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193 articles
Genera and species that turn up in collections, with PBDB classification and range.
43 articles
Rock units collectors and dealers name on a label: age, lithology, members, what is found in them.
33 articles
Named sites — quarries, badlands, beaches — with land status and what the rules there are.
181 articles
The geologic time scale, every eon to age, with the boundary ages Macrostrat and PBDB publish.
120 articles
Species on the IMA list, with formula, system, hardness and type locality.
40 articles
Molluscan families, extant and fossil, after WoRMS and MolluscaBase.
23 articles
Preparation, conservation and documentation, in our own words with the science cited.
37 articles
What may be collected, kept and sold — by country and, for the United States, by state.
12 articles
Step-by-step: cataloguing, labelling, photographing, asking a forum for an identification.
121 articles
The words on a label and in a paper, defined.