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Phylogeny

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brachiosteve

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Introduction.

Phylogeny (tribe producing):

There are a lot of similar terms ore methods to describe systematic ordering of life and the associated models used. Phylograms, cladograms, dendrograms, phenegrams, taximetrics, taxonomy, evolution etc.  Some are used interchangeably or as synonyms or are misused. In fact,  many experts can’t agree and it can be somewhat confusing. There will be more clarification and discussion on this elsewhere within the Forums. For now, I’ll leave you to compare some dictionaries if it interests you, or here’s some brief discussion/views on the matter: (https://www.researchgate.net/post/Cladistics_Vs_Phylogenetics_What_is_the_difference).

The Explorer itself is a dendrogram – a general term to describe a hierarchical classification system, relating to anything. It is partly a cladagram, in that nodes are placed in relation to their closest neighbours but its branch lengths are currently unrelated to time length spanning between them and it is based on a system of clades; and it is partly a phylogram because it is built on a testable hypotheses of the evolutionary relationship of all life through time. It is a tree, merely because it resembles a tree structure. Some systems, for example are largely based on morphological similarity, and others are more based on genetic comparisons and/or other aspects like physiology, geography, behaviour etc. or limited by what is available – long extinct life has no DNA to use/test for example. This all considers a range of factors, and it also depends on exactly what you want to determine from it.

The Explorer may adapt to include branch/time lengths, either directly or in association with a scalable timeline along the bottom or by indices on the branches, if feasible. Phylogenetic analysis software will also become increasingly involved, and many other functions, features and fields will be added.

Do enjoy the many related sites, like the Facebook group and the Forums, where there are a range of discussions and dedicated work groups for those attached or helping with the project in any way. The Forums are high quality and constantly expanding, so watch out for notices and updates on this.

If you are interested in biology and related life and earth sciences, especially evolution, whatever your level, it will offer something for you. We are also, simultaneously, always making it all the more inclusive for anyone with an impairment, disability or learning difficulty.  

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