Claim: Veronica Burns led 19 field trips over a 27-year period and she was an enthusiastic collector of fossils, especially of graptolites (subclass of the class Pterobranchia)  from the Irish coast.
Evidence: She led 19 field trips over a 27-year period. She was an enthusiastic collector of fossils, especially of graptolites from the Irish coast. Graptolithina is a subclass of the class Pterobranchia, the members of which are known as graptolites.