Cladophlebis carnei W.B.K.Holmes et Ash

Plant Fossil Names Registry Number: PFN000217

Act LSID: urn:lsid:plantfossilnames.org:act:217

Authors: W.B. K. Holmes & S. R. Ash

Rank: species

Reference: Holmes, W.B. K. & Ash, S. R. (1979): An Early Triassic megafossil flora from the Lorne Basin, New South Wales. – Proceedings of the Linnean Society of New South Wales 103(1978)(1): 47–70.

Page of description: 55

Illustrations or figures: fig. 4: 4–5

Types

Original diagnosis/description

Bipinnate leaf; pinnae opposite, linear. Pinnules catadromic; the first pinnule attached in the angle between the miain rachis and the pinna rachis ; the rest of the pinnules opposite or sub-opposite. Pinnules of irregular length, oblong or slightly tapering, obtuse; entire; inserted on pinna rachis at 75°-90°; midrib decurrent, persisting to or almost to the apex. Lateral veins catadromic, alternate to sub -opposite, mostly once divided. The basal lateral veins on either side of the midrib differ in shape from the other lateral veins. The first basiscopic vein is inserted at right angles to the base of the decurrent midvein or directly to the pinna rachis ; dividing once and passing straight or slightly recurved to the margin. The first acroscopic lateral vein is attached close and parallel to the pinna rachis, then decurving to follow parallel around the acroscopic basal lobe of the pinnule. This vein is simple, or if forked, the two branches run close and parallel. The following lateral veins leave the midrib at 20°-30°, dividing once near the midrib into two branches which diverge only slightly and curve to the margin at 45°-60°. The last two pairs of apical lateral veins are usually undivided.

Stratigraphy

Triassic, Lower Triassic
Horizon. Camden Head Claystone, Camden Head Group. Late Early Triassic.

Locality

Australia
1583 in grey siltstone lens at base of sea cliffs on southern side of Camden Head.

loc. 1583 = Camden Head Claystone. In a lens of hard grey siltsone at the base of Camden Head. This is the locality from which Came (1897, 1898) , Voisey (1939) , Pratt (1970) and Retallack (1977) have collected. It is commonly called the Perpendicular Point locality but the original locality descriptions given by these authors indicate that their collections actually came from the base of Camden Head not Perpendicular Point. G. R. 846984.