[665] Lindley and Hutton (31), Pl. CXXIV.
[666] Binney (68), Pl. VI. fig. 3.
[667] Stur (87), Pl. XVI b, and Pls. IV b and XIII.
[668] Scheuchzer (1723), p. 63, Pl. XIII. fig. 3.
[669] Potonié (93), p. 166.
[670] Vide pp. 351 et seq.
[671] Renault (96), p. 66; (93), Pl. XXVIII.
[672] One of the finest specimens of Annularia stellata is figured by Stur (87), Pl. XVI b; it is in the Leipzig Museum. Vide also Schenk (83), Pl. XXXIX.; Germar (44), Pl. IX.; Renault and Zeiller (88), Pls. XLV. and XLVI. There are some well-preserved impressions of A. stellata in the British Museum from Radstock, Newcastle and elsewhere.
[673] Zenker (33), Pl. V. pp. 6–9.
[674] Heer (65), fig. 6, p. 9, and other authors.