Early Tertiary Macrofossils of Proteaceae from Tasmania

1997 ◽  
Vol 10 (4) ◽  
pp. 533 ◽  
Author(s):  
Raymond J. Carpenter ◽  
Gregory J. Jordan

Proteaceous leaves from two Early Tertiary sites in Tasmania are described and discussed. Based on gross leaf morphological and cuticular characters, 15 species are recognised from Oligocene lacustrine sediments at Cethana. Specimens of two taxa are not distinguishable from the extant species Telopea truncata from Tasmania and Lomatia fraxinifolia from north-eastern Queensland, and are therefore assigned to these species. Two new species of Banksieaephyllum are recognised. Ten other taxa are difficult to identify to existing genera, and are therefore referred to a new genus Proteaciphyllum. They all possess features typical of subfamily Grevilleoideae. Other, less well preserved, but probable Proteaceae from Cethana are also described. Specimens from the Leven River deposit, probably also of Oligocene age, are assigned to a new species of Orites, O. excelsoides. This species is closely related to extant O. excelsa from rainforests of north-eastern New South Wales and north-eastern Queensland. Cethana has by far the highest diversity of Proteaceae of any fossil flora described to date. The fossils also demonstrate the past association of now geographically remote taxa, and the prevalence of sclero- and xero-morphy in the family by the Oligocene.

Brunonia ◽  
1987 ◽  
Vol 10 (2) ◽  
pp. 201
Author(s):  
DJ Boland ◽  
DA Kleinig ◽  
JJ Brophy

A new species, Eucalyptus fusiformis Boland et Kleinig, from the north coast of New South Wales is described. Its taxonomic position is in E. subgenus Symphyomyrtus series Paniculatae following the informal classification of eucalypts proposed by Pryor and Johnson (1971). E. fusiformis is characterised by its flowers, fruits and adult leaves. In the bud the staminal filaments are fully inflected while the androecium has outer staminodes and the anthers are cuboid and adnate. The fruits are narrow, often truncate fusiform, tapering into long slender pedicels. The adult leaves are dull grey, concolorous and hypoamphistomatic. The species resembles the more numerous and often co-occurring ironbark E. siderophloia which has similar adult and seedling leaves. The volatile oils of both species are very similar. The ecology, distribution, taxonomic affinities and conservation status are discussed.


1993 ◽  
Vol 6 (2) ◽  
pp. 91 ◽  
Author(s):  
RJ Carpenter ◽  
AM Buchanan

At least five species in five genera from the Cunoniaceae occur in the Oligocene Cethana deposit. A Callicoma leaf and infructescence are indistinguishable from those of C. serratifolia, the only extant species, and are therefore assigned to that species. Schizonzeria tasmaniensis sp. nov. and Acsmithia grandiflora sp. nov. are represented by flowers and Vesselowskya aff. rubifolia by a leaf or leaflet. Compound leaves of Weinmailrlia/Cunonia so far collected lack cuticular preservation, but their distinctive morphology enables confident placement in this group. Since these genera are only segregable on reproductive features a new genus, Weinmanniaphyllum, is proposed. The fossil data confirm that eastern Australia has been a centre of diversity for the family since at least the Early Tertiary. Modem representatives of the fossil taxa now occur in New South Wales, Queensland, New Guinea, Pacific Islands and South and Central America. None occurs in Tasmania. The evidence is further support for the presence of floristically diverse, microthermal rainforests and disturbed oligotrophic habitats in the Early Tertiary of Tasmania.


Brunonia ◽  
1983 ◽  
Vol 6 (2) ◽  
pp. 251 ◽  
Author(s):  
TG Hartley ◽  
JB Williams

The new species A littoralis T. Hartley & J. Williams, from coastal north-eastern New South Wales, is described and illustrated.


1998 ◽  
Vol 11 (4) ◽  
pp. 439 ◽  
Author(s):  
Anthony J. Vadala ◽  
Andrew N. Drinnan

Leaf fragments from Late Paleocene sediments at Cambalong Creek in the Southern Highlands of New South Wales are assigned to a new species ofBanksieaephyllum Cookson & Duigan,B. praefastigatum. A study of leaf form andmicromorphological characters of extant Banksieae was carried out to identify possible affinities for the new taxon, and a compendium of the architecturaland micromorphological characters of leaves of all described species ofBanksieaephyllum andBanksieaeformis Hill & Christophel is presented.Banksieaephyllum praefastigatum has characteristicstomatal and trichome features of both extinct and extant species ofBanksiinae, but is dissimilar in leaf morphology to any extant species ofBanksia L.f., Dryandra R.Br., orthe oldest previously described species ofBanksieaephyllum, B. tayloriiCarpenter, Hill & Jordan, with which it was contemporaneous.Banksieaephyllum praefastigatum, with its stronglydeveloped areolation and superficial stomates, is different from extantspecies of Banksiinae and Musgraveinae, and may represent a now-extinct sistertaxon to these subtribes in Banksieae, one which had not changed substantiallyfrom hypothesised mesophytic ancestral Proteaceae. Leaf morphology ofB. praefastigatum indicates that serrate-, lobed-andentire-margined forms of Banksieaephyllum were coeval in many localities throughout southern Australia during the Tertiary, and that Banksiinae had diversified significantly by the Early Tertiary, reflecting diversification of at least several other subtribes of subfamily Grevilleoideae by that time.


2007 ◽  
Vol 39 (6) ◽  
pp. 509-517 ◽  
Author(s):  
H. Thorsten LUMBSCH ◽  
Alan W. ARCHER ◽  
John A. ELIX

Abstract:Loxospora lecanoriformis Lumbsch, A. W. Archer & Elix is described from deeply shaded trunks of Doryphora sassafras Endl. in temperate rainforest in north-eastern New South Wales. This species is characterized by large, lecanorine apothecia, mostly unbranched paraphyses, non-amyloid asci and large, thin-walled, simple, ellipsoid ascospores. Molecular data has established that this taxon is related to Loxospora ochrophaea (Tuck.) R. C. Harris.


1995 ◽  
Vol 8 (6) ◽  
pp. 1035 ◽  
Author(s):  
LJ Scriven ◽  
RS Hill

The oldest known Casuarinaceae macrofossils, from late Paleocene sediments at Lake Bungarby in New South Wales, are assigned to a new species of Casuarinaceae, Gymnostoma antiquum. The nearest living relatives of this species are the Papua New Guinean Gymnostoma species and in particular one as yet unnamed species. Previous problems relating to the preparation, identification and description of Casuarinaceae macrofossils are examined and clarified. The ecology of both living Gymnostoma and G. antiquum are discussed. The decrease in catastrophic disturbance and climate seasonality during the Cenozoic were probably major contributing factors leading to the current distribution of Gymnostoma.


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