Osspecus eunicefooteae Jamison-Todd, Witts, Jones, Tangunan, Chandler, Bown et Twitchett, 2025

Emended diagnosis of Osspecus eunicefooteae In addition to the previously identified and described features of this ichnospecies, such as long, undulating branches emanating radially from a central hemispherical chamber that sits near the bone surface [12,13], the new examples presented here sometimes have distinctly long, straight, streamerlike branches emanating from the central chamber down into the bone.

Diagnosis. Boring with chamber diameters of 1.8–2.7mm and total depths of 1.2–1.9mm. Apertures are wide relative to other boring types. Borings are shallow, the main chamber sitting just below the surface of the bone, with a short aperture neck. The centre of radial symmetry sits at the top of the chamber. Branches are wavy, thin, and long relative to the chamber, though they can be of irregular length. Overall chamber shape is approximately hemispherical, with an arc length generally close to 180 degrees.