RAS (2021). Involutisporonites crassus Z.C. Song & Liu Cao, 1994. Accessed at: http://ras.biodiversity.aq/aphia.php?p=taxdetails&id=988717 on 2024-05-04
RAS (Eds.) (2024). Register of Antarctic Species. Involutisporonites crassus Z.C. Song & Liu Cao, 1994. Accessed at: https://ras.biodiversity.aq/aphia.php?p=taxdetails&id=988717 on 2024-05-04