Extended Data Fig. 7: Additional views of the algae shown in Fig. 2.
From: The Cabrières Biota (France) provides insights into Ordovician polar ecosystems
(a) Optical photograph of the thick branching algae UCBL-FSL713606 shown in Fig. 2d. (b) Close-up view under polarised light of basal branches, from the box in (a). (c) Optical photograph under polarised light of the thin branching algae UCBL-FSL713607 shown in Fig. 2e. (d) Close-up view under polarised light from the box in (c) highlighting textural differences between algae (right) and sponges (left). (e) Optical photograph under low angle and polarised light of the more complex algae UCBL-FSL713608 shown in Fig. 2f. (f) Close-up view under polarised light from the box in (e) highlighting branched clumps of flat kidney-shaped segments. Scale bars represent 5 cm in (a), (b), (c) and (f), 1 mm in (d), and 1 cm in (e).
