| Regulares (Regular)
Probably paraphylletic or polyphylletic group of archaeocyathids with regular shape of the skeleton.
Regulares Vologdin, 1937 | | | | MŠ2478 | Regulares Vologdin, 1937 | | | | MŠ2485 | Regulares Vologdin, 1937 | | | | MŠ2488 | Regulares Vologdin, 1937 | | | | MŠ2717 | Regulares Vologdin, 1937 | | | | MŠ2404 | Regulares Vologdin, 1937 | | | | MŠ2409 | Regulares Vologdin, 1937 | | | | MŠ2413 | Regulares Vologdin, 1937 | | | | MŠ2537 | Regulares Vologdin, 1937 | | | | MŠ2352 | Regulares Vologdin, 1937 | | | | MŠ2347 | Regulares Vologdin, 1937 | | | | MŠ2505 | Regulares Vologdin, 1937 | | | | MŠ2315 | Regulares Vologdin, 1937 | | | | MŠ2446 | Regulares Vologdin, 1937 | | | | MŠ2449 | Regulares Vologdin, 1937 | | | | MŠ2450 | Regulares Vologdin, 1937 | | | | MŠ2451 | Regulares Vologdin, 1937 | | | | MŠ2453 | Regulares Vologdin, 1937 | | | | MŠ2534 | Regulares Vologdin, 1937 | | | | MŠ2524 | Regulares Vologdin, 1937 | | | | MŠ2531 |
|