Papers by Zlatan Bajraktarevic
Geologia Croatica, Dec 30, 1997
Planktonic foraminiferal biostratigraphy and paleoecology of the Middle to Upper Eocene succession in the North Adriatic Sea
Razdoblja Zemljine prošlosti
Evolution of some morphological features in Pliocene viviparids
Prethodna geoekološka karakterizacija preferentnih lokacija za odlagalište nisko i srednje radioaktivnog otpada u Republici Hrvatskoj - Moslavačka gora
Cretaceous dinosaur and turtle tracks on the island of Veli Brijun (Istria, Croatia)
Geologica Carpathica, 2004
The dinosaur footprints have been discovered on the island of Veli Brijun, Croatia at one Late Ba... more The dinosaur footprints have been discovered on the island of Veli Brijun, Croatia at one Late Barremian site (Pogledalo) and three Late Albian sites (Ploce, Kamik/Pljesivac, Trstike/Debela Glava). The Late Barremian ichnocoenosis contains tracks of large theropods in intertidal sediment. The footprints assigned to the large 'carnosaur'-type theropods predominate over a rare gracile form. Footprints of small to medium sized theropods, medium sized ornithopods and small ornithopods are present in Late Albian ichnocoenosis as well as possible chelonian footprints. They were formed in a lagoonal environment that was occasionally sub aerially exposed. The parallel trackways could indicate the gregarious behaviour among the small ornithopods. Footprints of an iguanodontid ornithopod represent the only such findings in the Istria. The speeds of individuals at all four localities indicate normal walk. A total of 145 dinosaur footprints and 75 possible chelonian prints have been mapped ; 111 prints are arranged in 14 trackways.
The Karpatian in Croatia
In the area of northern Croatia there are two basins with different depositional processes during... more In the area of northern Croatia there are two basins with different depositional processes during the Neogene: the Hrvatsko Zagorje Basin and much larger North Croatian Basin.
Geologia Croatica, 2005
Miocene sediments rimming the Palaeozoic-Mesozoic-Palaeogene rocks, form Žumberak Mt. and the Sam... more Miocene sediments rimming the Palaeozoic-Mesozoic-Palaeogene rocks, form Žumberak Mt. and the Samoborsko Gorje Mts. Spatial analysis of the setting and development of the surface Miocene stratigraphy, at the marginal areas of the Žumberak and Samoborsko Gorje Mts., allows four palaeogeographic areas to be distinguished: Žumberak, Plešivica-Sveta Jana, Samobor-Sveta Nedelja and Grdanjci. In the Miocene deposits (totaling 350 m), within the area of Žumberak, coarse-grained clastics from deltaic deposits of Pannonian age prevail. Here only, 50 m of sediments of Pliocene-Pleistocene age overlie the Miocene deposits whereas Mesozoic carbonates represent the basement. The Plešivica-Sveta Jana area is characterized by a 600 m sequence of Miocene deposits, mainly overlying Triassic dolomites, where finely-grained layers of marls and silts prevail. In this area, Miocene successions from the Badenian to the Pontian are characterized by a continuity of sedimentation with an inherited depositional environment. In the area of Samobor-Sveta Nedelja, the basement is diverse: Triassic dolomites, volcanogenic-sedimentary complex of Cretaceous age and a clastic-carbonate complex of Palaeogene age. The Miocene succession shows a regressive trend from the Badenian to the Pontian and the total thickness is estimated at 400 m. The area of Grdanjci differs considerably from the other Miocene palaeorelief. An approximately 50 m-thick series of coarsegrained clastics with coal is distinguished, of unclear stratigraphic age (Ottnangian?). Miocene sediments of the Grdanjci area are represented by both a transgressive type of conglomerates and shallow water limestones of Badenian age, with a total thickness of about 100 m.
Geologia Croatica
Miocene sediments rimming the Palaeozoic–Mesozoic–Palaeogenerocks, form Žumberak Mt. and the Samo... more Miocene sediments rimming the Palaeozoic–Mesozoic–Palaeogenerocks, form Žumberak Mt. and the Samoborsko Gorje Mts. Spatialanalysis of the setting and development of the surface Miocenestratigraphy, at the marginal areas of the Žumberak and SamoborskoGorje Mts., allows four palaeogeographic areas to be distinguished:Žumberak, Plešivica–Sveta Jana, Samobor–Sveta Nedelja and Grdanjci.In the Miocene deposits (totaling 350 m), within the area ofŽumberak, coarse-grained clastics from deltaic deposits of Pannonianage prevail. Here only, 50 m of sediments of Pliocene–Pleistoceneage overlie the Miocene deposits whereas Mesozoic carbonates representthe basement. The Plešivica–Sveta Jana area is characterizedby a 600 m sequence of Miocene deposits, mainly overlying Triassicdolomites, where finely-grained layers of marls and silts prevail.In this area, Miocene successions from the Badenian to the Pontianare characterized by a continuity of sedimentation with an inheriteddepositional environment...
