Species
Oldhamia radiata Kinhan, 1858
Taxon description
Emended Diagnosis: Oldhamiawith probings thatbranch and radiate to all sides from a central pointin aChondrites-like fashion, but except fromthe central area they all remain in a single beddingplane.
Lindholm & Casey, 1990
Description. A radial arrangement of burrows meeting in an 0-shaped point. The burrows form either a bilaterally symmetrical or, more rarely, a continuous radial pattern. When continuous, burrows are commonly irregular in spacing and characteristically have zones where the burrows are shorter, less numerous, and poorly defined. Bilaterally symmetrical forms characterized by smooth burrows (30-45 in number) of uniform length and spacing. Individual burrows range from 3 to 8 mrn in length and the trace ranges from 0.8 to 2cm in diameter.
Synonymy list
1858 Oldhamia radiata Forbes, 1849 — Kinhan , pp. 61
1942 Oldhamia radiata Forbes, 1849 — Ruedemann , fig. Fig. 2.4; 3.3; 3.3
1974 Oldhamia radiata Forbes, 1849 — Dhonau and Holland , fig. Pl. 4A
1982 Oldhamia radiata Forbes, 1849 — Aceñolaza & Durand , fig. Pl. 1:1,2,5,6, 7,9
1990 Oldhamia radiata Forbes, 1849 — Lindholm & Casey , pp. 1273 , fig. Figs. 7A, 7B
2005 Oldhamia radiata Kinmhan, 1851 — Seilacher et al. , pp. 346
Classification
| Organism group | Biota |
| Ichnofossil group | Ichnofossils |
| Soft-sediment trace fossils | |
| Genus | Oldhamia |
| Species | alata |
| antiqua | |
| curvata | |
| flabellata | |
| geniculata | |
| radiata | |
| recta | |
| smithi |