Jydegaard Formation
| Jydegaard Formation Stratigraphic range: Early Cretaceous, 145–140 Ma |
|
|---|---|
| Type | Geological Formation |
| Unit of | Nyker Group |
| Underlies | Arnager Greensand Formation |
| Overlies | Robbedale Formation |
| Lithology | |
| Primary | Claystone and Sandstone |
| Location | |
| Region | Bornholm |
| Country |
 Denmark
|
The Jydegaard Formation (also spelt as Jydegård) is a geological formation dating to the Early Cretaceous, about 145 to 140 million years ago. It is on the island of Bornholm, Denmark. Vertebrate fossils have been found in the formation.
Thin bone fragments have been uncovered that may belong to pterosaurs or birds.
A tooth possibly belonging to a juvenile titanosaur has been found in the formation.
D. bornholmensis
Two teeth and possible coprolites.
unknown
Robbedale
A tooth tentatively referred to Pholidosaurus
Fish remains have been found in coprolites possibly belonging to the dromaeosaur Dromaeosauroides or marine turtles. Also, unidentified pycnodont jaws and two small stem-teleosteans have been uncovered. Amioid scales have also been revealed.
L. sp
Robbedale
Teeth, jaws and scales
unknown
Robbedale
Teeth and scales
P. rugianus
Robbedale
Teeth, finspines and head "hooks"
P. serrata
Robbedale
unknown
Unidentified turtle carapaces have been uncovered in the Formation.
A lower jaw from a lizard has been recovered from the formation.
unknown
Robbedale
many specimens
Neomiodon specimens are thought to be victim to a mass mortality such as poisoning.
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Wikipedia