Grantia compressa. Site: The Gobbins, Island Magee
 Grantia compressa. Event number: 19830628/05. Site: The Gobbins, Island Magee. 1983-06-28. Photograph © David Connor. (4/7) 
 David Connor (2026). Photograph of Grantia compressa. Site: The Gobbins, Island Magee. [In] Marine Biodiversity Data Portal - NI.
https://habitas.org/mbdp/sitephoto.php?item=niss_2453.jpg. Accessed on 2026-11-04