Makrofauna badena i sarmata u području Svete Nedelje i Samobora
Međunarodni znanstveni skup - 100-ta obljetnica rođenja akademkinje Vande Kochansky-Devidé. Knjiga sažetaka, 2015
Anatomical characteristic of fossil (Bos/Bison) and recent (Bos taurus primigenius) bovines atlas
During gravel exploatation from the river Sava near Županja (Croatia) an isolated bovine atlas wa... more During gravel exploatation from the river Sava near Županja (Croatia) an isolated bovine atlas was found. After palaeontological study (morphometric characteristic, brown colour, strong petrification) it was determined to pertain to the Upper pleistocene bovines (Bos seu Bison). Detailed anatomical and metrical comparison was made between the fossil atlas from Županja and the atlas of the recent Istrian cattle (Bos taurus primigenius), which is the representative of the most primitive primogenetic bovine form, osteologically completely akin to the original fossil species Bos primigenius. Using the literatured data both atlases were metrically correlated with the atlases of the following fossil and recent species: Bison priscus, Bison bonasus, Bos primigenius and Bos taurus. It was not possible to determine the fossil atlas generically, while the recent one is well defined. All analysis indicated that problems concerning the identification of isolated atlases, which were hitherto stu...
On the footsteps of dinosaurs
Strucna ekskurzija po nalazistima dinosaura u Istri u organizaciji Paleontoloskog odsjeka Hrvatsk... more Strucna ekskurzija po nalazistima dinosaura u Istri u organizaciji Paleontoloskog odsjeka Hrvatskog geoloskog drustva.
Dinosaur tracks as an evidence for the terrestriality in the Late Jurassic sediments of Istria, Croatia
All fossil remains of dinosaurs on the Adriatic carbonate platform (which is now outcropping alon... more All fossil remains of dinosaurs on the Adriatic carbonate platform (which is now outcropping along the eastern coast of the Adriatic Sea) came from the Cretaceous sediments ; the oldest find being of Hauterivian age (Dalla Vecchia et al. 2000). Recently, a new locality with the dinosaur footprints have been discovered. The site is situated in an active quarry front near the village Kirmenjak in the central Istria.. The age of the trackbearing sediment is Upper Tithonian and represents, so far, the oldest proof of dinosaur presence on the Adriatic carbonate platform. The site consists of the peritidal limestones which represent the lithostratigraphic unit "Kirmenjak stylolitised micrites" (Velic & Tisljar 1988). This unit represents the first part of the second transgressive-regressive megasequence of Jurassic - Cretaceous shallow-water carbonates of Western Istria (Velic et al. 1995a) and is composed of typical shallowing-upward cycles, ranging from black-pebble breccias a...
The Dino-150 Million
U clanku su opisani nalazi otisaka stopala dinosaura u Hrvatskoj na popularan nacin, kako bi bili... more U clanku su opisani nalazi otisaka stopala dinosaura u Hrvatskoj na popularan nacin, kako bi bili zanimljiviji siroj publici, a u cilju promicanja 'znanstvenog turizma'.
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 shal... more 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 m...
Promjene okoliša u donjem dijelu doline rijeke Mirne (Istra) tijekom holocena
Geologia Croatica, Dec 30, 1997
Geologia Croatica, 2015
Sixteen dinosaur footprints are exposed along the upper-bedding surface of a single Lower Hauteri... more Sixteen dinosaur footprints are exposed along the upper-bedding surface of a single Lower Hauterivian limestone layer in Palud cove (western Istria, Croatia). This footprint-bearing horizon is part of the thick Mesozoic stratigraphic succession of the Adriatic-Dinaridic Carbonate Platform. The Palud site section is characterized by peritidal (shallow subtidal to intertidal) limestone with several shallowing-upward cycles composed of mudstone, peloidal wackestone/packstone, peloidal packstone/grainstone and fenestral mudstone/wackestone with common geopetal infill. The Early Hauterivian age of these deposits is based on their microfossil content, which is dominated by ostracods, benthic foraminifera and calcareous green algae (Dasycladales). The footprints are circular to elliptical in shape, with no distinct digit impressions (with one possible exception), and with average length of 26 cm. Most footprints have a well-defined expulsion rim produced by the compression and displacement of the waterlogged substrate caused by the feet of the dinosaurs. All of the footprints are nearly the same shape and size, which indicates that they were produced by the same kind of trackmaker-likely a sauropod dinosaur. These animals left their footprints on the top of an intertidal and shallowing-upward succession during ephemeral subaerial exposure of the fine-grained carbonate sediment.
Uploads
Papers by Zlatan Bajraktarevic