| australia | | skeletonema ardens | species | 4 | 0 |
| australia | | skeletonema dohrnii | species | 1 | 0 |
| brazil | | skeletonema cf. pseudocostatum | species | 1 | 0 |
| brazil | | skeletonema costatum | species | 2 | 0 |
| brazil | | skeletonema tropicum | species | 1 | 0 |
| canada | | skeletonema aff. japonicum ial-2014 | species | 1 | 0 |
| canada | | skeletonema costatum | species | 7 | 0 |
| canada | | uncultured skeletonema | species | 2 | 0 |
| canada | new brunswick | skeletonema sp. 1bof | species | 21 | 0 |
| china | | skeletonema ardens | species | 3 | 0 |
| china | | skeletonema costatum | species | 13 | 0 |
| china | | skeletonema dohrnii | species | 3 | 0 |
| china | | skeletonema grevillei | species | 3 | 0 |
| china | | skeletonema menzellii | species | 2 | 0 |
| china | | skeletonema pseudocostatum | species | 2 | 0 |
| china | | skeletonema sp. gfc-2005.1 | species | 1 | 0 |
| china | | skeletonema sp. gfc-2005.2 | species | 1 | 0 |
| china | | skeletonema sp. gfc-2005.3 | species | 1 | 0 |
| china | | skeletonema sp. gfc-2005.4 | species | 1 | 0 |
| china | | skeletonema sp. gfc-2005.5 | species | 1 | 0 |
| china | | skeletonema tropicum | species | 2 | 0 |
| china | fujian | skeletonema grevillei | species | 1 | 0 |
| china | guangdong | skeletonema dohrnii | species | 1 | 0 |
| costa rica | | skeletonema tropicum | species | 1 | 0 |
| egypt | alexandria governorate | skeletonema pseudocostatum | species | 2 | 0 |
| estonia | | skeletonema marinoi | species | 1 | 0 |
| finland | | skeletonema marinoi | species | 2 | 0 |
| france | | skeletonema marinoi | species | 1 | 0 |
| france | pays de la loire region | skeletonema costatum | species | 0 | 1 |
| france | rhone-alpes region | skeletonema costatum | species | 0 | 1 |
| hong kong | | skeletonema marinoi | species | 1 | 0 |
| india | | skeletonema ardens | species | 1 | 0 |
| india | | skeletonema pseudocostatum | species | 1 | 0 |
| indonesia | jakarta | skeletonema costatum | species | 3 | 0 |
| ireland | | skeletonema subsalsum | species | 1 | 0 |
| italy | | skeletonema marinoi | species | 8 | 0 |
| italy | | skeletonema tropicum | species | 3 | 0 |
| italy | campania region | skeletonema dohrnii | species | 5 | 0 |
| italy | campania region | skeletonema menzellii | species | 4 | 0 |
| italy | campania region | skeletonema pseudocostatum | species | 10 | 0 |
| italy | campania region | skeletonema tropicum | species | 5 | 0 |
| japan | | skeletonema costatum | species | 1 | 0 |
| japan | | skeletonema dohrnii | species | 2 | 0 |
| japan | | skeletonema japonicum | species | 2 | 0 |
| japan | | uncultured skeletonema | species | 3 | 0 |
| japan | chiba prefecture | skeletonema dohrnii | species | 5 | 0 |
| japan | chiba prefecture | skeletonema sp. ftk001 | species | 1 | 0 |
| japan | chiba prefecture | skeletonema sp. ftk035 | species | 1 | 0 |
| japan | fukuoka prefecture | skeletonema ardens | species | 4 | 0 |
| japan | fukuoka prefecture | skeletonema cf. pseudocostatum | species | 1 | 0 |
| japan | fukuoka prefecture | skeletonema costatum | species | 4 | 0 |
| japan | fukuoka prefecture | skeletonema dohrnii | species | 5 | 0 |
| japan | fukuoka prefecture | skeletonema menzellii | species | 4 | 0 |
| japan | fukuoka prefecture | skeletonema potamos | species | 4 | 0 |
| japan | fukuoka prefecture | skeletonema pseudocostatum | species | 1 | 0 |
| japan | fukuoka prefecture | skeletonema tropicum | species | 1 | 0 |
| japan | hiroshima prefecture | skeletonema japonicum | species | 1 | 0 |
| japan | hokkaido prefecture | skeletonema dohrnii | species | 1 | 0 |
| japan | hokkaido prefecture | skeletonema japonicum | species | 1 | 0 |
| japan | hokkaido prefecture | skeletonema menzellii | species | 1 | 0 |
| japan | hokkaido prefecture | skeletonema pseudocostatum | species | 4 | 0 |
| japan | hyogo prefecture | skeletonema cf. pseudocostatum | species | 6 | 0 |
| japan | hyogo prefecture | skeletonema dohrnii | species | 7 | 0 |
| japan | hyogo prefecture | skeletonema sp. fos010 | species | 1 | 0 |
| japan | hyogo prefecture | skeletonema tropicum | species | 2 | 0 |
| japan | kanagawa prefecture | skeletonema dohrnii | species | 4 | 0 |
| japan | kanagawa prefecture | skeletonema sp. ftk162 | species | 1 | 0 |
| japan | kyoto prefecture | skeletonema costatum | species | 1 | 0 |
| japan | miyagi ken prefecture | skeletonema dohrnii | species | 5 | 0 |
| japan | miyagi ken prefecture | skeletonema grevillei | species | 4 | 0 |
| japan | miyagi ken prefecture | skeletonema japonicum | species | 4 | 0 |
| japan | miyagi ken prefecture | skeletonema menzellii | species | 1 | 0 |
| japan | nagasaki prefecture | skeletonema costatum | species | 2 | 0 |
| japan | nagasaki prefecture | skeletonema potamos | species | 1 | 0 |
| japan | osaka prefecture | skeletonema dohrnii | species | 4 | 0 |
| japan | osaka prefecture | skeletonema sp. fos018 | species | 1 | 0 |
| japan | osaka prefecture | skeletonema sp. fos052 | species | 1 | 0 |
| japan | osaka prefecture | skeletonema sp. fos070 | species | 1 | 0 |
| japan | osaka prefecture | skeletonema sp. fos089 | species | 1 | 0 |
| japan | osaka prefecture | skeletonema sp. fos209 | species | 1 | 0 |
| japan | saga prefecture | skeletonema ardens | species | 1 | 0 |
| japan | saga prefecture | skeletonema costatum | species | 20 | 0 |
| japan | saga prefecture | skeletonema dohrnii | species | 6 | 0 |
| japan | saga prefecture | skeletonema japonicum | species | 2 | 0 |
| japan | saga prefecture | skeletonema menzellii | species | 1 | 0 |
| japan | tokyo prefecture | skeletonema ardens | species | 1 | 0 |
| japan | tokyo prefecture | skeletonema costatum | species | 2 | 0 |
| japan | tokyo prefecture | skeletonema dohrnii | species | 7 | 0 |
| japan | tokyo prefecture | skeletonema japonicum | species | 5 | 0 |
| japan | toyama prefecture | skeletonema costatum | species | 11 | 0 |
| japan | toyama prefecture | skeletonema dohrnii | species | 3 | 0 |
| japan | toyama prefecture | skeletonema japonicum | species | 4 | 0 |
| japan | toyama prefecture | skeletonema menzellii | species | 1 | 0 |
| kuwait | | skeletonema japonicum | species | 2 | 0 |
| mexico | | skeletonema japonicum | species | 1 | 0 |
| oman | | skeletonema grevillei | species | 3 | 0 |
| panama | | skeletonema menzellii | species | 1 | 0 |
| panama | | skeletonema tropicum | species | 1 | 0 |
| poland | | skeletonema marinoi | species | 1 | 0 |
| poland | pomorskie province | skeletonema marinoi | species | 2 | 0 |
| portugal | | skeletonema costatum | species | 5 | 0 |
| portugal | setubal district | skeletonema marinoi | species | 1 | 0 |
| singapore | | skeletonema ardens | species | 3 | 0 |
| south korea | | skeletonema costatum | species | 1 | 0 |
| spain | | skeletonema costatum | species | 3 | 0 |
| spain | | skeletonema dohrnii | species | 2 | 0 |
| spain | | skeletonema menzellii | species | 1 | 0 |
| suriname | | skeletonema dohrnii | species | 1 | 0 |
| sweden | | skeletonema costatum | species | 13 | 0 |
| sweden | | skeletonema marinoi | species | 4 | 0 |
| sweden | | skeletonema pseudocostatum | species | 2 | 0 |
| taiwan | | skeletonema tropicum | species | 1 | 0 |
| taiwan | | uncultured skeletonema | species | 9 | 0 |
| united states | | skeletonema costatum | species | 4 | 0 |
| united states | | skeletonema dohrnii | species | 1 | 0 |
| united states | | skeletonema grethae | species | 2 | 0 |
| united states | | skeletonema menzellii | species | 1 | 0 |
| united states | | skeletonema sp. ccmp1009 | species | 1 | 0 |
| united states | alaska | skeletonema dohrnii | species | 1 | 0 |
| united states | alaska | skeletonema sp. ccmp782s | species | 1 | 0 |
| united states | florida | skeletonema grethae | species | 1 | 0 |
| united states | maine | skeletonema menzellii | species | 1 | 0 |
| united states | massachusetts | skeletonema menzellii | species | 1 | 0 |
| uruguay | | skeletonema costatum | species | 5 | 0 |
| uruguay | | skeletonema tropicum | species | 4 | 0 |
| uruguay | montevideo department | skeletonema tropicum | species | 2 | 0 |
| vietnam | ho chi minh city | skeletonema costatum | species | 1 | 0 |