period, part of a spiral cast of a large snail, ~80mm dia., 70mm
tall, the geology of Northwest Frontier Province of Pakistan, where
this came from, is jumbled, with Cambrian zones right next to Tertiary,
Click picture for enlargement.
USA, TEXAS, Bandera Co., Late Cretaceous, c. 70 million BC, fossils:
- TOP: Protocardia sp.
These are clams. Several species. There is little microdetail
on these, but on a few you can see worm markings on the shells.
All are complete bivalves, but some are worn. Size range: 35-200mm!
Grade range: "G-F."
a) small $1.75 b) medium $6.50
c) large $8.50
- 3 O'CLOCK: internal cast
of a gastropod snail. Species difficult to determine. Almost
all have broken tips. Size range: 45-150mm.
Grade range: "G-F."
a) small $2.25 b) medium $8.50
c) large $10.50 d) giant $22.00
- 4 O'CLOCK: Graphaea sp. These were like oysters, but solitary bottom dwellers who did not stick themselves to rocks. The bottom "bowl" side has a curved beak, the "cover" is irregularly flat. All are single shells, mostly bottoms, some with matrix, a few stuck to each other like oysters do. Size range: 40-100mm. Grade: "VF." a) Average $1.75 b) Superior $3.50
- 7 O'CLOCK: Porocystis
globularis. Supposedly a fruiting body of a marine alga.
They used to think they were sponges, Hindia sp. How quickly
they change their minds! Anyway, these look like patterned
marbles, 15-35mm in diameter, pretty much all within the range of
a) small $1.50 b) large $3.50 c) superior specimen, large $6.00
- CENTER MOSTLY: Hemiaster
texana. Popularly called "sea biscuits." They look a lot
like modern sand dollars, but much thicker. On the low end, some
of these are chipped, and some were crushed when they were buried back
then, and thus are intact fossils of crushed hemiasters. All
of them have some micro-detail, which means that you see anatomy up to
about 20x magnification. On the high end, some are absolutely
perfect. Size range: 24-50mm, grade range: "aG-XF."
a) small, low grade $0.50
b) small, medium grade $1.00 c) small, high grade $2.50 d) small, top grade $16.50
e) medium, low $0.75 f) medium, medium $2.00 g) medium, high $4.00 h) medium, top $24.00
i) large, low $1.50 j) large, medium $3.00 k) large, high $6.50 l) large, top $33.00
m) giant, medium $18.00 n) other species, small & medium @ $5.00
Raleigh NC 27611
phone: (919) 787-0881
(8:30AM-10:30PM EST only please)
how to order