[105] The British Museum collection contains many good examples of the Solenhofen plants.
[106] There is a splendid silicified tree stem from Tasmania of Tertiary age several feet in height in the National Museum.
[107] Darwin (90) p. 317.
[108] Holmes (80) p. 126, fig. 1.
[109] Marsh (71).
[110] Conwentz (78).
[111] A large piece from one of these South African trees is in the Fossil-plant Gallery of the British Museum.
[112] Barton (1751) p. 58.
[113] Gardner (84) p. 314.
[114] Stokes (40) p. 207.