Palaeoxyris sp. from Crock Hey. Westfalian A.
Supposed egg case of a shark. With spirals.
Coll. and photo: Andy Tenny

Vetacapsula sp. from Crock Hey. Westfalian A.
Supposed egg capsule of a shark. No spirals.
Coll. and photo: Hans Steur. Height of the photo 3 cm.