Hand-published in a printing of eighty copies in 1985, the writer Clara Janés’ (1940–) small book Fósiles, illustrated by artist Rosa Biadiu (1944–), united twenty-five poems about the shells and fossils Janés picked up by the handful over several years at Madrid’s El Rastro market on Sunday mornings. Not only does the volume’s artisanal production and introduction by Rosa Chacel offer new insight into female writers’ networks and infrastructures during and after the Spanish transition to democracy, but the work also stands as a key early example of feminist environmental thought in contemporary Spain. Actively proclaiming their presence as archaeological and natural vestiges, Janes’ poetic ‘fossils’ represent an archive, an intimate presence and an act of feminist materiality in the Anthropocene.