WFRF:(Niedzwiedzki Grzegorz 1980 )
Sökning: WFRF:(Niedzwiedzki Grzegorz 1980 ) > A dinosaur track as...
- Niedzwiedzki, Grzegorz,1980-Uppsala universitet,Evolution och utvecklingsbiologi (författare)
A dinosaur track assemblage from the Upper Hettangian (Lower Jurassic) marginal-marine deposits of Zapniów, Holy Cross Mountains, Poland.
- Artikel/kapitelEngelska2016
Förlag, utgivningsår, omfång ...
- Polish Geological Institute,2016
- printrdacarrier
Nummerbeteckningar
- LIBRIS-ID:oai:DiVA.org:uu-311970
- https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-311970URI
Kompletterande språkuppgifter
- Språk:engelska
- Sammanfattning på:engelska
Ingår i deldatabas
- SwePubSwePub
Klassifikation
Anmärkningar
- Upper Hettangian (Lower Jurassic) marginal-marine Przysucha Ore-bearing Formation exposed at Zapniów mine and clay-pit (northwestern part of the Holy Cross Mountains area, central Poland) revealed an interesting assemblage of dinosaur tracks. Although mostly yielding poorly preserved and isolated tracks probably left in shallow water conditions, the site never the less indicates a diversity of early saurischian (theropods and sauropodomorphs) and ornithischian (thyreophorans) dinosaur trackmakers. This new assemblage is partly consistent with the Lower-Middle Hettangian ichnorecord from the same region. The tracks are preserved in sediments of a barrier-foreshore origin within a barrier/lagoonal depositional system, belonging to the highstand systems tract, located below a marked erosional surface (sequence boundary), which is associated with a substantial fall in sea level at the end of Hettangian times. Here we de scribed all previously and newly collected or observed in the field dinosaur tracks from both surface and underground exposures at Zapniów. Fourichnospecies: Grallator isp., Anchisauripus isp., cf. Tetrasauropus isp., and cf. Anomoepus isp. were identified. The theropod and ornithischian tracks show distinct similarities to those described from the richest in this region and most famous Gliniany Las dino saur track assemblage, in age approximately coeval to Zapniów. Two sizes of theropod tracks (small and medium) indicate the presence of two different size classes or species of predators in this area. The described cf.Tetrasauropus isp. from Zapniów is the first unquestioned evidence of basal sauropodomorphs in the Upper Hettangian ofthe Holy Cross Moun tains and first record of this ichnotaxa in the Lower Jurassic of Poland. Additionally, two theropod trackways (Anchisauripus isp.) show evidence for trotting. The new finds suggest similarities be tween marginal-marine environments (delta-plain and fore shore-barrier/lagoon lithofacies) association of dinosaurs containing low-browsing thyreophorans accompanied by small or juvenile sauropodomorphs and small to medium sized theropods. Presence of the ornithischian footprints suggests their prominent role as a major component in Middle-Upper Hettangian dinosaur faunas in marginal-marine environments dominating in the region.
Ämnesord och genrebeteckningar
- NATURVETENSKAP Geovetenskap och miljövetenskap Geologi hsv//swe
- NATURAL SCIENCES Earth and Related Environmental Sciences Geology hsv//eng
- dinosaur tracks
- Przysucha Ore-bearing Formation
- Upper Hettangian
- Lower Jurassic
- Holy Cross Mountains
- Poland.
- Earth Science with specialization in Historical Geology and Palaeontology
- Geovetenskap med inriktning mot historisk geologi och paleontologi
Biuppslag (personer, institutioner, konferenser, titlar ...)
- Pienkowski, GrzegorzPolish Geological Institute (författare)
- Uppsala universitetEvolution och utvecklingsbiologi (creator_code:org_t)
Sammanhörande titlar
- Ingår i:Geological QuarterlyPolish Geological Institute60:4, s. 840-8561641-72912082-5099
Internetlänk
Hitta mer i SwePub
- Av författaren/redakt...
- Niedzwiedzki, Gr ...
- Pienkowski, Grze ...
- Om ämnet
-
- NATURVETENSKAP
- NATURVETENSKAP
- och Geovetenskap och ...
- och Geologi
- Artiklar i publikationen
- Geological Quart ...
- Av lärosätet
- Uppsala universitet
Sök utanför SwePub
- Sök vidare i:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - Nationella bibliotekssystem
- LIBRIS.kb.se
