The Rabekke Formation is the lowermost formation of the Nyker Group. It dates to about 146 to 145 million years ago, at the Jurassic-Cretaceous boundary. The formation has the significance of having the first Scandinavian mammal, Sunnyodon notleyi, uncovered from it. Many crocodilomorphs and other vertebrates have been recovered from it.[2]
The Robbedale Formation is the middle formation of the Nyker Group. It dates to about 145 million years ago. No vertebrate fossils have been recovered from the formation.[1]
The Jydegaard Formation is the uppermost formation of the Nyker Group. It dates to around 145 to 140 million years ago. The first dinosaur found on Denmark, Dromaeosauroides bornholmensis, was discovered in this formation.[1] Many vertebrates have been recovered from it.[2]
^ abcBonde, N.; Christiansen, P. (2003). "New dinosaurs from Denmark". Comptes Rendus Palevol. 2: 13. doi:10.1016/S1631-0683(03)00009-5.
^ abMilàn, J.; Rasmussen, B.W.; Bonde, N. (2012) "Coprolites with prey remains from coprophagous organisms from the Lower Cretaceous (Late Berriasian) Jydegaard Formation of Bornholm, Denmark". New Mexico Museum of Natural History and Science. Bulletin57: 235-240
January 01, 1970
nyker, group, group, geological, formations, from, early, cretaceous, about, million, years, island, bornholm, denmark, includes, rabekke, robbedale, jydegaard, formations, stratigraphic, range, latest, jurassic, early, cretaceous, preꞒ, ntypegeological, units. The Nyker Group is a group of geological formations from the Early Cretaceous about 146 to 140 million years ago It is on the island of Bornholm Denmark It includes the Rabekke Robbedale and Jydegaard Formations 1 Nyker GroupStratigraphic range Latest Jurassic Early Cretaceous 146 140 Ma PreꞒ Ꞓ O S D C P T J K Pg NTypeGeological unitSub unitsRabekke Robbedale amp Jydegaard FormationsUnderliesArnager Greensand FormationOverliesBaga FormationLithologyPrimaryClaystone sandstoneLocationRegionBornholmCountry Denmark Contents 1 Rabekke Formation 2 Robbedale Formation 3 Jydegaard Formation 4 See also 5 ReferencesRabekke Formation editMain article Rabekke Formation The Rabekke Formation is the lowermost formation of the Nyker Group It dates to about 146 to 145 million years ago at the Jurassic Cretaceous boundary The formation has the significance of having the first Scandinavian mammal Sunnyodon notleyi uncovered from it Many crocodilomorphs and other vertebrates have been recovered from it 2 Robbedale Formation editMain article Robbedale Formation The Robbedale Formation is the middle formation of the Nyker Group It dates to about 145 million years ago No vertebrate fossils have been recovered from the formation 1 Jydegaard Formation editMain article Jydegaard Formation The Jydegaard Formation is the uppermost formation of the Nyker Group It dates to around 145 to 140 million years ago The first dinosaur found on Denmark Dromaeosauroides bornholmensis was discovered in this formation 1 Many vertebrates have been recovered from it 2 See also editList of fossiliferous stratigraphic units in DenmarkReferences edit a b c Bonde N Christiansen P 2003 New dinosaurs from Denmark Comptes Rendus Palevol 2 13 doi 10 1016 S1631 0683 03 00009 5 a b Milan J Rasmussen B W Bonde N 2012 Coprolites with prey remains from coprophagous organisms from the Lower Cretaceous Late Berriasian Jydegaard Formation of Bornholm Denmark New Mexico Museum of Natural History and Science Bulletin 57 235 240 Retrieved from https en wikipedia org w index php title Nyker Group amp oldid 998585059, wikipedia, wiki, book, books, library,
