How to relate an entity to a dataset?

Dear all,

In the biodiversity group we have defined a Taxon type. Taxa are usually 
part of taxonomic registries. So I'm wondering how to mark up a web page 
describing or referring to a given taxon while denoting that this taxon 
is part of a taxonomic registry.

Looking further in Bioschemas types, I see several ways of doing this, 
and I guess this question applies equally to other types.

We can think of a taxonomic registry as a schema.org/Dataset. In this 
context, each taxon would be a DataRecord, but how do we relate a 
DataRecord to its Dataset?

We can also think of a taxonomic registry as a DataCatalog wherein taxa 
would be Datasets (property includedInDataCatalog).

Could the datasets group on shed light on this? Also what about how the 
other groups have coped with this?

Thx,
    Franck.

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 Franck MICHEL - CNRS research engineer
Université Côte d’Azur, CNRS, Inria
I3S laboratory (UMR 7271)
franck.michel@cnrs.fr <mailto:franck.michel@cnrs.fr> - +33 (0)4 8915 4277