References
- 1876 . Steinkohlen-Calamarien.—Part I . Abhandl. zur geologischen Specialkarte von Preussen und den Thüringischen Staaten , ii Heft i“Steinkohlen-Calamarien.—Part II.,” Abhandl. &c. Band v. Heft ii. (1884).
- See also Dr. Williamson's papers on the structure of Calamites published at various dates in the Philosophical Transactions
- The fruit of Archæocalamites is the Pothocites Grantonii of Paterson. See Ann. & Mag. Nat. Hist. May 1883 297 297
- Goldenberg . 1855 . Flora Saræpontana fossils , : 9 – 9 . Heft i10See also Kidston, Ann. & Mag. Nat. Hist. Aug. 1884, p. 111
- Goldenberg . Flora Saræpontana fossils , 20 – 20 . Heft i.pl. iii. fig. 11.
- 1884 . Micro-Palæo-Phytologia Formationis Carboniferæ , i : 1 – 1 . (Vols. i. and ii. Erlangen, Bavaria, 1884. Many hundreds of these organisms are figured in this work.)
- For a full description of the structure of Cordaites, see Renault Cours de botanique fossile Paris 1881 première annéeGrand'Eury, “Flore carbonifère du Département de la Loire et du centre de la France” (1877); Zittel-Schnek, ‘Handbuch der Paläontologie,’ ii. Band, Lief. iii. p. 241 (1884).
- Since writing the above a new type of Cordaites has been described by Renault and Zeiller, which they have named Scutocordaites Comptes Rendus March 1885 23
- Brongniart . 1881 . Recherches sur les graines fossiles silicifiées Paris Also, “Etudes sur les graines fossiles trouvées à l'état silicifié dans le terrain houiller de Saint Etienne,” Annales des Sciences Nat. botan. 5e sér. vol. xx. pls. xxi.–xxiii.