Show the paleobotanical evidence, Biology

Assignment Help:

Q. Show the Paleobotanical Evidence?

Paleobotany deals with the study of fossil records of plants and animals. New techniques and approaches to the study of fossil flowering plants provide taxonomic information. Paleobotany uses microfossils such as pollen or macrofossils of leaves, stems and other plant parts as source of data. Recent collection of well preserved angiosperm flowers from Eocene sediments of the southern United States and from kansas confirm the presence of diversified representatives of the present day "Amentiferae line" by middle Eocene time and their adaptation for wind pollination. Flowers and inflorescences with structural features allowing pollination by beetles, flies, beas, and butter flies were still in existence by middle Eocene. An extraordinary data source has been provided by the organic chemical profiles of miocene leaf Specimen s 'of Acer, Celtis, Ouercus, ulmus and zelkova. A high degree of correlation between chemical compounds of the fossils and those of modern species was found. Data provided by Paleobotany allow taxonomists to deal with the facts of the fossil record about angiosperms and their possible progenitors. However, the available data is still too limited for the construction of a valid general phylogenetic scheme.


Related Discussions:- Show the paleobotanical evidence

Xerophytes, Ask question #Mcharacteristics of xerophytesinimum 100 words ac...

Ask question #Mcharacteristics of xerophytesinimum 100 words accepted#

Find the effective spring constant of the molecule, A Molecule of DNA is 2....

A Molecule of DNA is 2.17 um long. The ends of the molecule become strongly ionixed: negative on one end, positive on the other. The helical molecule acts like a spring and compres

Microbiology.., describe the function of a bacterial flagellum

describe the function of a bacterial flagellum

Explain the three main cellular components of the blood, A. Describe the th...

A. Describe the three main cellular components of the blood and explain what might cause abnormal numbers of each of these components. B. Explain the importance of immunological

Zoology, Classification of the Phylum Protozoa up to orders

Classification of the Phylum Protozoa up to orders

What functions performed by vitamin and mineral for athletes, What function...

What functions performed by Vitamin and Mineral for athletes? Vitamins and minerals perform the same essential functions for athletes and non-athletes alike. However, owing t

Define criteria for assessment of vitamin b12 status, Define Criteria for A...

Define Criteria for Assessment of Vitamin B 12 Status? Low serum or plasma levels of vitamin B 12 should be the first indication of poor  status and this could be confirmed

What are the nine phyla of the kingdom animalia, Q Which are the beings tha...

Q Which are the beings that form the kingdom Animalia? What are the two big groups into which this kingdom is divided? The kingdom Animalia is the animal kingdom. usually the k

What is the functional unity of the kidneys, Q. What is the functional unit...

Q. What is the functional unity of the kidneys? The functional (filtering) unity of the kidneys is the nephron a nephron is made of efferent arteriole, afferent arteriole, glom

Assessment of aplastic anaemia, Assessment   The patient will present w...

Assessment   The patient will present with striking pallor, irritability and lethargy due to anaemia, bledding or bruising and petechiae due to thrombocytopenia, fever and infe

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd