Naslov
Cenomanian dinosaur tracks on Fenoliga islet in south Istria, Croatia

Autori
Mezga, Aleksandar ; Bajraktarević, Zlatan

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
1st symposium on european dinosaurs, Programme and Abstracts / Sachs, Sven ; Windolf, Raymund - Düsseldorf, 2000

Skup
First Symposium on European Dinosaurs

Mjesto i datum
Düsseldorf, Njemačka, 14.03.2000. - 18.03.2000

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Cenomanian; dinosaurs; trackways; Croatia

Sažetak
On the islet of Fenoliga (Istria, Croatia), on a surface of 743 m2, 146 dinosaur footprints were found (Mezga, 1998). They are arranged in six trackways and six footprint groups (the term footprint group is applied to assemblages of footprints created by one or more individuals but direction of movement is not determinable). They occur in Middle to Upper Cenomanian bioclastic wackestone deposited in a tidal flat environment. Two basic footprint types can be distinguished: 1.- large circular-elliptical sauropod footprints, forming four trackway and five footprint groups ; 2.- smaller, tridactyl theropod footprints forming two trackways and one footprint group. Three type specimens, one sauropod ichnotaxon and two theropod ichnotaxons, were designated during the course of the work (Mezga & Bajraktarevic, 1999). Footprints from this site constitute a sauropod-theropod ichnocoenosis (Lockley, 1991) with a ratio 67:33 % in favour of the sauropods. Footprints of three theropod and at least six sauropod individuals are present. Since no dinosaur bones have been discovered in Cenomanian rocks of Istria so far (Dalla Vecchia, 1998), these findings are important for the analysis of the regional dinosaur fauna. The footprints indicate the existence of extensive Cenomanian terrestrial habitats. Favourable paleoecological conditions during this period facilitated survival of the large sauropod and theropod populations (Mezga, 1998).

Izvorni jezik
Engleski

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