Suprageneric

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Total: 15

non-fossil supragenus valid

Phylum Lycopodiophyta D.H. Scott Stud. Foss. Bot. 13, 500–501. 7 Sep 1900

non-fossil supragenus valid

Phylum Equisetophyta D.H. Scott Stud. Foss. Bot. 13, 489, 492–493. 7 Sep 1900

supragenus valid

Class Cycadeoideopsida D.H. Scott Stud. Foss. Bot. ed. 3, 2: 320. 28 Jun 1923

supragenus valid

Family Cheirostrobaceae D.H. Scott Encyclop. Brit. ed. 9, 7(New): 413. 21 Nov 1902

supragenus valid

Family Calamopityaceae D.H. Scott Stud. Foss. Bot. ed. 2, 2: 476–477, 482. 16 Jun 1909

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