Thyrsopteris — Thyrsopteris dentata Fontaine. 
537 
transiens Goth., Protopiceoxylon exstinctum Goth., Piceoxylon antiquius 
Goth. — W. Goth an (13), p. 34—36, Taf. VI, Fig. 2—8. 
Thyrsopteris — Vergleich mit Onychiopsis; die von Fontaine beschriebenen 
Arten — E. W. Berry (31), p. 321—325 — E. W. Berry (35), p. 267—272. 
Thyrsopteris alata Fontaine, Monogr. U. S. Geol. Surv., Vol. XV, 1890, p. 124, 
Taf. XXXVI, Fig. 3 — zu Onychiopsis Göpperti (Schenk) Berry — E. W. 
Berry (31), p. 325 — E. W. Berry (35), p. 281. 
Thyrsopteris angustifolia Fontaine, Monogr. U. S. Geol. Surv., Vol. XV, 1890, p. 131, 
Taf. XLIV, Fig. 4, XLV, Fig. 3, XLVIII, Fig. 2, XLIX, Fig. 3, 4, LV, 
Fig. 2, LVI1I, Fig. 8; Fontaine, in Ward, Monogr. U. S. Geol. Surv., 
Vol. XLVIII, 1906, p. 516 — zu Onychiopsis psilotoides (S. et W.) Ward 
— E. W. Berry (31), p. 330 — E. W. Berry (35), p. 275, 276. 
Thyrsopteris angustiloba Fontaine, Monogr. U. S. Geol. Surv., Vol. XV, 1890, 
p. 134, Taf. XLVIII, Fig. 3—5, LV, Fig. 3 — zu Onychiopsis Göpperti 
(Schenk) Berry — E. W. Berry (31), p. 325 — E. W. Berry (35), p. 281. 
Thyrsopteris bella Fontaine, Monogr. U. S. Geol. Surv., Vol. XV, 1890, p. 139, 
Taf. LIII, Fig. 5, LV, Fig. 6, 7, LVI, Fig. 2, 5, LVII, Fig. 1, 5, LVIII, 
Fig. 4; Fontaine, in Ward, Monogr. U. S. Geol. Surv., Vol, XLVIII, 1906, 
p. 491, 511 — zu Onychiopsis Göpperti (Schenk) Berry — E. W. Berry (31), 
p. 326 — E. W. Berry (35), p. 282. 
Thyrsopteris brevifolia Fontaine, Monogr. U. S. Geol. Surv., Vol. XV, 1890, 
p. 121, Taf. XXIV, Fig. 5, 10; Fontaine, in Ward, 19th. Ann. Rept. U. S. 
Geol. Surv., Pt. II, 1899, p. 660, Taf. CLXI, Fig. 10—15 — zu Onychiopsis 
brevifolia (Fontaine) Berry — E. W. Berry (31), p. 329 — E. W. Berry (35), 
p. 278. 
Thyrsopteris brevipennis Fontaine, Monogr. U. S. Geol. Surv., Vol. XV, 1890, 
p. 124, Taf. XXXIV, Fig. 3, XXXVI, Fig. 2, XXXVII, Fig. 3, 9, XXXVIII, 
Fig. 1, XLI, Fig. 4; Fontaine, in Ward, 19th Ann. Rept. U. S. Geol. Surv., 
Pt. II, 1899, p. 662, Taf. CLXII, Fig. 1 a — zu Onychiopsis latiloba 
(Fontaine) Berry — E. W. Berry (31), p. 332 — E. W. Berry (35), p. 273. 
Thyrsopteris crassinervis Fontaine, Monogr. U. S. Geol. Surv., Vol. XV, 1890, 
p. 130, Taf. XLI, Fig. 1—3; Fontaine, in Ward, 19th Ann. Rept. U. S. 
Geol. Surv., Pt. II, 1899, p. 658, Taf. CLXI, Fig. 3, 4; Fontaine, in Ward, 
Monogr. U. S. Geol. Surv., Vol. XLVIII, 1906, p. 513, 528, Taf. CXII, 
Fig. 5, 6 — zu Onychiopsis nervosa (Fontaine) Berry — E. W. Berry (31), 
p. 327 — E. W. Berry (35), p. 279, 280. 
Thyrsopteris crenata Fontaine, Monogr. U. S. Geol. Surv., Vol. XV, 1890, p. 127, 
Taf. XXXIX, Fig. 1,2 — zu Onychiopsis latiloba (Fontaine) Berry — 
E. W. Berry (31), p. 332 — E. W. Berry (35), p. 273. 
Thyrsopteris decurrens Fontaine, Monogr. U. S. Geol. Surv., Vol. XV, 1890, 
p. 130, Taf. XLIII, Fig. 7, XLVI, Fig. 2, 4, XLIX, Fig. 5-7; Fontaine, 
in Ward, Monogr. U. S. Geol. Surv., Vol. XLVIII, 1906, p. 484, 491, 511, 
525, Taf. CXI, Fig. 11 — zu Onychiopsis Göpperti (Schenk) Berry — E. W. 
Berry (31), p. 326 — E. W. Berry (35), p. 281, 282. 
Thyrsopteris densifolia Fontaine, Monogr. U. S. Geol. Surv., Vol. XV, 1890, 
p. 129, Taf. XXXIX, Fig. 3, XL, Fig. 2—5, LI, Fig. 5; Fontaine, in Ward, 
Monogr. U. S. Geol. Surv., Vol. XLVIII, 1906, p. 484, 511, 517 — zu 
Onychiopsis Göpperti (Schenk) Berry — E. W. Berry (31), p. 325 — 
E. W. Berry (35), p. 281, 282. 
Thyrsopteris dentata Fontaine, Monogr. U. S. Geol. Surv., Vol. XV, 1890, p. 121, 
Taf. XXIV. Fig. 4, 6, 7, 9, XXV, Fig. 1, 2 — zu Onychiopsis brevifolia 
(Fontaine) Berry — E. W. Berry (31), p. 329 — E. W. Berry (35), p. 278. 
