query: SELECT DISTINCT ?item ?taxonName ?date WHERE {
    ?item wdt:P105 wd:Q34740 .  # genus
    ?item wdt:P225 ?taxonName .
    ?item wdt:P842 ?fossilworksId .
    ?item wdt:P961 ?ipniId .
    ?item p:P842 ?statement .
    OPTIONAL {?statement prov:wasDerivedFrom/pr:P813 ?date .}
  }
  ORDER BY ASC(?taxonName)