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:
ClevicerasExaratumType. en Cleviceras exaratum type specimen Biodiversity Heritage Library Buckman SS Yorkshire type ammonites Sydney Savory Buckman Arthur Morley Davies Tutcher Image is from publication in Public Domain as stated there doi org title Image from the Biodiversity Heritage Library Digitized by Gerstein University