FIGURE 9 in Fossil clitellate annelid cocoons and their microbiological inclusions from the Eocene of Seymour Island, Antarctica ...

• Main Authors: McLoughlin, Stephen, Bomfleur, Benjamin, Mörs, Thomas, Reguero, Marcelo
• Format: Still Image
• Language: unknown
• Published: Zenodo 2016
• Subjects: Biodiversity; Taxonomy; Animalia; Pegmatothylakos; Antarc*; Antarctica; Seymour Island
• Online Access: https://dx.doi.org/10.5281/zenodo.13331751; https://zenodo.org/doi/10.5281/zenodo.13331751

FIGURE 9. Spermatozoa and bacteria preserved embedded in the innermost layer of the alytine wall of Burejospermum seymourense sp. nov., NRMS089729 (1–12); Burejospermum punctatum sp. nov., NRMS089728 (13); and Pegmatothylakos manumii sp. nov., NRMS089730 (14). 1, Overview of cocoon inner surface showing a range of elongate spermatozoa and elliptical–reniform bacteria. 2, Spermatozoon acrosome (white arrow) with swollen tip (probably containing the acrosome vesicle) and apical button (black arrow). 3, Enlargement of a spirally organized detached acrosome. 4, Thin sheet-like innermost layer of alytine draped over mineral inclusion (top) and entombing numerous elliptical bacteria. 5, Several spermatozoal nuclear regions, one with an attached whip-like flagellum (white arrow). A pair of dimpled elliptical bacteria are also present in the upper left (black arrow). 6, Enlargement of a portion of a spermatozoon flagellum showing slightly beaded structure. 7, Enlargement of the nuclear and mitochondrial region of a ... : Published as part of McLoughlin, Stephen, Bomfleur, Benjamin, Mörs, Thomas & Reguero, Marcelo, 2016, Fossil clitellate annelid cocoons and their microbiological inclusions from the Eocene of Seymour Island, Antarctica, pp. 1-27 in Palaeontologia Electronica 11 (1) on page 16, DOI: 10.26879/607, http://zenodo.org/record/13331733 ...