Country Centroids are a known data quality issue within the GBIF network.
Sometimes data publishers will not know the exact lat-lon location of a record and will enter the lat-long center of the country instead. This is a data issue because users might be unaware that an observation is pinned to a country center and assume it is a precise location.
Below I plot the top country centroids found on GBIF within at least 1km. Only the top unique point from each centroid is plotted, so there could be more occurrences near the centroids.