58 LOWER EOCENE FLORAS OF SOUTHEASTERN NORTH AMERICA. 



Section at Old Port Caddo Landinq. Harrison Counti/. Tex. 



Feet. 



1. Irregulai'ly ^^tratified saiKle and clay; about 10 



2. lieddi^h, more or li'.^s rross-bedded sands with ILmonitic geodes and silicified wood 50 



3. Sands with bowklors and more or less contorted masses of clay 10-15 



4. Interbedded grayish sands and bluish clays with small seam of lignite 55-GO 



5. Impure lignite bed. commonly replaced by iron carbonate, ironstone, or impure limestone, 



and containing ))lant remains 2 



6. Thinly laminated, bluish clay and sand: exjiosed 13 



A collection was made by Vaughaii front betl siderable interest, because it may be taken 



Xo. 5, which was tentatively identified by as typical of tiie Wilcox in the western Gulf 



Knowlton.' His list has ah-eady been repro- region. The details were described in 1902 



duced. As revised in the light of the present by Veatch.- Leaf remains are reported from 



extensive Wilcox collections it furnishes the calcareous concretions just below Harts Bluff 



following forms: on the Louisiana bank. A short distance 



Apocynophyllum tabellarum (?). below Hamilton and just above Chambers 



Asjjlenium eolignitica. Ferry sunilar materials carry leaf impressions, 



Canna eocenica. and a smaU amount of rather poor material 



Cinnamomuni affine. .^^.^^ collected. This was deposited at the 



Combretum oralis. j^t^^,,. York Botanical Garden, where I have 



Dryophvllum moon. .... „, , . , •,. , , p 



Ficus pianicostata maxima. Studied it. The only identihablo forms are 



Ficus schimperi. Grewiopsis tennesseensis Berry, wliich also 



Ficus vaughani. occm's south of Grand Junction, Tenn., and 



Grewiopsis tennesseensis. Ltgaimlnosites? amchioldes Lesquereux of the 



Meniphvlloides ettinsshauseni. -pv ' i tt' i y • i <■■ , „.f <^i,„ 



,, '.■ ., . " Denver and l<ort L nion lormations oi the 



Metopium wilcoxianum. t-.i-.i- • • mi 



Nectandra lancifolia. Kocky Mountaui province. The section as 



Nectandrasp. given by Veatch^ shows a bluff about 125 feet 



Oreodaphneobtusifiilia. high, the upper 70 feet of which was con- 



Persea longipetiolatum. ccalcd. The lower 56 feet consist of gray and 



Sabalites giayanus. light-vellow, slightly cross-bedded sands carry- 



Terminalia hilgardiana. . '^ - > o .' _ j 



mg large calcareous concretions that contaui 



None of these are species peculiar to the scattered fragments and more or less distorted 



Ackerman formation or lower Wilcox of the 1^.^,.^,^ ^^^.^ ^^^^^^^ ^^ y ^j. § ^^-^^^ ^^^^^^ 



eastern Gulf region: .3 occur in the Ackerman ^1,^ ^i^j^ .^^^^g Sabinetown, where, according to 



formation and the HoUy Springs sand: 2 are Harris, the marine fossils indicate the Bashi 



known only from the HoUy Springs sand; 1 is formation. The fossil plants, though too few 



found in the Ackerman formation and HoDy f^j. ^^^.^^-^^^ correlation, indicate a horizon not 



Springs sand as weU as in post-Wilcox deposits: ^i^^^, .^^^^^ probablv younger than the Hollv 



1, the characteristic Jleniph/lloides ettingshau- Springs sand or midclle Wilcox of Mississippi. 

 seni, is peculiar to the Grenada formation or 



uppermost Wilcox. The conclusion is iiievit- calaveras creek, wilson county. 



able that the deposits at Port Caddo are of Alexander Deussen discovered an outcrop 



late Wilcox age. containing Wilcox ])lants on Calaveras Creek 



about 500 yarils east of the San ^Vntonio & 



SABIXE RIVER, SABINE COUNTY. , n t, ■^ ■ vi-i r\ ^ rr 



xiransas Pass Kailway in Wilson County, lex. 

 The section of the Wilcox strata exposed T'^p section shows the following scqticnco of 

 along Sabine River from the vicinity of Rock imitc'rials: 



Bluff to a point below Sabinetown is of con- !Veatch,.\. C.Tlie geography and geology of the Sabine River, La.: 



Louisiana Geol. Siurey, pt. 6, pp. 107-127, 1902. 



' Vaughan, T. W., op. cit., p. 308. a Op. cit., p. 123. 



