Itapecuru Formation
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The Itapecuru Formation is a geological formation in Itapecuru Mirim, Maranhão, Brazil.
It was formed during the Aptian to Albian stages of the Early Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation.
Fossil content
| Color key Taxon Reclassified taxon Taxon falsely reported as present Dubious taxon or junior synonym Ichnotaxon Ootaxon Morphotaxon | Notes Uncertain or tentative taxa are in small text; crossed out taxa are discredited. | |||||
| Taxon | Reclassified taxon | Taxon falsely reported as present | Dubious taxon or junior synonym | Ichnotaxon | Ootaxon | Morphotaxon |
Dinosaurs
Sauropods
| Sauropods of the Itapecuru Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Amazonsaurus | A. maranhensis | A rebbachisaurid sauropod | Amazonsaurus Dasosaurus | |||
| Dasosaurus | D. tocantinensis | Lower | A partial skeleton | A somphospondylian sauropod | ||
| Sauropoda indet. | Indeterminate |
Theropods
| Theropods of the Itapecuru Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Abelisauridae Indet. | Indeterminate | |||||
| Carcharodontosauridae Indet. | Indeterminate | Tooth | ||||
| Oxalaia | O. quilombensis | A spinosaurin spinosaurine | ||||
| Theropoda indet. | Indeterminate |
Crocodylomorphs
| Crocodylomorphs of the Itapecuru Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Candidodon | C. itapecuruense | A candidodontid notosuchian |
Mosasaurs
| Mosasaurs of the Itapecuru Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Mosasauridae Indet. | Indeterminate | An indeterminate mosasaurid |
Plesiosaurs
| Plesiosaurs of the Itapecuru Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Brachaucheninae Indet. | Indeterminate | A brachauchenine thalassophonean |
Turtles
| Turtles of the Itapecuru Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Araripemys | A. barretoi | A araripemydid side-necked turtle | ||||
| Itapecuruemys | I. amazoniensis | A cearachelyin bothremydine |
Fish
| Fishes of the Itapecuru Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Arganodus | A. tiguidiensis | A arganodontid lungfish | ||||
| Ceratodus | C. africanus | A ceradodontid lungfish | ||||
| Mawsonia | M. gigas | A mawsoniid coelacanth |
See also
- Geologic formations of Brazil
- List of dinosaur-bearing rock formations