. Heredity and evolution in plants . ntly formed at the top. loo !;ITY AM) KYI > I ION T \: II.— <H. (IKOLOGICAL TIMIC Era Cenozoic Quaternary Tertiary Mesozoic Secondary Paleozoic Primary Archean Period Holocene (recent, or the present)Pleistocene (ice age) PlioceneMioceneOligoceneEocene Upper CretaceousLower Cretaceous(Comanchean)JurassicTriassic Permian Upper Carboniferous (Pennsylvanian)Lower Carboniferous (Mississippian)DevonianSilurianOrdovicianCambrian / Huronian\ Laurentian 133. Paleogeography.—By changes in the relative levelof the land and sea, abo
. Heredity and evolution in plants . ntly formed at the top. loo !;ITY AM) KYI > I ION T \: II.— <H. (IKOLOGICAL TIMIC Era Cenozoic Quaternary Tertiary Mesozoic Secondary Paleozoic Primary Archean Period Holocene (recent, or the present)Pleistocene (ice age) PlioceneMioceneOligoceneEocene Upper CretaceousLower Cretaceous(Comanchean)JurassicTriassic Permian Upper Carboniferous (Pennsylvanian)Lower Carboniferous (Mississippian)DevonianSilurianOrdovicianCambrian / Huronian\ Laurentian 133. Paleogeography.—By changes in the relative levelof the land and sea, above referred to, rocks contain-ing fossils may be elevated as dry land, and frequentlyas mountains, so that remains of marine organisms, aswell as of others, are often found at high elevations. Insome cases forests near the seashore have been rovered over with sediment, then elevated again asdry land, so that subsequent excavations have revealedthe fossilized trunks and stumps (Figs. 83 and 84). Thus PALEOBOTANY 191. FIG. 83.—Fossil tree stumps in a carboniferous forest, Victoria Park,Glasgow. (Cf. Fig. 84.) (After Seward.)
Size: 1777px × 1406px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, bookidheredityevol, bookyear1920
