TYPE SPECIMENS OF FOSSIL PLANTS. 331 



7346. Thyrsopteris dentifolia Fontaine. Type. 



Dakota (Dow. Cret.). Two miles southeast of Barrett, 

 Crook County, Wyoming. 



Fontaine, Nineteenth Ann. Rept. U. S. Geol. Surv., Pt. II, 1899, 

 p. 660, pi. 161, figs. 6-9. 



3222. Thyrsopteris distans Fontaine. Type. 



Potomac (Dow. Cret.). 72d milepost, near Brooke, Vir- 

 ginia. 



Fontaine, Mon. XV, U. S. Geol. Surv., 1889, p. 134, pi. 47, fig. 3; 

 pi. 54, fig. 8. 



3 1 91. Thyrsopteris divaricata Fontaine. Types. 



3770. Potomac (Dow. Cret.). Fishing hut above Dutch Gap 



3776. Canal; banks of same canal; Fredericksburg, Virginia. 



Fontaine, Mon. XV, U. S. Geol. Surv., 1889, p. 125, pi. 37, figs. 5-8; 

 pi. 170, fig. 1. 



3835. Thyrsopteris elliptica Fontaine. Types. 



3220. Potomac (Dow. Cret.). Fredericksburg; banks of Dutch 

 3977. Gap Canal, Virginia. 



Fontaine, Mon. XV, U. S. Geol. Surv., 1889, p. 133, pi. 24, fig. 3; 

 pi. 46, fig. 1; pi. 50, figs. 6, 7; pi. 51, figs. 4, 6, 7; pi. 54, fig. 6; 

 pi. 55, fig. 4; pi. 56, figs. 6, 7; pi. 57, fig. 6; pi. 58, fig. 2. 



5959. Thyrsopteris elliptica Fontaine. Illustrated specimen. 



Dakota (Dow. Cret.). South Fork Hay Creek near Bar- 

 rett, Crook County, Wyoming. 



Fontaine, Nineteenth Ann. Rept. U. S. Geol. Surv., Pt. II, 1899, 

 p. 659, pi. 161, fig. 5. 



3221. Thyrsopteris heteroloba Fontaine. Type. 



Potomac (Dow. Cret.). Fredericksburg, Virginia. 



Fontaine, Mon. XV, U. S. Geol. Surv., 1889, p. 139, pi. 53, fig. 4. 



3934. Thyrsopteris heteromorpha Fontaine. Type. 



Potomac (Dow. Cret.). Fredericksburg, Virginia. 



Fontaine, Mon. XV, U. S. Geol. Surv., 1889, pp. 136, 137, pi. 52, 

 fig. 1. 



3307. Thyrsopteris insignis Fontaine. Types. 



3770. Potomac (Dow. Cret.). Fredericksburg; roadside near 



3834. Potomac Run, Virginia. 



3 8 3 6 - Fontaine, Mon. XV, U. S. Geol. Surv., 1889, pp. 127, 128, pi. 39, 



fig. 4; pi. 40, fig. 1; pi. 41, fig. 6; pi. 42, figs. 1, 2, 3; pi. 43, 

 figs. 1, 3. 



3446. Thyrsopteris insignis angustipennis Fontaine. Type. 



Potomac (Dow. Cret.). Fredericksburg, Virginia. 



Fontaine, Mon. XV, U. S. Geol. Surv., 1889, p. 129, pi. 42, fig. 3; 

 pi. 43, fig. 2. 



3352. Thyrsopteris meekiana Fontaine. Types. 



3930. Potomac (Dow. Cret.). Fredericksburg, and fishing hut 



3932. above Dutch Gap Canal, Virginia; Covington street, 



Baltimore, Maryland. 



Fontaine, Mon. XV, U. S. Geol. Surv., 1889, pp. 125-126, pi. 38, 

 figs. 2-4, 8; pi. 50, figs. 7, 8; pi. 51, fig. 3. 



