bivalves

A dataset containing the (palaeo)coordinates and genus identifications of
8,000 marine bivalves from the Pliocene (ca. 5.3-2.6 Ma). Records with
uncertain or unaccepted taxonomic names, non-marine palaeo-environments,
or missing coordinates are excluded from the original download
(24 June 2022).

datasets

Divide taxonomic occurrence data into geographic regions of fair
comparison, with three customisable methods to standardise area and extent.
Calculate common biodiversity and range-size metrics on subsampled data.
Background theory and practical considerations for the methods are described
in Antell and others (2023) <doi:10.31223/X5997Z>.

Gawain Antell

divvy

Spatial Subsampling of Biodiversity Occurrence Data

bivalves function

A data frame with 8095 rows and 9 variables:<dl>
<dt>genus</dt>
<dd>Latin genus identification. Subgenera are not elevated.</dd><dt>paleolng, paleolat</dt>
<dd>Coordinates of an occurrence, rotated to
its palaeogeographic location with the tectonic plate model of
<a href="https://www.earthbyte.org/">GPlates</a></dd><dt>collection_no, reference_no</dt>
<dd>Unique identifiers for the collection and published
reference containing the occurrence</dd><dt>environment</dt>
<dd>One of 23 marine environment categories</dd><dt>max_ma, min_ma</dt>
<dd>Bounds of the age estimate for an occurrence</dd><dt>accepted_name</dt>
<dd>Original identification, including subgenus and
species epithet if applicable, according to the latest PBDB
accepted taxonomy at time of download</dd>
</dl>

Format

Paleobiology Database occurrences of Pliocene fossil bivalves — bivalves

A data frame with 8095 rows and 9 variables:<dl>
<dt>genus</dt>
<dd>Latin genus identification. Subgenera are not elevated.</dd>

<dt>paleolng, paleolat</dt>
<dd>Coordinates of an occurrence, rotated to
its palaeogeographic location with the tectonic plate model of
<a href='https://www.earthbyte.org/'>GPlates</a></dd>

<dt>collection_no, reference_no</dt>
<dd>Unique identifiers for the collection and published
reference containing the occurrence</dd>

<dt>environment</dt>
<dd>One of 23 marine environment categories</dd>

<dt>max_ma, min_ma</dt>
<dd>Bounds of the age estimate for an occurrence</dd>

<dt>accepted_name</dt>
<dd>Original identification, including subgenus and
species epithet if applicable, according to the latest PBDB
accepted taxonomy at time of download</dd>


</dl>

bivalves: Paleobiology Database occurrences of Pliocene fossil bivalves

Description

Usage

Arguments

Format