Höganäs Formation

The Höganäs Formation is a Late Triassic to Early Jurassic geologic formation in Skåne, Sweden. Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.[1]

Höganäs Formation
Stratigraphic range: Rhaetian-Hettangian
~202–199 Ma
↓
TypeGeological formation
Sub-unitsBjuv, Helsingborg & Vallåkra members
UnderliesRya Formation
Lithology
PrimarySandstone
OtherShale, coal
Location
Coordinates56.1°N 12.7°E / 56.1; 12.7
Approximate paleocoordinates44.6°N 8.5°E / 44.6; 8.5
RegionSkåne
Country Sweden
Höganäs Formation (Sweden)

Description

The Höganas Formation was deposited in what is now the southern part of Sweden Skåne. The formation straddles the Triassic-Jurassic boundary and has provided evidence of widespread mire-forest deterioration that began in the latest Rhaetian.[2] The upper part of the Höganas Formation is correlated with the Rønne Formation of Bornholm, which is administered by Denmark. The Hóganas Formation is rich in coal and has provided many fossil flora.[3]

Fossil content

Ichnofossils

Tracks discovered in the Höganäs Formation have been assigned to the ichnogenus Grallator (Eubrontes) cf. giganteus, which were discovered in Rhaetian strata, and Grallator (Eubrontes) soltykovensis, which were discovered in Hettangian strata.[4] A few of the tracks were taken to museums, but most of them disappeared in natural floodings.[5] In 1994, Gierlinski and Ahlberg assigned these tracks from the Hoganas Formation of Sweden to Dilophosaurus as well.[6]

Vertebrate paleofauna
Vertebrates
GenusSpeciesLocationStratigraphic positionMaterialNotesImages
Sauropoda?[7] Indeterminate 4 dorsal vertebrae from a medium-sized sauropod, Vertebral column, not collected.
Color key
Taxon Reclassified taxon Taxon falsely reported as present Dubious taxon or junior synonym Ichnotaxon Ootaxon Morphotaxon
 Notes
Uncertain or tentative taxa are in small text; crossed out taxa are discredited.
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See also

References
  1. Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.
  2. Petersen & Lindström, 2012, p.8
  3. Petersen & Lindström, 2012, p.9
  4. Gierliński, G.; Ahlberg, A. (1994). "Late triassic and early jurassic dinosaur footprints in the höganäs formation of southern Sweden". Ichnos. 3 (2): 99. doi:10.1080/10420949409386377.
  5. http://kentlundgren.blogspot.se/2012/03/kontakt-med-trias-och-jura.html
  6. Glut, D. F. (1999). Dinosaurs, the Encyclopedia, Supplement 1: McFarland & Company, Inc., 442pp.
  7. E. Bölau. 1954. The first finds of dinosaurian skeletal remains in the Rhaetic-Liassic of N.W. Scania. Geologiska Föreningen i Stockholm Förhandlingar

Bibliography
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