Ammobaculites sp. 1

Benedetti, A, 2017, Eocene / Oligocene deep-water agglutinated foraminifers (DWAF) assemblages from the Madonie Mountains (Sicily, Southern Italy), Palaeontologia Electronica 20 (1), pp. 1-66 : 41

Ammobaculites sp. 1

Figure 19.12

Material. One incomplete specimen from the sample PC060607.

Description. Seven chambers visible in the last whorl of the planispiral coiled stage, separated by indistinct sutures. Umbilical region strongly depressed. The unique complete chamber of the uniseriate stage is very short and larger compared to previous chambers. Wall thick, coarsely agglutinated.

Remarks. Differs from A. agglutinans ( d’Orbigny, 1846) in having more chambers in the planispiral portion increasing faster in size.

Figures

FIGURE 19. Scanning electron micrographs of Haplophragmoididae (1-6), Sphaeramminidae (7-10), Lituolidae (11- 14), and Recurvoidea (15-25) from the Caltavuturo Formation cropping out at Portella Colla. 1-2, Haplophragmoides cf. latissimusuturalis Smith, 1971, PC3. 3, Haplophragmoides sp. 3, PC060615. 4, Haplophragmoides sp. 4, PC060601. 5, Haplophragmoides sp. 5, PC060615. 6, Haplophragmoides sp. 6, PC060621. 7-8, Praesphaerammina subgaleata (Vašiček, 1947), PC11 (7) and PC1 (8). 9-10, Ammosphaeroidina pseudopauciloculata (Mjatliuk, 1966), PC060604 (9) and PC060604 (10). 11, Ammobaculites agglutinans (d’Orbigny, 1846), PC060615. 12, Ammobaculites sp. 1, PC060607. 13, Ammobaculites sp. 3, PC15. 14, Ammobaculites sp. 2, PC060625. 15-16, Budashevaella multicamerata (Voloshinova and Budasheva, 1961), PC060604. 17, Cribrostomoides subglobosus (Cushman, 1910), PC060604. 18, Recurvoidella lamella (Grzybowski, 1898), PC060601. 19, Recurvoides anormis Mjatliuk, 1970, PC5. 20, Recurvoides sp. 1, PC060601. 21, Recurvoides sp. 2, PC060623. 22, Recurvoides nucleolus (Grzybowski, 1898), MM3. 23, Recurvoides walteri (Grzybowski, 1898), PC5. 24, Trochammina bifaciata Friedberg, 1901, PC060604. 25, Thalmannammina subturbinata (Grzybowski, 1898), MM14. Scale bar equals 0.5 mm.