Lists of entries treated as indicators of similar characteristics
data(keys)A list of 7 lists:
tenIntA list of vectors. Entries in the early_interval and late_interval variables of PaleoDB downloads indicate the collections' positions in the dynamic time scale. These entries were linked to 10 million year-resolution time scale stored in tens. These links were compiled using a download from the FossilWorks website (used to be http://www.fossilworks.org/), on 08 June, 2018. You can check the lookup table stratkeys here. This is version 0.9.2
stgIntA list of vectors. Entries in the early_interval and late_interval variables of PaleoDB downloads indicate the collections' positions in the dynamic time scale. These entries were linked to stage-resolution time scale stored in stages. See binInt for version information.
reefsA list of vectors. Entries in the environment field of the PaleoDB download indicate information regarding the likely reefal origin of carbonatic rocks. See the vignette ('§PhaneroCurve') on the exact use of these data. v0.9.
lithA list of vectors. Entries in the lithology1 field of the PaleoDB download indicate information regarding the substrate of the embedding rocks. This key maps the entries to siliciclastic, "carbonate" or "unknown" substrates. v0.9.
latA list of vectors. Entries in the paleolat field of the PaleoDB download indicate information regarding paleolatitude of the occurrences. This key maps the entries to "tropical" or "non-tropical" latitudes. v0.9.
grainA list of vectors. Entries in the lithology1 field of the PaleoDB download indicate information regarding the grain sizes of the depositional environment. This key maps the entries to "coarse", "fine" or "unknown" grain sizes. v0.9.
depenvA list of vectors. Entries in the environment field of the PaleoDB download indicate information regarding the onshore-offshore nature of the depositional environment. This key maps the entries to "onshore", "offshore" or "unknown" environment. v0.9.3
Entries in the stratigraphic, lithological and environment fields of current Paleobiology Database downloads are too numerous to form the basis of analyses without transformations.
This variable includes potential groupings of entries that represent similar characteristics. These objects can be used by the categorize function to create new variables of stratigraphic, environmental and lithological information.