Figure 7. Typical Trilobatus immaturus and intergradation with Trilobatus quadrilobatus. A–K in Systematic taxonomy of the Trilobatus sacculifer plexus and descendant Globigerinoidesella fistulosa (planktonic foraminifera)

• Main Authors: Poole, Christopher R., Wade, Bridget S.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2019
• Subjects: Biodiversity; Taxonomy; Chromista; Foraminifera; Globothalamea; Rotaliida; Globigerinidae; Trilobatus; Planktonic foraminifera
• Online Access: https://doi.org/10.5281/zenodo.10932439

Figure 7. Typical Trilobatus immaturus and intergradation with Trilobatus quadrilobatus. A–K, Trilobatus immaturus (LeRoy, 1939); L–N, Trilobatus quadrilobatus (d'Orbigny, 1846). A–C, I–K, ODP Site 926, Ceara Rise, western tropical Atlantic, 11H/04/ 50–52 cm (A, B, umbilical view; C, detail wall texture and infilled pores; I, spiral view; J, detail of final chamber wall texture; compare with K, detail of penultimate chamber where primary wall texture is obscured by thick gametogenic calcite); D–H, GLOW-3, south-west Indian Ocean (D, detail of wall texture and imperforate lip on first supplementary aperture; E, H, umbilical view; F, G, spiral view). L–N, GLOW-3, south-west Indian Ocean (L, spiral view; M, umbilical view; N, detail of wall texture including clear spine holes). Scale bars = 100 Lm, except for close-up images C, D, J, K, N, where scale bars = 20 Lm. Published as part of Poole, Christopher R. & Wade, Bridget S., 2019, Systematic taxonomy of the Trilobatus sacculifer plexus and descendant Globigerinoidesella fistulosa (planktonic foraminifera), pp. 1989-2030 in Journal of Systematic Palaeontology 17 (23) on page 1999, DOI:10.1080/14772019.2019.1578831, http://zenodo.org/record/10883327