Cover
Title Page
Copyright
Contents
Foreword by James O. Farlow
Acknowledgments
1. Introduction
The Town of Sousa
History of the Paleontological Site
2. Methods
3. Geological Context of the Footprints
The Atlantic Proto-Ocean and the Origin of the Rio do Peixe Basins
Paleoclimate
Petrological Aspects of the Sandstones of the Rio do Peixe Basins
The Sousa Basin
Paleontology and Age of Deposits
Invertebrate Fossils
Paleobotany
Palynomorphs
Vertebrate Fossils
The Dinosaurian Ichnofauna of Sousa Basin and Its Stratigraphic Context

The Uiraúna-Brejo das Freiras (Triunfo) Basin
Paleontology and Age of the Deposits
The Dinosaurian Ichnofauna of Triunfo Basin and Its Stratigraphic Context
Taphonomy and Environmental Setting of the Footprints
The Megatracksite of the Rio do Peixe Basins
Alluvial Fan-Braided Fluvial System
Meandering Fluvial Floodplain-Lacustrine Environments
Tracks and Substrate
Preservation of Dinosaur Tracks Induced by Microbial Mats
Ecological Aspects of the Cretaceous Lakes
Mineral Resources and the Oil of the Sousa Basin

4. The Ichnofaunas of the Rio do Peixe Basins and Their Trackmakers
Sousa Formation
Abreu (SOAB)
Araçá de Cima (ANAC)
Barragem do Domício (ANBD)
Engenho Novo (ANEN)
Juazeirinho (ANJU)
Baixio do Padre (SOBP)
Matadouro (SOMA)
Pedregulho (SOPE)
Piau-Caiçara (SOCA)
Theropod Tracks
Tracks of Small-Size Theropods with Long and Sinuous III Digit
Tracks of Large Theropods
Footprints of Half-Swimming Theropods
Sauropod Tracks
Ornithopod Tracks
Other Ornithopods
Tracks Attributable to Ornithopods or to Large Theropods
Crocodiloid Footprints

Turtle Footprints
The Associations and Behavior of the Dinosaurs at Piau-Caiçara
Piedade (SOPI)
Riverbed of Rio do Peixe between Passagem das Pedras and Poço do Motor
Poço do Motor (SOPM
Passagem das Pedras (SOPP
Morphological Description and Discussion
The Behavior of the SOPM-SOPP Ichnofauna as a Whole
Piau II (SOPU)
Poço da Volta (ANPV
Sitio Saguim (SOSA)
Tapera (APTA)
Várzea dos Ramos (APVR I
formerly SOVR
Várzea dos Ramos II (APVR II)
Várzea dos Ramos III (APVR III)
Zoador (ANZO)
Summary of the Sousa Formation Ichnofauna

Antenor Navarro Formation
Arapuã (UIAR)
Aroeira (ANAR)
Baleia (UIBA)
Grotão (POGR)
Pocinho (UIPO)
Riacho do Cazé (SORC)
Riachão do Oliveira (SORO)
Serrote do Letreiro (SOSL)
Serrote do Pimenta (or Serrote Verde or Estreito Farm) (SOES)
Floresta dos Borba (SOFB)
Summary of the Antenor Navarro Formation Ichnofauna
Rio Piranha Formation
Cabra Assada (ANCA)
Curral Velho (SOCV)
Lagoa do Forno I (SOLF I)
Lagoa do Forno II (SOLF II)
Mãe d'Água (SOMD)
Paraíso Farm (SOFP)
Summary of the Rio Piranhas Formation Ichnofauna