fossil wood: Australia
museum quality specimens
AUSTRALIA: Note: the fossil woods from Queensland are all wood that fossilized and then broke apart, were carried by water and river-smoothed before being finally deposited in Jurassic formations in Queensland. As a result, the outsides are smooth and often more worn away on one side than the other. Many are found as large boulders but some as smaller river-smoothed elongated logs and sticks. They frequently come from agricultural fields where farmers plowed these annoying rocks out of the way before they figured out what they were. Now they are scarce, having been diligently hunted for decades.

New information concerning formerly know as Pentoxylon. May 1, 2013:

The new genus, Donponoxylon consists of two species: D. bennettii and D. jacksoniiDonponoxylon bennettii is diagnosed by atypical secondary growth with continuous or discontinuous concentric outer vascular rings, and by a generally irregular arrangement of vascular segments around the pith. Donponoxylon jacksonii differs from D. bennettii in having the vascular segments regularly arranged around the pith and the absence of the outer vascular rings. 

FJD Aussie 17. Museum Specimen Conifer/Shipworm wood. Windalia Radiolarite fm, Lower Cretaceous, Kennedy Ranges, Western Australia, Australia. Full round, contour polished on one end and otherwise all natural. First the wood sank into salt water, next it was invaded by tunneling mollusks (i.e. teredo) resulting in tunnels then it fossilized, the tunnels infilled with silicas, and who knows what else happened before it returned close enough to the earth’s surface to be dug up by a tanned, muscular Aussie with a rock hammer. The lighter colored rock is also part of the original tree and has growth rings throughout. The dots are the shipworm tunnels. Much interest. No glue - no filler. 10 by 11 cm mirror-polished face; 21 cm long; eleven pounds and ten ounces.  $750

FJD Aussie 2. Museum Specimen from my collection. Donponoxylon bennettii – a Jurassic specimen of a rare, extinct gymnosperm from Queensland, Australia. The part of my brain that comes up with superlatives is over-taxed – after collecting wood for decades — buying and selling hundreds of specimens (probably more than a thousand), traveling tens of thousands of miles, spending months away from home seeking out the best of the best – what I have in this collection really is that good. This one is supercalifragilisticexpialidocious. Take a look at page 145 of Petrified Wood. It looks like the mirror image of this one (although the picture in the book is too red). This is the other half. It is a museum specimen that would be comfortable in any Natural History museum. The stratigraphic layer that includes pentoxylon also holds fossil coniferous wood and fern. All of it traveled on one or more  rough journeys many millions of years ago, carried by ice, water, seismic activity, landslides, astronomic actions, and whatever, resulting in a tumbled river cobble effect with a smooth and somewhat colorful exterior. 23 by 19 cm mirror-polished face; up to 58 mm thick; six pounds and eight ounces.  $5000


FJD Aussie 1. Museum Specimen from my collection. Donponoxylon bennettii – a Jurassic specimen of a rare, extinct gymnosperm from Queensland. An absolutely perfect full round slice with the classic patterns and colors and not a single fracture – no glue, no fillers. Excellent cell structures. 19 by 15 cm mirror-polished face; 1 cm thick; one pound and three ounces.  $950

Aussie 10. Museum specimen Pentoxylon. Queensland, Jurassic. The classic wave pattern in an oblong shape in coffee-tan with bits of gold and red spread around. Overall pleasing mineralization and pattern. The quality of the mineralization is like fine China with no fractures. Super high end. Specimen round slice. 23 by 8 cm mirror-polished face; 1 cm thick; thirteen ounces.  $100

Aussie 12. Museum specimen Araucaria. Jurassic, Queensland. 3.5 by 7 cm mirror-polished face; up to 40 mm thick; six ounces.  $45

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