Figure 5.1-5.17. 1-2. Ammobaculinus recurvus Saidova. Specimen with double aperture. 1. apertural view. 2. side view. Slurp gun sample SLRP4775, <1 mm. 3-4. Ammobaculinus recurvus. Specimen with single aperture. 3. side view. 4. apertural view. Shipek grab TUL99A017, >1 mm. 5. Ammobaculinus recurvus. Small specimen that has not reached the uncoiling stage. Note aperture in the form of a crescent pointing outwards, in conformity with Saidova's type description. Slurp gun sample SLRP4775, sponge fraction. 6. Probable Ammobaculinus recurvus, trapped and impaled in the meshwork. Aperture not obvious, probably along the sponge spicule. Slurp gun sample SLRP4775, sponge fraction. 7. Crithionina sp., attached on meshwork. Slurp gun sample SLRP4772, >1 mm. 8. Crithionina sp., attached and impaled in meshwork. Slurp gun sample SLRP4775, >1 mm. 9. Crithionina sp., attached and impaled on meshwork. Small spicules at lower right are rossellid sponges, probably posterior to the death of the supporting sponge. Shipek grab TUL99A015, sponge fraction. 10-12. Dorothia cf. bradyana Cushman in Todd and Low (1967). Loose and undeformed specimen. 10. apertural view. 11. side view. 12. basal view. Slurp gun sample SLRP4775, <1 mm. 13. Dorothia cf. bradyana. Apertural view; the straight feature pointing at ca. 2 o'clock is not a cameral suture but a scar left by the presence of the sponge meshwork to which the specimen was attached. Slurp gun sample SLRP4771 <1 mm. 14-15. Dorothia cf. bradyana. Oblique view of specimen attached to the meshwork by the apertural end. 14. side view. 15. apertural view, partly obscured by dirt. Slurp gun sample SLRP4771, sponge fraction. 16-17. Dorothia cf. bradyana. Specimen trapped and impaled within the meshwork, extreme entanglement. 16. apertural face, with trace of broken-off spicules. 17. general view. Slurp gun sample SLRP4771, <1 mm.