Maryland Geological Survey 275 



Sphenopteris Mantelli Unger, 1850, Gen. et Sp., 1850, p. 108. 



Sphenopteris Mantelli Bronn, 1852, Leth. geogn., vol. ii, 1851-52, p. 49, pL 



xxviii, figs. 4a, b. 

 Sphenopteris Mantelli, Ettingshausen, 1852, Abh. k. k. geol. Reichs, p. 14, 



pi. iv, figs. 3, 4. 

 Microlepia Mantelli Ettingshausen, 1865, Farnkrauter der Jetztwelt, p. 216. 

 Sphenopteris antipodum Tate, 1867, Quart. Jour. Geol. Soc, London, vol. 



xxiii, p. 146, pi. vi, fig. 3. 

 Sphenopteris Mantelli Schimper, 1869, Pal. Veget., tome i, p. 393; Ibid., 



vol. ill, 1874, p. 469. 

 Sphenopteris Mantelli Scbenk, 1871, Palfpontographica, Band xix, p. 6 



(208), pi. ii, figs. 1-8; pi. iv, fig. 6 (?); Ibid., vol. xxiii, 1875, p. 158, 



pi. xxviii, fig. 12, 

 Sphenopteris Goepperti Schenk, 1871 (pars), Palaeont., Band xix, p. 7, 



(209), pi. iv, fig. 3 (non figs. 2, 4, 5 or pi. ix, fig. 2). 

 Sphenopteris Mantelli Heer, 1881, Cont. Fl. Foss. Port., p. 12, pi. xi, figs. 



1-5; pi. xii, figs. 2b, 2bb. 

 Aspidium Oerstedi Lesquereux, 1888, Proc. U. S. Nat. Mus., vol. xi, p. 32 



in part, quoad Cat. U. S. Nat. Mus., No. 2434, Lesquereux's Nos. 913- 



915a. 

 Sphenopteris Mantelli Fontaine, 1890, Mon. U. S. Geol. Survey, vol. xv, 



1889, p. 91, pi. i, figs. 1, 2. 

 Sphenopteris Mantelli Nathorst, 1890, Denks. k. Akad. Wiss., Wien, Band 



Ivii, p. 55. 

 Thyrsopteris insignis Fontaine, 1890, Monogr. U. S. Geol. Survey, vol. 



XV, 1889, p. 127, pi. xxxix, fig. 4; pi. xl, fig. 1; pi. xli, fig. 6; pi. xlii, 



figs. 1, 2, 4; pi. xliii. figs. 1, 3. 

 Thyrsopteris insignis angustipennis Fontaine, 1890, Mon. U. S. Geol. Surv., 



vol. XV, 1889, p. 128, pi. xlii, fig, 3; pi. xliii, fig. 2. 

 Thyrsopteris angustifolia Fontaine, 1890, Mon. U. S. Geol. Surv., vol. xv, 



1889, p. 131, pi. xliv, fig. 4; pi. xlv, fig. 3; pi. xlviii, fig. 2; pi. xlix, 



figs. 3, 4; pi. iv, fig. 2; pi. Iviii, fig. 8. 

 Thyrsopteris microphylla Fontaine, 1890, Mon. U. S. Geol. Surv., vol. xv, 



1889, p. 131, pi. xlv, figs. 1, 2, 4, 5. 

 Thyrsopteris rarinervis Fontaine, 1890, Mongr. U. S. Geol. Survey, vol. xv, 



1889, p. 123, pi. xxvi, figs. 6, 7; pi. xliii, figs. 4-6; pi. xliv, figs. 1, 2, 5; 



pi. xlix, fig. 2; pi. clxix, figs. 6, 7. 

 Sphenopteris Mantelli Engelliardt, 1891, Kreidepflanzen von Niederscliona, 



Abh. Isis Dresden, p. 79. 

 Sphenopteris Mantelli Saporta, 1891, Compt. rendus, tome cxiii, p. 250. 

 Sphenopteris Mantelli Saporta, 1894, Fl. Foss. Portugal, pp. 72, 124, 157, pi. 



XV, figs. 8-12; pi. xviii, fig. 5; pi. xxiii, figs. 1, 2, 8; pi. xxviii, fig. 2; 



pi. xxix, fig. 1; pi. XXX, figs. 9, 10; pi. xxxi, figs. 1, 2. 

 Onychiopsis Mantelli Seward, 1894, Wealden Flora, pt. i, p. 41, figs. 4, 5 on 



p. 50, fig. 6 on p. 52, pi. ii, fig. 1, pi. iii, figs. 1-4. 

 Thyrsopteris dentifolia Fontaine, 1899, in Ward, 19th Ann. Rept. U. S. 



Geol. Survey, pt. ii, p. 660, pi. clxi, figs. 6-9. 



