Fig. 3 in Evidence of external gametophores in puzzling Late Triassic-Early Jurassic dasycladalean green algae

Fig. 3. Possible structural models in dasycladalean alga Chinianella ellenbergeri (Lebouché and Lemoine in Granier and Deloffre, 1994). A. Alternated whorls of weak/sterile and strong/fertile laterals; sterile and fertile laterals ramified (A1); only sterile laterals ramified (A2). B. Spaced whorls of weak/sterile laterals bearing a laterally attached gametophore (goniospory); large gametophore attached proximally (B1); subterminal gametophore (B2). C. Spaced whorls of weak/sterile laterals with simple interverticillar voids.