This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Bernissart Iguanodon sinkhole Detail map vdBroeck fig . nl Detailkaart van het Iguanodonzinkgat in Bernissart door Ernest van den Broeck en Detail map of the Iguanodon sink hole in Bernissart by Ernest van den Broeck fr Plan detaill du cran aux iguanodons Bernissart par Ernest van den Broeck Bulletin de la Socit Belge de Gologie