Talk:Geologic ages of earth history

Headings

Thomas, standard top-level headings are two equals signs; bold is not necessary. The reason it's two and not one is that single equals signs produce headings that are the same size as the title of the article --Larry Sanger 21:23, 15 April 2007 (CDT)

Hi Larry, Right. Caught that after I had switched them back. Thought it was my oversight. But I reverted them. All article headings start at double equals and work down from there. Thanks for the tip. - Thomas Simmons 14:33 18 April, 2007 (EPT)

Change title to 'Geologic time scale'?

Could we change the title of this article? To "Geologic time scale", I suggest. There are at least two reasons for this.

First, the description and classification of geologic time is usually found in Geologic time scales (what I also mean is that books about this topic are traditionally titled "Gologic time scale <year>", e.g., Gradstein F.M., Ogg J.G. and Smith A.G., 2004, A Geologic Time Scale 2004, Cambridge University Press).

Second, age has, in stratigraphy, a precise meaning. Strictly speaking, the article "Geologic ages of earth history" should thus be a list of ages.

This article is quite important for Earth Sciences. It might evolve into a description of the geologic time OR to a timeline of event in geologic time. I'll contribute soon (as soon as I can find the time). Thanks for starting it, for now! --Nereo Preto 01:57, 18 April 2007 (CDT)

The segmentation of time described, and the names of each segment, are not confined in their use only to geology. Biologists would also use many of these time classifications. Particularly within the study of Paleontology. Could this article be called the 'Classification of times'? Derek Harkness 04:53, 18 April 2007 (CDT)

Ok, let's do this: I'll take the time to collect some references and I'll post here soon some text about what could be this article about, and what should be its correct name in my view. I'll try to stick to authoritative sources. Then we'll discuss about it on the base of sources (of course, everyone who believes he has an argument is welcome to contribute! Don't take my step as something like "I'm the expert, shut up" please!)

The article of course can evolve under its current name for the moment. I suggest, however, to take a look at chronostratigraphy, where I posted a table with all divisions of geologic time. Related articles may be also useful (see links there). --Nereo Preto 11:17, 18 April 2007 (CDT)