In this article we will discuss about the fossil anglosperms of a plant. The fossil remains of true angiosperms are found only in the later geological periods and as a group they are more modern than other vascular plants. The fossil history of Angiosperms is too short to enable us to approach a definite conclusion. The palaeobotanical record of this [...]
It was in the Jurassic period when the Angiosperms first appeared on the globe. In the early Cretaceous the Angiosperms were confined to areas lying between latitudes 45°N and 45°S. The angiospermic flora was gradually replacing the non-flowering vegetation of the Jurassic and in the northern part of the globe Angiosperms established themselves only in late Cretaceous period. Teslenko proved [...]
A taxon is a biological group of any rank. Taxonomy is, therefore, the study of grouping or classification. It provides evidences by use of which a system of classification is worked out. Systematics is a wider term comprising identification of an individual organism, assigning a proper rank to the same and giving it a name. However, taxonomy and systematics are [...]