The Jydegaard Formation (also spelled as 'Jydegård') is a geological formation dating to the Early Cretaceous, about 145–139 million years ago. It is on the island of Bornholm, Denmark. Vertebrate fossils have been found in the formation.
Fossil content Thin bone fragments have been uncovered that may belong to pterosaurs or birds.
Dinosaurs A tooth possibly belonging to a juvenile titanosaur has been found in the formation.
Genus Species Location Material Description ImagesDromaeosauroidesD. bornholmensisRobbedaleTwo teeth and possible coprolites.
Crocodylomorphs Genus Species Location Material Description ImagesPholidosaurusunknownRobbedaleA tooth tentatively referred to Pholidosaurus
Fish 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.
Genus Species Location Material Description ImagesLepidotesL. spRobbedaleTeeth, jaws and scalesHybodusunknownRobbedaleTeeth and scalesParvodusP. rugianus RobbedaleTeeth, finspines and head "hooks"PleuropholisP. serrata Robbedaleunknown
Turtles Unidentified turtle carapaces have been uncovered in the Formation.
Lizards A lower jaw from a lizard has been recovered from the formation.
Bivalves Genus Species Location Material Description ImagesNeomiodonunknownRobbedalemany specimensNeomiodon specimens are thought to be victim to a mass mortality such as poisoning.ViviparusunknownRobbedalemany specimensViviparus specimens are thought to be victim to a mass mortality such as poisoning.
See also List of fossiliferous stratigraphic units in Denmark
References
Further reading J. Rees. 2000. An Early Cretaceous scincomorph lizard dentary from Bornholm, Denmark. Bulletin of the Geological Society of Denmark 48:105-109