Tagasi otsingusse
Chen, Z. et al., 2018

Late Ediacaran trackways produced by bilaterian animals with paired appendages

Chen, Z., Chen, X., Zhou, C., Yuan, X., Xiao, S.
DOI10.1126/sciadv.aao6691
Aasta2018
KirjastusAmerican Association for the Advancement of Science (AAAS)
AjakiriScience Advances
Köide4
Number6
Leheküljedeaao6691
Tüüpartikkel ajakirjas
Id10702

Abstrakt

Ediacaran trace fossils provide key paleontological evidence for the evolution of early animals and their behaviors. Thus far, however, this fossil record has been limited to simple surface trails and relatively shallow burrows. We report possible trackways, preserved in association with burrows, from the terminal Ediacaran Shibantan Member (ca. 551 to ca. 541 million years ago) in the Yangtze Gorges area of South China. These trace fossils represent the earliest known trackways. They consist of two rows of imprints arranged in poorly organized series or repeated groups. These trackways may have been produced by bilaterian animals with paired appendages, although the phylum-level phylogenetic affinity of the trace makers remains unknown. It is possible that the trackways and associated burrows were produced by the same trace maker, indicating a complex behavior involving both walking and burrowing. Together, these trackways and burrows mark the arrival of a new era characterized by an increasing geobiological footprint of bilaterian animals.

Viimati muudetud: 9/16/2021
KIKNATARCSARVTÜ Loodusmuuseumi geokogudEesti Loodusmuuseumi geoloogia osakond
Leheküljel leiduvad materjalid on enamasti kasutamiseks CC BY-SA litsensi alusel, kui pole teisiti määratud.
Portaal on osaks teadustaristust ning infosüsteemist SARV, majutab TalTech.
Open Book ikooni autor Icons8.