liik
Oldhamia geniculata Seilacher, Buatois et Mángano, 2005
Taksoni kirjeldused
Seilacher et al., 2005
Diagnosis: Relatively large ichnospecies ofOldha-mia, in which probings radiate in a centrifugal se-quence and turn the tips back 1808on the free side tofill the sectors in between, forming a hook-like struc-ture. Instead of a fixed point of central branching,there is a curved spreite-like structure in the center.
Description: Relatively large systems oriented parallelto the bedding plane, in which branches radiate in acentrifugal sequence and turn the tips back 1808on thefree side. A curved spreite-like structure in the centeroccurs rather than a fixed point of branching.
Sünonüümika
2005     Oldhamia geniculata isp. n. — Seilacher et al. , lk. 344, joon. Fig. 12D, 18
Klassifikatsioon
| organismirühm | Biota | 
| ihnorühm | Ichnofossils | 
| Bioturbation trace fossils | |
| perekond | Oldhamia | 
| liik | alata | 
| antiqua | |
| curvata | |
| flabellata | |
| geniculata | |
| radiata | |
| recta | |
| smithi |