Probable stegosaurian dinosaur tracks from the Saltwick Formation (Middle Jurassic) of Yorkshire, England

Three new dinosaur tracks are described from the Middle Jurassic Bagå Formation of Bornholm, Denmark. The tracks are all preserved as natural casts on the underside of fluvial sandstone blocks originating from the old Hasle Klinkefabrik’s clay pit, now called Pyritsøen. The new tracks are from a medium-sized theropod, a thyreophoran, and a small sauropod. Together with a thyreophoran track and large sauropod tracks described in 2005, the Middle Jurassic dinosaur fauna of Bornholm now comprises theropods, two sizes of sauropods and at least one type of thyreophoran dinosaur. This is important additional data for the very scarce Middle Jurassic dinosaurian skeletal record of Europe.

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Small ornithopod dinosaur tracks and crocodilian remains from the Middle Jurassic Bagå Formation, Bornholm, Denmark: Important additions to the rare Middle Jurassic vertebrate faunas of Northern Europe

Bulletin of the Geological Society of Denmark ◽

10.37570/bgsd-2020-68-11 ◽

2020 ◽

Vol 68 ◽

pp. 245-253

Author(s):

Jesper Milàn ◽

Peter L. Falkingham ◽

Inken Juliane Mueller-Töwe

Keyword(s):

Middle Jurassic ◽

Northern Europe ◽

Vertebrate Fauna ◽

Valuable Addition ◽

Dinosaur Tracks ◽

Important Addition

Two new small tridactyl dinosaur tracks are found in the Middle Jurassic Bagå Formation of Bornholm and are interpreted as ornithopodian in origin. A skeletal fragment is identified as a crocodilian skull fragment. Previous finds of dinosaur tracks from the locality consist of two sizes of sauropods, a medium sized theropod and thyreophorans. The addition of tracks from ornithopod dinosaurs and skeletal evidence of crocodilians now give a broader picture of a diverse Middle Jurassic vertebrate fauna. This is an important addition to the understanding of the terres-trial Mesozoic ecosystem of Denmark, and a valuable addition to the scarce Middle Jurassic vertebrate record of Europe.

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Dinosaur Tracks from the Kilmaluag Formation (Bathonian, Middle Jurassic) of Score Bay, Isle of Skye, Scotland, UK

Ichnos ◽

10.1080/10420940590914516 ◽

2005 ◽

Vol 12 (2) ◽

pp. 93-104 ◽

Cited By ~ 18

Author(s):

Neil D. L. Clark ◽

Dugald A. Ross ◽

Paul Booth

Keyword(s):

Middle Jurassic ◽

Dinosaur Tracks ◽

Isle Of Skye

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Defining the Bemaraha megatracksite: an update on dinosaur ichnology in Madagascar

Geological Society London Special Publications ◽

10.1144/sp522-2021-86 ◽

2021 ◽

pp. SP522-2021-86

Author(s):

A. Wagensommer ◽

R. Dolch ◽

T. Ratolojanahary ◽

S. Donato ◽

S. D'Orazi Porchetti

Keyword(s):

Sea Level ◽

Southern Hemisphere ◽

Marine Environment ◽

Middle Jurassic ◽

Time Interval ◽

Short Scale ◽

Sauropod Tracks ◽

Dinosaur Tracks ◽

Theropod Tracks

AbstractThe Bemaraha Formation preserves a unique and abundant record of dinosaur footprints, the only occurrence of this type known from Madagascar. Theropod and sauropod tracks occur in Middle Jurassic strata and form an important record from this otherwise poorly documented time interval. Here we report on 18 new tracksites, raising the total number of known localities in the Bemaraha to 31. The majority of these sites occur at a same stratigraphic level that can be traced over an area of at least 30 km2, which makes it one of the most laterally extensive occurrences of dinosaur tracks on record in the southern hemisphere. Dinosaur tracks are restricted to a few bedding surfaces representing times of sea-level lowstand within a normally marine environment. Theropod tracks are by far more abundant than sauropod tracks and typically are oriented towards the palaeocoastline. This pattern is interpreted as evidence of a short-scale migration between feeding and resting grounds. The Bemaraha Formation thus allows a rare glimpse into dinosaur behaviour in a marginal marine environment of Jurassic age.

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