CacheAnimatedMaps: Cache animated maps
In jwiggi18/HistoryOfEarth:

Create an array of animated maps, where the rows are taxa and the columns periods. "all" and "none" are possible taxa, and "all" is a possible period

CacheAnimatedMaps(start_time = NULL, stop_time = NULL,
  periods = NULL, taxa = GetTaxa(), step_size = 1,
  age_df = GetAgeDF(), specimen_df = specimens, interval = 0.5,
  use_cached_maps_only = TRUE, use_phylopics = FALSE,
  point_color = "red", gif_name = NULL, single_frame = FALSE,
  MaximumAnimate = FALSE)

`start_time`	The time of the first frame of the animation
`stop_time`	The time of the last frame of the animation before it starts looping back
`periods`	A vector of period names, capitalized properly (can be left blank)
`taxa`	A vector of taxon names (can be left blank)
`step_size`	How many million years to take in a single step
`age_df`	Data.frame of ages, typically from GetAgeDF()
`specimen_df`	Cached fossil localities and times
`interval`	How many seconds per frame
`use_cached_maps_only`	If TRUE, only uses the maps already in the package, rather than pulling from gplates
`use_phylopics`	If TRUE, use phylopic images; otherwise, use dots
`point_color`	If just plotting points, what color
`gif_name`	Path to gif, including its name
`single_frame`	If TRUE, just does a single frame. It picks the best time.
`MaximumAnimate`	If TRUE, animate everything. If false, static maps for taxa