# S4 method for chronologies
length(x)# S4 method for collunits
length(x)
# S4 method for contacts
length(x)
# S4 method for datasets
length(x)
# S4 method for publications
length(x)
# S4 method for samples
length(x)
# S4 method for sites
length(x)
# S4 method for speleothems
length(x)
# S4 method for taxa
length(x)