Download e-book for iPad: Catalog of fossil spores and pollen. Volume 42. Cretaceous by Ames H.T., Spackman W.

By Ames H.T., Spackman W.

Show description

Read or Download Catalog of fossil spores and pollen. Volume 42. Cretaceous Spores and Pollen from the U.S.A. and the U.S.S.R PDF

Best biology books

Who Expert Committee on Biological Standardization 55th by PDF

This record offers the suggestions of a WHO specialist Committee commissioned to coordinate actions resulting in the adoption of foreign ideas for the construction and regulate of vaccines and different biologicals and the institution of foreign organic reference fabrics. The document begins with a dialogue of common concerns dropped at the eye of the Committee and gives info at the prestige and improvement of reference fabrics for varied antibodies, antigens, blood items and comparable elements, cytokines, progress components, and endocrinological elements.

Current Protocols in Stem Cell Biology - download pdf or read online

Released in association with the overseas Society for Stem mobilephone study (ISSCR), present Protocols in Stem mobile Biology covers the main primary protocols and techniques within the quickly growing to be box of Stem telephone Biology.  With established and confirmed protocols from laboratories around the globe, present Protocols in Stem telephone Biology presents equipment and insights that might improve the development of worldwide study.

Capillary Electrophoresis of Biomolecules: Methods and - download pdf or read online

Capillary electrophoresis (CE) is a comparatively new separation strategy compatible for dealing with small quantities of pattern vitally important in bioanalytical study and in a number of scientific, diagnostic, genetic, and forensic purposes. In Capillary Electrophoresis of Biomolecules: tools and Protocols, specialist researchers within the box offer key options to enquire CE concentrating on basic and complicated carbohydrates (polysaccharides), aminoacids, peptides and proteins, enzymes, and nucleic acids.

New PDF release: The Chromosome Complement

Fabric can serve either autocatalytic and heterocatalytic capabilities. therefore not just is it particular in itB means for self-replication yet its base series determines the specificity of proteins. And enzyme proteins are instantly chargeable for the peripheral metabolism which permits the organism to impose its personal form of order at the uncooked fabrics it absorbs.

Additional resources for Catalog of fossil spores and pollen. Volume 42. Cretaceous Spores and Pollen from the U.S.A. and the U.S.S.R

Example text

I. in diameter and becoming \"errucate to finely tuberculate in a few specimens. eplolepidilcs 1'eTrIICalllS 1Couper from the Jurassic of Xc\\' Zealand (Couper, 1953) ancl the Cretaceous of Eastern Australia (Cookson and Dettmann, 1958); it differs from t hi,; species, however, by its reduced ornamentation on the proximal surface; in Leplotcpiditcs the ornamentation is equally developed on both sides. OCC1lrrf'llre: Rare; sample frequency lo\\'; not restricted to any zone. I/%lyp(': Slide St. 5~plale 15, Jig, 1.

6; pI. 16, fig. 1 The spores and pollen of the Potomac Group of Maryland: Dept. , Mines and Water Resources, Bull. , 7 tabs. , 2 mi. SW of Hazelwood Ave. intersection, "Station 49" T~ horizon: Cretaceous, Potomac Group, Patuxent-Arundel contact (sample Lithology suggests Arundel Clay) Preparation: All samples collected from unconsolidated sediments which were easily disaggregated by crushing in a mortar with distilled H20. Organics separated by flotation in ZnC12 sol. 0 sp. ). , oxidized 20 min.

HnllllYJle, slide St. 1, note thickening at the ends. Description: Polysulcate pollen; outline elliptical with narrow ends; sculpture consisting of 10-14 alternating ridges and furrows, the ridges convergingat the. 5 p. wide, ca. 1 p. 5 p. apart. 5 p. thick. ; width 12(21)30 p. (to specimens). Comments: Similar to the pollen of Ephedra from Group n of Steeves and Barghoorn (1959). This species difTers from E. 11Iulticostatu}by its less numerous muri and the presence of a thickened area at t he ends.

Download PDF sample

Catalog of fossil spores and pollen. Volume 42. Cretaceous Spores and Pollen from the U.S.A. and the U.S.S.R by Ames H.T., Spackman W.

by Paul

Rated 4.80 of 5 – based on 9 votes