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Dinosaur tracks as an indicator of peritidal environment: an example from Late Hauterivian of Palud bay, Croatia (CROSBI ID 529481)

Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija

Mezga, Aleksandar ; Cvetko Tešović, Blanka ; Bajraktarević, Zlatan Dinosaur tracks as an indicator of peritidal environment: an example from Late Hauterivian of Palud bay, Croatia // 25th IAS Meeting of Sedimentology, Abstracts Book / Zelilidis, Avram (ur.). Patras, 2007. str. 276-x

Podaci o odgovornosti

Mezga, Aleksandar ; Cvetko Tešović, Blanka ; Bajraktarević, Zlatan

engleski

Dinosaur tracks as an indicator of peritidal environment: an example from Late Hauterivian of Palud bay, Croatia

The Lower Cretaceous carbonate succession of Palud bay (Istria, Croatia) is characterized by shallow-water limestones deposited in peritidal environments (shallow subtidal to intertidal) with several shallowing– upward cycles. Those cycles are composed of mudstones, peloidal wackestones/packstones, peloidal packstones/grainstones and fenestral mudstones to wackestones with geopetal infill. The microfossil assemblage, found within limestones and dominated by ostracods associated with foraminifera and green algae (dasycladales), probably indicates the Late Hauterivian age. A dozen of large circular-elliptical dinosaur footprints with indistinct morphology have been found on the outcrop. They are situated on the upper– bedding plane of a single layer. The clearly pronounced expulsion rims around the tracks represents compressed waterlogged sediment squeezed from the print by the weight of the dinosaur. Such high rims indicate the greater softness of the substrate on which the animals moved. All of the footprints are of nearly same shape and size what indicate their belongings to the same animal. The footprints are circular to elliptical in shape with no clearly visible digit impressions and with average length of 30 cm. The sediment which forms the trackbearing layer is fenestral mudstone with numerous geopetal infills. The footprints, together with the sedimentological features, prove short exposure of the layer to meteoric conditions and indicate intertidal environments.

dinosaur tracks; palaeoenvironment; Palud bay; Croatia

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Podaci o prilogu

276-x.

2007.

objavljeno

Podaci o matičnoj publikaciji

25th IAS Meeting of Sedimentology, Abstracts Book

Zelilidis, Avram

Patras:

Podaci o skupu

25th IAS Meeting of Sedimentology

poster

04.09.2007-07.09.2007

Patras, Grčka

Povezanost rada

Geologija