Stromatolites and
Sponges
You can order any of the fossils listed below by clicking here
This page is dedicated to stromatolites and sponges varying age from the Palaeoproterozoic, all
the way up to the Pleistocene. Both polished slices and thin sections are available.

All of our thin sections are prepared on 1x3 inch glass slides and the section is thin enough for the
internal details to be observed. We do not put cover slips over the specimens in case buyers wish
to rework the slides. The slides can be viewed with both transmitted and reflected light.
Sponges
Silurian of Tennessee Sponge thin section collection - £25/$35
These collections are all similar to that shown above. Each consists of 5 thin sections
representing a different species. Pore and canals are all visible as are some of the
spicules. A great reference collection. Brownsport Formation of central Tennessee.
Silurian of Tennessee
Astylospongia - £4/$6
Specimens measure
~1 inch wide.
Cut sponges
The following specimens have been cut in half and polished. In each instance you get both
halves of the sponge
, even though only one is shown in the image. Images are of typical
specimens.
Hindia - £4/$6
Specimens measure
~1 inch wide.
Chiastoclonella - £4/$6
Specimens measure
~1 inch wide.
Carpospongia - £4/$6
Specimens measure
~1 inch wide.
Caryospongia - £4/$6
Specimens measure
~1 inch wide.
Stromatolites
The following specimens are all thin section of stromatolites. They show the banding (laminae) of
each form to good effect. Images show typical specimens.

All of our thin sections are prepared on 1x3 inch glass slides and the section is thin enough for the
internal details to be observed. We do not put cover slips over the specimens in case buyers wish
to rework the slides. The slides can be viewed with both transmitted and reflected light.
Orkney Conophyton thin section - £6/$10
Devonian, Orkney, Scotland.
Baicailia thin section pair - £12/$20
A vertical and horizontal section
from the Mesoproterozoic of China.
Collenia symmetrica thin section - £6/$10
Mesoproterozoic, Montana
Collonella sp. thin section - £6/$10
Lower Cambrian, Oklahoma
Cyanobacterial oncoids thin section - £8/$12
Permian, New Mexico
Green River Stromatolite thin section - £6/$10
Eocene, Wyoming
Green River Stromatolite thin section - £6/$10
Eocene, Wyoming
Stromatolite thin section collection - £50/$80
10 different thin sections, 9 of which are stromatolites,
the other a section of marine shell bed. The image left
shows typical specimens but the species are identical to
those you will receive. Specimens are included from the
Paleo and Mesoproterozoic, Cambrian, Devonian,
Triassic, Eocene, Palaeocene and Cretaceous. The
collection shows a wide variety of forms and colours.
Ozarkcollenia thin section - £6/$10
Palaeoproterozoic, Missouri
Thin sections of all of the above species of sponge are also available and are
priced at £6/$10 each (see below):
More stromatolite slices to follow shortly
Carpospongia
Caryospongia
Chiastoclonella
Astylospongia
Hindia
Stromatolite Survey collection - £40/$65
12 different slices of stromatolite. The labels measure ~2 inches wide. There is a wide variety of forms
in this collection from localitites around the world. You can see from the labels the exact details.
Includes some truly mysterious specimens that have so far defied any conclusive explanation other
than organic activity (e.g. Australian Zebra stone and
Kinneyia simulans). A neat collection housed in
a plastic box with lid as shown.