liik
Didymaulichnus alternatus Pickerill, Ronano et Melendez, 1984
Taksoni kirjeldused
Pickerill et al., 1984b
Diagnosis.: Smooth, straight, gently curved to slightly sinuous Didymulichnus burrows composed of alternating deep and less deeply impressed sections giving the burrow a step-wise or castellate longitudinal section.
Sünonüümika
1984     Didymaulichnus alternatus n. sp. — Pickerill et al. , lk. 260, joon. 4a-c 
Klassifikatsioon
| organismirühm | Biota | 
| ihnorühm | Ichnofossils | 
| Bioturbation trace fossils | |
| perekond | Didymaulichnus | 
| liik | alternatus | 
| lyelli | |
| meanderiformis | |
| miettensis | |
| nankervisi | |
| nerodenkoi | |
| tirasensis |