. Cryptogamic plants of the USSR. (Flora sporovykh rastenii SSSR). Plants. FIGURE 6. Characteristic silicoflagellate complex of the Early Eocene of the eastern slope of the Urals and the Trans-Urals: 1—Dictyocha 1 a mellif era Gleser var. lame Hi f era; 2—D. 1. var. constrict a Gleser; 3 —D. 1. var. hastata Gleser; 4-Naviculopsis robusta Defl.; 5 —Dictyo- cha elongata Gleser; 6—D. navicula Ehr.; 7—D. fibula var. fibula f. eocaeni- ca Krotov, The Early Eocene flora differs sharply from the known Early Paleocene flora in possessing several new species and even 2 new genera — Navi- culopsis Freng
. Cryptogamic plants of the USSR. (Flora sporovykh rastenii SSSR). Plants. FIGURE 6. Characteristic silicoflagellate complex of the Early Eocene of the eastern slope of the Urals and the Trans-Urals: 1—Dictyocha 1 a mellif era Gleser var. lame Hi f era; 2—D. 1. var. constrict a Gleser; 3 —D. 1. var. hastata Gleser; 4-Naviculopsis robusta Defl.; 5 —Dictyo- cha elongata Gleser; 6—D. navicula Ehr.; 7—D. fibula var. fibula f. eocaeni- ca Krotov, The Early Eocene flora differs sharply from the known Early Paleocene flora in possessing several new species and even 2 new genera — Navi- culopsis Freng. and Distephanus Stohr. Silicoflagellates of the Middle (?) Eocene Results of the examination of Middle Eocene silicoflagellate flora of the southern part of Taz peninsula, as well as the Sherkaly settlement and the areas of Ivdel' and Serov on the eastern slope of the Northern and Central Urals are given in Table 52. The table shows that a total of 17 silicoflagellate species, varieties and ^„ forms are known from the Middle (?) Eocene. These are distributed among the genera Dictyocha Ehr. and Naviculopsis Freng., both of the family Dictyochaceae Lemm. Most of the forms (14) belong to Dictyocha Ehr., while fewer (3) belong to Naviculopsis Freng. Dictyocha frenguellii var. carentis Gleser f. carentis and Naviculopsis biapiculata (Lemm.) Freng. var. biapiculata are the most widespread and were encountered in all areas. The latter usually occurs at a lower density. In addition, Dictyocha lamellifera Gleser var. lamellifera is almost universally encountered. 186. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Botanicheskii institut im. V. L. Komarova. Jerusalem [Published for the National Science Foundation, Washington, D. C. by the Israel Program for Scientific Translations
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Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectplants
