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CCDB → Bryophytes → Plagiotheciaceae → Isopterygium
| Taxon name | Status | Median (n) |
| Isopterygium albescens (Hook.) A. Jaeger | Accepted | 11 |
| Isopterygium distichaceum (Mitt.) A. Jaeger | Accepted | 11 |
| Isopterygium lignicola (Mitt.) A. Jaeger | Accepted | 12 |
| Isopterygium minutirameum (M. Hal.) A. Jaeger | Accepted | 10 |
| Isopterygium pallidulum (Mitt.) A. Jaeger | Accepted | 12 |
| Isopterygium serrulatum M. Fleisch. | Accepted | 22 |
| Isopterygium tenerum (Sw.) Mitt. | Accepted | 12 |
| Isopterygium seligeri (Brid.) Dixon | Synonym of Herzogiella seligeri (Brid.) Z. Iwats. | 10 |
| Isopterygium pohliaecarpum | Synonym of Isopterygium pohliaecarpum (Sull. & Lesq.) A. Jaeger | 11 |
| Isopterygium pulchellum (Hedw.) A. Jaeger | Synonym of Isopterygiopsis pulchella (Hedw.) Z. Iwats. | 11 |
| Isopterygium elegans (Brid.) Lindb. | Synonym of Pseudotaxiphyllum elegans (Brid.) Z. Iwats. | 11 |