Calizas de Lychnus Formation
# Calizas de Lychnus Formation

The Calizas de Lychnus Formation is a Maastrichtian geologic formation in northern central Spain. Dinosaur remains diagnostic to the genus level are among the fossils that have been recovered from the formation.

## Fossil content

### Dinosaurs

* cf. Euronychodon sp.
* cf. Paranoychodon sp. (?Troodontidae indet.)
* ?Hypselosaurus sp.
* Nodosauridae indet.
* Rhabdodontidae indet.
* Titanosauridae indet.
* Dinosauria indet.
* Sauropoda indet.
* ?Dromaeosauridae indet.

**Invertebrates**

* Bithynella sp.
* Physa cf. patula

**Fish**

* Actinopterygii indet.

**Other reptiles**

* Acynodon lopezi
* Crocodylia indet.
* Eusuchia indet.
* Testudines indet.

**Mammals**

* Labes quintanillensis
* ?Palaeoryctidae indet.

**Flora**

* Typha sp.
* Arecaceae indet.
* Charophyta indet.
