On this Spanish beach of Early Cretaceous, something strange is happening. 

A blossoming of bioluminescent dinoflagellates (plancton) is colouring the waves with blue neon shades. 

This extraordinary event has caught the attention of some animals that live in the area.

A couple of Baryonyx walkeri is studying the strange bioluminescent phenomenon. One of them is walking parallel to the wave-line, leaving some deep footprints on the moist sand.

With the preassure of the dinosaur foot, the bioluminescent plancton releases its light making Baryonyx's footprints glow in the dark.

A large Arcanosaurus ibericus (a Cretaceous varanoid) is patrolling the beach in search of some nests to pillage or some small animals to eat. It is taking advantage of the situation to get over the distracted theropods, unseen.

In the distance, a group of Hypselospinus fittoni (an iguanodontian) is walking toward the waves, maybe to have a quick dip in the sea under the moonlight.

The unexpected protagonist of this painting though, is the footprint on the sand. In the same site, million of years later those same footprints would have had found by paleontologists, an immortal sign of the passage of those animals.

Baryonyx walkeri is a theropod dinosaur that lived in Europe during the Early Cretaceous.

Its geographical distribution was pretty large across Europe. Its fossils have been found in England and Spain. Actually Europe at that time was quite a good place for Baryonyhchines and more in general for Spinosaurids. Apart from Braryonyx walkeri, at least 5 new european species have been found and described in the last 10 years: Villabonavenatrix cani and Camarillasaurus cirugedae from Spain; Iberospinus natarioi from Portugal; Riparovenator milnerae and Ceratosuchops inferodios from England.

Baryonyx probably used to feed mainly on fish and other water animals, as almost every other Spinosaurid. It snatched fish with its long and croc-like jaws like a huge heron. 

was a varanoid that lived in Spain during the Early Cretaceous.

It is probable tha tin life would have looked very similar to a modern large monitor lizard, like the Lace Monitor (Varanus varius), the Crocodile Monitor (Varanus salvadorii) or the Perentie (Varanus giganteus).

was a species of iguanodontians that lived in Western Europe during the Early Cretaceous. 

It was discovered in 1889, but at that time it was just another species of Iguanodon. In 2020 was described as a new genus: Hypselospinus.

It was smaller and more light-builted ornithopod than the more famous Iguanodon bernissartensis.