Höganäs Formation

Höganäs Formation
Stratigraphic range: Rhaetian-Hettangian
~202–199 Ma

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Höganäs Formation; Stratigraphic range: Rhaetian-Hettangian; ~202–199 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Type	Geological formation
Sub-units	Bjuv, Helsingborg & Vallåkra members
Underlies	Rya Formation
Lithology
Primary	Sandstone
Other	Shale, coal
Location
Coordinates	56.1°N 12.7°E
Approximate paleocoordinates	44.6°N 8.5°E
Region	Skåne
Country	Sweden
	Höganäs Formation (Sweden)

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]

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
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
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.

References

Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.
Petersen & Lindström, 2012, p.8
Petersen & Lindström, 2012, p.9
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.
http://kentlundgren.blogspot.se/2012/03/kontakt-med-trias-och-jura.html
Glut, D. F. (1999). Dinosaurs, the Encyclopedia, Supplement 1: McFarland & Company, Inc., 442pp.
E. Bölau. 1954. The first finds of dinosaurian skeletal remains in the Rhaetic-Liassic of N.W. Scania. Geologiska Föreningen i Stockholm Förhandlingar

Bibliography

Petersen, Henrik I., and Sofie Lindström. 2012. Synchronous Wildfire Activity Rise and Mire Deforestation at the Triassic–Jurassic Boundary. PLoS ONE 7. 1-15. Accessed 2020-07-02.
Weishampel, David B.; Peter Dodson, and Halszka Osmólska (eds.). 2004. The Dinosauria, 2nd edition, 1–880. Berkeley: University of California Press. Accessed 2019-02-21. ISBN 0-520-24209-2

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[dinosaurdistribution-1] Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.

[Petersen2012-p8-2] Petersen & Lindström, 2012, p.8

[Petersen2012-p9-3] 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] ttp://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