You can order any of the fossils listed below by clicking here
Lower Permian, Oklahoma
Richards Spur IV
Fossil Rich Matrix
We have several different samples of fossil rich matrix from the Richard's Spur locality currently available for
sale. Each is the residue of dissolving blocks of limestone or clay and each contains abundant vertebrate
remains. The samples are ideal for schools or the private collector but ideally a magnifier or microscope should
be used to sort the material, especially the fine fraction of any sample. All out matrix is only available in limited
quantities and once it is gone, that is it. All the samples came from the Dolese Brothers quarry near Lawton,
Oklahoma.

The material illustrated below represents the most comprehensive collections anywhere on the web. Typically
there are 3 grades of material - coarse, medium and fine. We recommend all is sorted with a microscope but
the coarse material could be done with the naked eye. Medium and fine material definitely require magnification.
Even though some samples may come from the same block the difference in particle size means there can be a
significant differences in the types of fossils and species found between the fine, medium and coarse layers. For
a complete overview of the fauna we suggest samples from all three grades.
The Block
Doleserpeton zone fine - £10/$15
The excellent sample is quite rich in the remains of
Doleserpeton. Predominantly skull plates, jaws are also quite
common as well as other skeletal elements. Other species
can be represented in the sample but it is the highly unusual
concentration of
Doleserpeton remains that makes this
sample so special. Rare and highly recommended.
'Thrausmosaurus' zone coarse - £25/$40
Each of the samples from the Thrausmosaurus zone contains
fragmentary remains of several different forms. There are
the usual skull bones, limb bone sections, vertebrae etc.
Teeth of common species also occur as do occasional micro
jaws. Nice material. The tub shown left is 125ml and is
shown alongside a 1 inch gem jar. We have only 1 jar of this
material.
'Thrausmosaurus' zone fine - £25/$40
Each of the samples from the 'Thrausmosaurus' zone
contains fragmentary remains of several different forms.
There are the usual skull bones, limb bone sections,
vertebrae etc. Teeth of common species also occur as do
occasional micro jaws. Nice material. The tub shown left is
125ml and is shown alongside a 1 inch gem jar.
'Thrausmosaurus' zone medium - £15/$25

Each of the samples from the Thrausmosaurus zone contains
fragmentary remains of several different forms. There are
the usual skull bones, limb bone sections, vertebrae etc.
Teeth of common species also occur as do occasional micro
jaws. Nice material. The glass vial is shown alongside a 1
inch gem jar.
Black Captorhinus fine - £25/$40
Each of the samples from the Black Captorhinus zone
contains fragmentary remains of several different forms but
most material is from
Captorhinus aguti. There are the usual
skull bones, limb bone sections, vertebrae etc. Teeth of
common species also occur as do occasional micro jaws.
Nice material. The tub shown left is 125ml and is shown
alongside a 1 inch gem jar.
Black Captorhinus Coarse - £10/$15

Each of the samples from the Black Captorhinus zone
contains fragmentary remains of several different forms but
most material is from
Captorhinus aguti. There are the usual
skull bones, limb bone sections, vertebrae etc. Teeth of
common species also occur as do occasional micro jaws.
White Captorhins magnus coarse - £12/$20
Each of the samples from the White Captorhinus zone
contains fragmentary remains of several different forms but
most material is from
Captorhinus aguti and Captorhinus
magnus.
There are the usual skull bones, limb bone
sections, vertebrae etc. Teeth of common species also
occur as do occasional jaws sections. Nice material. The tub
shown left is 125ml and is shown alongside a 1 inch gem jar.
Captorhinus zone coarse - £10/$15
This sample is quite rich in the remains of Captorhinus and
Doleserpeton. Predominantly skull plates, jaws are also quite
common as well as other skeletal elements. Other species can
be represented although we cannot guarantee exactly what you
will find but there are jaws and skull elements in every sample.
Captorhinus zone coarse - £50/$80
This sample is quite rich in the remains of Captorhinus and
Doleserpeton. Predominantly skull plates, jaws are also quite
common as well as other skeletal elements. There are
hundreds of bones in this sample. The tub is 125ml volume and
is shown next to a 1 inch gem jar for scale.