PT - JOURNAL ARTICLE AU - Piotr Szrek AU - Patrycja G. Dworczak AU - Olga Wilk TI - Bioerosion traces and borings in the Upper Devonian vertebrate remains from the Holy Cross Mountains, Poland Bioerosion in fish remains AID - 10.1101/2021.07.23.453559 DP - 2021 Jan 01 TA - bioRxiv PG - 2021.07.23.453559 4099 - http://biorxiv.org/content/early/2021/07/23/2021.07.23.453559.short 4100 - http://biorxiv.org/content/early/2021/07/23/2021.07.23.453559.full AB - Among the hundreds of collected Devonian vertebrate macrofossils in the Holy Cross Mountains, placoderms dominate and provide data on their morphology, distribution and taphonomy. So far 17 out of more than 500 studied specimens have revealed bones with surfaces covered by sediment-filled trace fossils. The traces have been made on the vertebrate remains before their final burial. The borings, oval in cross-section, include dendroidal networks of shallow tunnels or short, straight or curved individual scratches and grooves, which frequently create groups on the both sides of the bones. ?Karethraichnus isp. from Kowala and ?Osteocallis isp. from Wietrznia are the oldest record of these ichnogenera. Sedimentological clues indicate a shallow water environment, probably from the slope below the storm wave base.Competing Interest StatementThe authors have declared no competing interest.