# Moreno Formation

The Moreno Formation is a Mesozoic geologic formation located in San Joaquin Valley (California). Dinosaur remains diagnostic to the genus level are among the fossils that have been recovered from the formation.

## Paleofauna

| 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. |

### Cartilaginous fish

Cartilaginous fishes reported from the Moreno Formation :
| Genus | Species | Location | Member | Material | Notes | Images |
| Heptranchias | H. sp | | | | | |

### Ray-finned fish

Ray-finned fishes reported from the Moreno Formation :
| Genus | Species | Location | Member | Material | Notes | Images |
| Bonnerichthys | B. gladius | | | | A large, filter-feeding pachycormid. | Bonnerichthys |
| Saurodon | S. sp. | | | | An ichthyodectid. | Saurodon |

### Dinosaurs

Dinosaurs reported from the Moreno Formation :
| Genus | Species | Location | Member | Material | Notes | Images |
| Augustynolophus | A. morrisi | | | | saurolophine. | Augustynolophus |
| Saurolophus | S. morrisi | | | | Reclassified as Augustynolophus morrisi. | |

### Mosasaurs

Mosasaurs reported from the Moreno Formation :
| Genus | Species | Notes | Images |
| Kolposaurus | K. bennisoni | The name Kolposaurus was preoccupied and its two constituent species moved to the new genus Plotosaurus. | |
| Kolposaurus | K. tuckeri | The name Kolposaurus was preoccupied and its two constituent species moved to the new genus Plotosaurus. | |
| Plesiotylosaurus | P. crassidens | | Plesiotylosaurus crassidens |
| Plotosaurus | P. bennisoni | | Plotosaurus bennisoni |
| Plotosaurus | P. tuckeri | A junior synonym of P. bennisoni. | Plotosaurus bennisoni |
| Prognathodon | P. cf. waiparaensis | | |
| cf. Mosasaurus | cf. M. sp. | | |
| Halisaurus | H. sp. | | |

### Plesiosaurs

Plesiosaurs reported from the Moreno Formation :
| Genus | Species | Images |
| Aphrosaurus | A. furlongi | Aphrosaurus |
| Fresnosaurus | F. drescheri | Fresnosaurus |
| Hydrotherosaurus | H. alexandrae | Hydrotherosaurus |
| Morenosaurus | M. stocki | Morenosaurus |

### Turtles

Testudines reported from the Moreno Formation :
| Genus | Notes |
| Adocus | J. Howard Hutchison later referred the specimen originally identified as Adocus by to the genus Basilemys. |
| Basilemys | |
| Osteopygis | |

### Foraminifera

Forams reported from the Moreno Formation :
| Genus | Species | Member | Notes |
| Anomalina | A. pseudopopillosa | Tierra Loma Shale Member | |
| Bulimina | B. obtusa | Tierra Loma Shale Member | 99% of the foraminifera sampled at the Tierra Loma Shale Member belonged to B. obtusa. |
| Dentalina | D. legumen | Tierra Loma Shale Member | |
| Frondicularia | F. undulosa | Tierra Loma Shale Member | |
| Gyroidina | G. depressa | Tierra Loma Shale Member | |
| Nodosaria | N. monile | Tierra Loma Shale Member | |
| Nodosaria | N. pomuligera | Tierra Loma Shale Member | |
| Nodosaria | N. spinifera | Tierra Loma Shale Member | |
| Nodosaria | N. sp | Tierra Loma Shale Member | |
| Nodosarella | N. sp | Tierra Loma Shale Member | |