Released:2005-11-30 12:49:37
Creative Commons license:CC BY
Reference information

Primary reference:
34327.ETE S. R. Torres, V. C. Martins, E. B. Almeida, C. T. S. Abranches, and L. P. Bergqvist. 2003. Resultados da expedição no oeste do Estado de São Paulo (Formação Adamantina, Bacia Bauru) [Results of the expedition to the west of São Paulo State (Adamantina Formation, Bauru Basin)]. XVIII Congresso Brasileiro de Paleontologia: A Paleontologia e Suas Aplicações, 13-18 July 2003. Sociedade Brasileira de Paleontologia, Universidade de Brasília. Boletim de Resumos 308-309 [M. Carrano/M. Carrano]

Secondary references:

82453 Y. M. Alves, L. P. Bergqvist, and P. M. Brito. 2016. New occurrences of microvertebrate fossil accumulations in Bauru Group, Late Cretaceous of western São Paulo state, Brazil. Journal of South American Earth Sciences 69:80-90 [M. Carrano/M. Carrano]
85786 J. Amudeo-Plaza, S. Soto-Acuña, R. Ugalde, P. Martínez, and D. Rubilar-Rogers. 2023. Reassessment of theropod material from Pichasca, northern Chile: presence of Abelisauridae (Theropoda: Ceratosauria) from the Quebrada La Totora Beds (Albian–Turonian). Journal of South American Earth Sciences 129 [M. Carrano/M. Carrano]
85560 J. P. Bogado, P. V. L. Gomes da Costa Pereira, M. S. Fuente and L. Paglarelli Nergqvist. 2023. New records of Testudines from the Presidente Prudente Formation of the Bauru Group (Late Cretaceous), with a revised diagnosis for Roxochelys wanderleyi and palaeoichnological remarks. Journal of South American Earth Sciences 128(104478):1-21 [E. Vlachos/E. Vlachos]
15256ETE C. R. A. Candeiro, C. T. Abranches, E. A. Abrantes, L. S. Avilla, V. C. Martins, A. L. Moreira, S. R. Torres and L. P. Bergqvist. 2004. Dinosaurs remains from western São Paulo state, Brazil (Bauru Basin, Adamantina Formation, Upper Cretaceous). Journal of South American Earth Sciences 18:1-10 [M. Carrano/K. Maguire/M. Carrano]
19242ETE C. R. A. Candeiro, A. G. Martinelli, L. S. Avilla and T. H. Rich. 2006. Tetrapods from the Upper Cretaceous (Turonian–Maastrichtian) Bauru Group of Brazil: a reappraisal. Cretaceous Research 27:923-946 [M. Carrano/M. Carrano]
41617 M. T. Carrano, R. B. J. Benson, and S. D. Sampson. 2012. The phylogeny of Tetanurae (Dinosauria: Theropoda). Journal of Systematic Palaeontology 10(2):211-300 [M. Carrano/M. Carrano]
87541 R. Delcourt, N. S. Brilhante, R. A. Pires-Domingues, C. Hendrickx, O. N. Grillo, B. G. Augusta, B. S. Maciel, A. M. Ghilardi, and F. Ricardi-Branco. 2024. Biogeography of theropod dinosaurs during the Late Cretaceous: evidence from central South America. Zoological Journal of the Linnean Society [M. Carrano/M. Carrano]
77388 R. Delcourt and O. N. Grillo. 2018. Reassessment of a fragmentary maxilla attributed to Carcharodontosauridae from Presidente Prudente Formation, Brazil. Cretaceous Research 84:515-524 [M. Carrano/M. Carrano]
78154 R. P. Fernandes de Azevedo, F. M. Simbras, M. R. Furtado, C. R. A. Candeiro, and L. P. Bergqvist. 2013. First Brazilian carcharodontosaurid and other new theropod dinosaur fossils from the Campanian–Maastrichtian Presidente Prudente Formation, São Paulo State, southeastern Brazil. Cretaceous Research 40:131-142 [M. Carrano/M. Carrano]
49309 M. R. Furtado, C. R. A. Candeiro, and L. P. Bergqvist. 2013. Teeth of Abelisauridae and Carcharodontosauridae cf. (Theropoda, Dinosauria) from the Campanian- Maastrichtian Presidente Prudente Formation (southwestern São Paulo State, Brazil). Estudios Geológicos 69(1):105-114 [M. Carrano/M. Carrano]
66495 A. E. Piacentini Pinheiro, P. V. L. G. C. Pereira, R. G. Souza, A. S. Brum, R. T. Lopes, A. S. Machado, L. P. Bergqvist, and F. M. Simbras. 2018. Reassessment of the enigmatic crocodyliform "Goniopholis" paulistanus Roxo, 1936: Historical approach, systematic, and description by new materials. PLoS ONE 13(8):e0199984:1-45 [P. Mannion/P. Mannion/P. Mannion]
83607 A. E. P. Pinheiro, P. V. L. G. C. Pereira, F. M. Vasconcellos, A. S. Brum, L. G. Souza, F. R. Costa, L. O. R. Castro, K. F. Silva and K. L. N. Bandeira. 2023. New Itasuchidae (Sebecia, Ziphosuchia) remains and the radiation of an elusive Mesoeucrocodylia clade. Historical Biology [P. Mannion/P. Mannion]
86329 T. B. Ribeiro, P. M. M. Brito, and P. V. L. G. Costa Pereira. 2023. The predominance of teeth in the non-avian dinosaur record from Cretaceous Brazil: a review. Historical Biology [M. Carrano/M. Carrano]