This is the only likely place for dinosaur remains to be discovered on Danish territory, since the Mesozoic deposits exposed in the rest of the country are marine.

The mainland of western Denmark is an unlikely region to find dinosaur remains, since the Mesozoic sediments there are marine Maastrichtian chalk.

The Danish island of Bornholm in the Baltic Sea was part of the same land mass as Scania (the Scandinavian-Russian continent), and has a similar geology.

[2] During the 1990s, the Fossil Project (disbanded in 2005) was formed by a group of unemployed people who received funding from Denmark and the EEC to maintain geological sites on Bornholm.

This formation is 140 million years old, dating to the Late Berriasian (or Ryazanian) stage of the Early Cretaceous period.

During the course, geology student Eliza Jarl Estrup found a theropod tooth, the first dinosaur discovered on Danish territory, and the find was recorded by a local television station.

[9] Since the discovery of Dromaeosauroides, evidence of more dinosaurs has been found in various geological formations on Bornholm, such as additional teeth and footprints from various groups.

[16] Fossil theropod teeth are typically identified according to features including size, proportion, curvature of the crown and the morphology and number of denticles (serrations).

The overall form of the tooth, its width and shape in cross-section and its curvature resemble those in the maxilla (upper jawbone) and mandible of the species Dromaeosaurus albertensis from North America.

[17] As a dromaeosaur, Dromaeosauroides would have had a large sickle claw on its highly mobile second toe, like its relatives Dromaeosaurus, Velociraptor and Deinonychus.

That group is closely related to birds, and the NaturBornholm interpretive centre houses a roughly life-sized sculpture of Dromaeosauroides covered in feathers.

[1] According to Bonde, Dromaeosauroides is one of the oldest known dromaeosaurs in the world; older remains, for the most part, have only tentatively been assigned to Dromaeosauridae.

[11] Bonde responded that since the teeth differ from those of other dromaeosaurs from the Early Cretaceous (and later members of the group, including Dromaeosaurus), it should be considered valid.

He also said that these scientists had provided incorrect information about the location, strata and age of the specimen, and that the circumstances of its naming were no different from those of other tooth-based taxa.

[2] Oliver W. M. Rauhut and colleagues cautioned in 2010 that theropod teeth from the Late Jurassic/Early Cretaceous similar to those of dromaeosaurids may instead have belonged to the small tyrannosauroid Proceratosaurus or related taxa.

In addition to Dromaeosauroides and a possible titanosaur, remains of hybodont sharks, fish such as Lepidotes and Pleuropholis, turtles, lizards, the crocodile Pholidosaurus and thin bone fragments from birds or pterosaurs have been found in the deposit.

Freshwater snails were found in clay that may have been shallow, drying lakes behind a sandy barrier between lagoon and sea, in a setting perhaps similar to the Florida Keys or the southwestern coast of Jutland.

[2] Dinosaurs may have fed there, based on the remains of plants and small land animals, and theropods may have hunted along the shore.