liik

Oldhamia antiqua Kinhan, 1858

Taksoni kirjeldused

Seilacher et al., 2005

Emended Diagnosis: Oldhamiain which divergingcurved to straight probings display a palm leaf ar-rangement or resemble rays of fireworks. Successiveprobings are separated by narrow strips of unexploredsedimen.

Lindholm & Casey, 1990

Description. A series of two or more semicircular or stellate fans of radiating burrows that connect via a stemlike burrow. Connecting burrow extends from either a central or lateral position to connect at the base of the succeeding fan. Thus, fans line up in either a zigzag or linear, tandemlike fashion. Length of the connecting burrow is variable but generally at least 2-5 mm longer than other burrows. As a result, individual fans are most commonly separated from other fans and do not overlap. However, in some specimens, connecting burrow is the same length or only slightly longe; than other burrows, resulting in some overlap of successive fans. All burrows in a fan converge to a point at the base that is V- or U-shaped.

Sünonüümika

1858 Oldhamia antiqua Forbes, 1849 — Kinhan , lk. 69

1895 Oldhamia (Murchisonites) occidens — Walcott , lk. 314-315, joon. Fig. 1

1904 Oldhamia (Murchisonites) occidens — Dale , lk. 3, joon. Fig. 1

1929 Oldhamia occidens — Ruedemann , lk. 47-55, joon. Fig. 28-29

1942 Oldhamia antiqua Forbes, 1849 — Ruedemann , joon. Figs. 1.2, 1.4, 1.5, 2.1, 2.2, 3.4

1942 Oldhamia smithi — Ruedemann , lk. 10, joon. Fig. 3.5

1962 Oldhamia smithi — Neuman , joon. Fig. 2

1978 Oldhamia antiqua Kinahan, 1858 — Kowalski , lk. 24, joon. Plate I:4-7

1990 Oldhamia kernnesraniensis — El Hassani & Willefert , lk. 234, joon. Fig. 1.1-1.4; 1.7-1.8

1990 Oldhamia flabellata — El Hassani & Willefert , lk. 234, joon. Fig. 1.5-1.6

Klassifikatsioon

organismirühm	Biota
ihnorühm	Ichnofossils
	Bioturbation trace fossils
perekond	Oldhamia
liik	alata
	antiqua
	curvata
	flabellata
	geniculata
	radiata
	recta
	smithi