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\section{A preliminary data standard for paleoclimatology}  The flexible container described in section 2 can serialize any set of paleoenvironmental data with rich metadata. However this framework only becomes useful when a common vocabulary with explicit meanings is applied to the data. Developing this vocabulary requires buy-in from experts across the disparate domains of the paleogeosciences, and will be a gradual process of evolving standards. To begin this conversation, here we outline a preliminary metadata standards for required metadata, based on phase 2 of the \href{ http://www.pages-igbp.org/workinggroups/2k-network/intro}{Past Global Changes (PAGES) past two thousand years (2k)} project. The following are the minimal metadata for every paleoArchive in the network. Many records include additional desirable data and metadata; an ongoing extended metadata table is available here. To illustrate this standard more concretely, we use the dataset of \cite{Thornalley_2009} \citet{Thornalley_2009}  as an example. \begin{description}  \item[Base metadata] metadata that apply to the paleoArchive as a whole: