Alveovallum H. Lange-Bertalot & K. Krammer in K. Krammer, 2000 (original description)
Alveovallum beyensii Lange-Bertalot & Krammer, 2000 accepted as
Pinnularia beyensii (Lange-Bertalot & Krammer) Y.Liu, Kociolek & Q.Wang in Y. Liu et al., 2018 (original description)
Hygropetra K. Krammer & H. Lange-Bertalot in K. Krammer, 2000 (original description)
Hygropetra balfourianaa (Grunow ex Cleve) K. Krammer & H. Lange Bertalot in K. Krammer, 2000 (new combination reference)
Hygropetra elongata Krammer & Lange-Bertalot, 2000 (original description)
Pinnularia acidophila Hofmann & K.Krammer, 2000 (original description)
Pinnularia acorica K.Krammer & D.Metzeltin, 2000 (original description)
Pinnularia acoricola var. rostellata (Hustedt) K.Krammer, 2000 accepted as
Pinnularia rostellata Hustedt, 1934 (new combination reference)
Pinnularia acrosphaeria var. parva K.Krammer, 2000 (original description)
Pinnularia acrosphaeria var. tumidula K.Krammer, 2000 (original description)
Pinnularia acuminata var. carteri K.Krammer, 2000 (original description)
Pinnularia acuminata var. novaezealandica K.Krammer, 2000 † (original description)
Pinnularia alabamae K.Krammer, 2000 † (original description)
Pinnularia alta K.Krammer, 2000 (original description)
Pinnularia amabilis K.Krammer, 2000 (original description)
Pinnularia angulosa Krammer, 2000 (original description)
Pinnularia angusta var. rostrata K.Krammer, 2000 (original description)
Pinnularia angustiborealis K. Krammer & H. Lange-Bertalot in K. Krammer, 2000 (original description)
Pinnularia appendiculata var. amaniana K.Krammer, 2000 (original description)
Pinnularia appendiculata var. brevistriata K.Krammer, 2000 (original description)
Pinnularia bertandii K. Krammer, 2000 (original description)
Pinnularia bertrandii var. angustefasciata K.Krammer, 2000 (original description)
Pinnularia bertrandii var. orleansiana K.Krammer, 2000 (original description)
Pinnularia biceps var. gibberula (Hustedt) K.Krammer, 2000 accepted as
Pinnularia interrupta var. gibberula Hustedt, 1950 (new combination reference)
Pinnularia bleischii K.Krammer, 2000 (original description)
Pinnularia borealis var. islandica Krammer, 2000 (original description)
Pinnularia borealis var. subislandica Krammer, 2000 (original description)
Pinnularia borealis var. sublinearis Krammer, 2000 (original description)
Pinnularia borealis var. tenuistriata Krammer, 2000 (original description)
Pinnularia bottnica K.Krammer, 2000 (original description)
Pinnularia brandeliformis var. linearis K.Krammer, 2000 (original description)
Pinnularia brebissonii var. lancarea K.Krammer, 2000 (original description)
Pinnularia brebissonii var. minuta K.Krammer, 2000 (original description)
Pinnularia brebissoniiformis K.Krammer, 2000 (original description)
Pinnularia canadensis K.Krammer, 2000 (original description)
Pinnularia carteri Krammer, 2000 (original description)
Pinnularia castraregina Krammer, 2000 (original description)
Pinnularia cherryfieldiana K.Krammer, 2000 † (original description)
Pinnularia claviculiformis D.Metzeltin & K.Krammer, 2000 (original description)
Pinnularia clevei var. angusta K.Krammer, 2000 (original description)
Pinnularia clevei var. minor (Hustedt) K.Krammer, 2000 accepted as
Pinnularia esox f. minor F.Hustedt, 1914 (new combination reference)
Pinnularia cleveiformis var. ventricosa (Cleve-Euler) K.Krammer, 1992 accepted as
Pinnularia esox var. ventricosa Cleve-Euler, 1932 (new combination reference)
Pinnularia complexa Krammer, 2000 † (original description)
Pinnularia complexa var. minor Krammer, 2000 (original description)
Pinnularia conifera (Brun & Heribaud) Krammer, 2000 † accepted as
Navicula icostauron var. conifera Brun & Héribaud-Joseph, 1893 † (new combination reference)
Pinnularia cruxarea Krammer, 2000 (original description)
Pinnularia decrescens (Grunow) K.Krammer, 2000 (new combination reference)
Pinnularia decrescens var. ignorata K.Krammer, 2000 accepted as
Pinnularia divergens var. ignorata K.Krammer, 1992 (new combination reference)
Pinnularia decrescens var. rhombarea K.Krammer, 2000 (original description)
Pinnularia decrescens var. ventricosa (Hustedt) K.Krammer, 2000 accepted as
Pinnularia krasskei var. ventricosa Hustedt, 1934 (new combination reference)
Pinnularia distinguenda var. obtusa K.Krammer, 2000 † (original description)
Pinnularia divergens var. media Krammer, 2000 (original description)
Pinnularia divergens var. perundulata K.Krammer, 2000 (original description)
Pinnularia divergens var. rhombundulata K.Krammer, 2000 (original description)
Pinnularia divergens var. subbacillaris K.Krammer, 2000 (original description)
Pinnularia divergens var. sublineariformis K.Krammer, 2000 (original description)
Pinnularia divergentissima var. ardnamurchan K.Krammer, 2000 (original description)
Pinnularia divergentissima var. triundulata K.Krammer, 2000 (original description)
Pinnularia diversa var. subcapitata Krammer & Lange-Bertalot, 2000 (original description)
Pinnularia doloma var. fasciata K.Krammer, 2000 (original description)
Pinnularia dubitabilis var. minor K.Krammer, 2000 (original description)
Pinnularia eifeliana (Krammer) Krammer, 2000 † accepted as
Pinnularia esoxiformis var. eifeliana Krammer, 1992 (new combination reference)
Pinnularia episcopalis var. perelliptica K.Krammer, 2000 (original description)
Pinnularia erratica Krammer, 2000 (original description)
Pinnularia erratica var. fossilis Krammer, 2000 † (original description)
Pinnularia esoxiformis var. angustata K. Krammer, 2000 (original description)
Pinnularia ferrophila K.Krammer, 2000 (original description)
Pinnularia fossilis K.Krammer, 2000 † (original description)
Pinnularia frequentis K.Krammer, 2000 (original description)
Pinnularia genkalii K.Krammer & Lange-Bertalot, 2000 (original description)
Pinnularia globiceps var. angustifasciata K.Krammer, 2000 (original description)
Pinnularia globiceps var. linearis Krammer, 2000 (original description)
Pinnularia graciloides var. krasskei Frenguelli, 1942 accepted as
Pinnularia lange-bertalotii K.Krammer, 1992 (additional source)
Pinnularia graciloides var. rumrichae K.Krammer, 2000 (original description)
Pinnularia graciloides var. triundulata (Fontell) Krammer, 2000 accepted as
Pinnularia stomatophora f. triundulata C.W.Fontell, 1917 (new combination reference)
Pinnularia grunowii Krammer, 2000 (original description)
Pinnularia ilkaschoenfelderae K.Krammer, 2000 (original description)
Pinnularia interruptiformis K.Krammer, 2000 (original description)
Pinnularia isselana K.Krammer, 2000 (original description)
Pinnularia ivaloensis K.Krammer, 2000 (original description)
Pinnularia joculata (Manguin) K.Krammer, 2000 accepted as
Pinnularia interrupta var. joculata Manguin, 1952 (new combination reference)
Pinnularia jungii Krammer, 2000 (original description)
Pinnularia kittelii Krammer, 2000 (original description)
Pinnularia latarea Krammer, 2000 (original description)
Pinnularia latarea var. thermophila K.Krammer, 2000 (original description)
Pinnularia lokana Krammer, 2000 † (original description)
Pinnularia lundii var. linearis K.Krammer, 2000 (original description)
Pinnularia magnacuneata K.Krammer, 2000 † (original description)
Pinnularia marchica Ilka Schönfelder, 2000 (original description)
Pinnularia marchica var. subrostrata K.Krammer, 2000 (original description)
Pinnularia mareifelana K.Krammer, 2000 (original description)
Pinnularia mesoleptiformis K.Krammer, 2000 (original description)
Pinnularia metzeltinii K.Krammer, 2000 (original description)
Pinnularia microstauron var. angusta K.Krammer, 2000 (original description)
Pinnularia microstauron var. nonfasciata Krammer, 2000 (original description)
Pinnularia microstauron var. rostrata K.Krammer, 2000 (original description)
Pinnularia minutiformis K.Krammer, 2000 (original description)
Pinnularia moelleri K.Krammer, 2000 (original description)
Pinnularia montgomeryana Krammer, 2000 † (original description)
Pinnularia neglectiformis K.Krammer, 2000 (original description)