Manchesteria australis Stull et Rozefelds in Rozefelds, Stull, Hayes & Greenwood

Plant Fossil Names Registry Number: PFN003349

Act LSID: urn:lsid:plantfossilnames.org:act:3349

Authors: G. W. Stull & A. C. Rozefelds

Rank: species

Genus: Manchesteria Rozefelds et Stull in Rozefelds, Stull, Hayes & Greenwood

Reference: Rozefelds, A. C., Stull, G. W., Hayes, P. & Greenwood, D. R. (2021): The fossil record of Icacinaceae in Australia supports long-standing Palaeo-Antarctic rainforest connections in southern high latitudes. – Historical Biology 33(11): 2854–2864.

Page of description: 2857

Illustrations or figures: fig. 2E, F

Name is type for

Types

Original diagnosis/description

Endocarp unilocular, nearly circular in lateral view, with a rounded apex and base. Primary vascular strand entering the locule subapically. Endocarp surface ornamented with narrow, broadly spaced pits, corresponding to broad tubercles protruding shallowly into the locule cavity. Endocarp wall notably thick (ca. 1.4 mm), at least along the dorsoventral margin. Endocarp ca. 21.5 mm in length, ca. 19.6 mm in width

Etymology

The specific epithetic, ‘australis’, Latin for ‘south’ or ‘southern’, was selected to highlight the geographic significance of the fossil material.

Stratigraphy

Paleogene, Eocene
Silcrete floras interpreted to be equivalent to the Eyre Formation (Alley et al. 1999), probably late Palaeocene to middle Eocene in age.

Locality

Austria
Site 2095/032/6 (Greenwood et al. 1990; Greenwood 1996), Poole Creek palaeochannel, 28° 38’S 137° 40ʹE, South Australia.