?url_ver=Z39.88-2004&rft_id=10.30486%2Fgcr.2021.1912240.1044&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Mayoral&rft.au=Mayoral%2C+E.&rft.aufirst=E.&rft.issue=1&rft.volume=4&rft.issn=26454661&rft.atitle=Early+Cambrian+(Marianian)+Trilobites+and+Associated+Faunas+from+the+Sierra+Norte+de+Sevilla+Geopark%3AAScientific+andHeritageApproach&rft.pages=56-60&rft.title=Geoconservation+Research&rft.date=2021&rft.genre=article