NEWS

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FossilSim 2.4.4 (2026-02-26)

• some dependencies were made optional to make installation easier

FossilSim 2.4.3 (2025-11-06)

• technical changes for compatibility with the new ggtree version.

FossilSim 2.4.2 (2025-10-28)

Bug fixes

• fixed an issue leading to duplicated tip IDs in SAtree.from.fossils
• fixed a bug with the prune.fossil.tips function in trees with edges of length 0

New functionality

• added ordering options to SAtree.from.fossils to choose whether fossils are ordered from the youngest or oldest
• added option for custom X axis label in plot.fossils

FossilSim 2.4.1 (2024-10-02)

• fixed dependency issues due to the new ggtree version

FossilSim 2.4.0 (2024-09-05)

New functionality

• added a new structure, the fbdrange object, to store the results of FBD-range inferences with budding (e.g. the output of the sRanges package for BEAST2)
• added plotting for fbdrange objects, showing the oriented tree with stratigraphic ranges

Bug fixes

• improved checks on fossils object so invalid data types are rejected instead of crashing
• removed alphanumeric option from paleotree.record.to.fossils as it was incompatible with the fix to data types

FossilSim 2.3.3 (2024-04-29)

New functionality

• plot.fossils now integrates an optional extant sampling probability (rho) when plotting the reconstructed tree

Function changes

• cosmetic changes to plot.fossils to make the axis more visible
• colours used for the taxonomy in plot.fossils and plot.taxonomy are no longer random and can be customized

FossilSim 2.3.2 (2023-10-05)

New functionality

• sim.tip.samples and sim.extant.samples can now use tip-specific sampling probabilities by setting argument rho to a vector of values instead of a single value.

Technical changes

• package TreeSim was moved from dependencies to suggested packages. A separate installation of TreeSim is now required to run functions sim.fbd.*

FossilSim 2.3.1 (2022-07-19)

New functionality

• sim.fossils.environment now takes an argument use.exact.times which determines if fossil sampling times are recorded exactly or based on interval bounds

Bug fixes

• Fixed a bug in plot.fossils and plot.taxonomy which would not restore plotting parameters properly in some cases.

Documentation changes

• Updated the documentation of FBD simulation functions (sim.fbd.taxa, sim.fbd.age) to clarify the sampling process when complete = FALSE

FossilSim 2.3.0 (2022-04-19)

New functionality

• Added Lewis Mk, BM (Brownian motion) and OU (Ornstein-Uhlenbeck) models as options to simulate traits in function sim.trait.values.

Function changes

• SAtree.from.fossils now returns a list of tree (the resulting SA tree) and fossils (the original fossils data.frame updated to include the tip label of each fossil in the SA tree). NB: this change breaks compatibility with previous versions of the function.

FossilSim 2.2.0 (2021-04-05)

New functionality

• Added option to plot the reconstructed tree for a set of fossils and tree objects. This can be done by passing reconstructed = TRUE to plot.fossils or the objects can be generated separately using the function reconstructed.tree.fossils.objects.

Functions associated with the occurrence birth-death model

• Added fossils as a function argument to the fossil simulation functions so that existing fossil objects can be appended.
• Added ignore.taxonomy as a function argument to the fossil simulation functions. If true function will not return species or edge info.
• Added show.unknown to plotting function. If species or edge info is unknown these fossils will appear next to the tree.

Bug fixes

• Fixed bug in plot.fossils which led to proxy data being plotted the wrong way round on the x-axis.

FossilSim 2.1.1 (2019-02-21)

• Fixed a bug in sim.fbd.rateshift.taxa which led to trees being simulated with the wrong rates. NB: Any dataset simulated with this function before the fix is invalid and needs to be rerun.

FossilSim 2.1.0 (2018-11-16)

New functionality

• The new function fossils.to.pyrate can be used to convert objects generated by this package into PyRate format.
• The new functions fossils.to.BEAST.constraints and fossils.to.BEAST.start.tree.Rd can be used to convert objects generated by this package into BEAST2 format.
• The new functions subsample.fossils.oldest, subsample.fossils.oldest.and.youngest, subsample.fossils.uniform and subsample.fossils.youngest can be used to subsample fossil occurrences.

Function changes

• The innovative rates model has been integrated into the independent model in the function sim.trait.values. Parameters are unchanged.
• The asymmetric plot function has been renamed rangeplot.asymmetric and separated from the SAtree objects.

Bugfixes

• Fixed several bugs in rangeplot.asymmetric that could lead to crashes or plots with missing edges.
• Fixed a bug in SAtree.from.fossils where SAtree objects were not created properly when using an empty fossils object.