Cnidarian Fossils: Septastrea, Horn Coral, Hexagonaria, Favosites, Sun Coral

Fascinating facts about Cnidarians: * Hard corals consist of white skeletons composed of limestone, or calcium carbonate.
* Corals have simple body structures in which food passes in and out of a stomach-like sac through a single opening.
* Earth's first coral reefs started to form about 500 million years ago.
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QUALITY RATINGS: (6 = Outstanding) * (5 = Excellent) * (4 = Very Good) * (3 = Good) * (2 = Fair) * (1 = Field Quality)
Product #
Name / Species
Description
Quality Rating
             Price        
       Image
CNI00001                       Heliophylum                  Large Specimen; Detailed            4                                  $4.95                                                                                              A horn coral
                                                                                      Devonian; Arkona, Ontario
CNI00002
Septastrea
Scleractinian coral.
~ 1" x 1.5" in length.
5
$3.00
CNI00003
Heliophylum
A Horn Coral:
​Grewingkia canadensis, sp.
3
$2.95
CNI000004
Scleractinian Coral
Solenastrea hyades, sp.
​Pleistocene.
4
$2.00
CNI000005
Grewingkia
canadensis,sp
A horn coral
2
$2.00
CNI000006
Phillipsastrea sp.
Hexagonal Coral
Near perfect!
6
$8.00
CNI000007
Heliophylum
Predominantly Devonian
2
$1.50
CNI000008
Phillipsastrea sp
Hexagonal Coral  Exceptional quality. Large.
6
$12.00
CNI000009
Horn Coral
Surface features exceptional!
4
$2.50
CNI000010
Favosite Coral
Favosite forbsei, sp.
~1.5" in diameter.
2
$2.00
CNI000011
Horn Coral
Nice surface features.
~ 1" in length.
3
$1.00
CNI000012
Sun Coral
Devonian
​Nice surface features.
~ 2.0" - 2.5" in diameter.
3
$2.00
CNI000013
Horn Coral
Surface features are distinguishable. ~ 2.0" - 2.5" in length.
3
$2.50
CNI000015
Sun Coral
A Devonian coral.
~ 2/5" in diameter.
2
$1.00
CNI000016
Favosite forbosi, sp
Favosite.
~ 1.0" - 1.5" in diameter
4
$1.00
CNI000017
Favosite
Middle Silurian.
​Spherical
~ 2.0" - 2.5" in diameter
4
$2.50
CNI000018
Hexagonaria
​Spherical shape
~ 1.0" diameter.
2
$1.00
CNI00019                   Heliospongia                  Sponge, Small.                                  5                                 $4.00
​                                       ramosa, sp                       Pennsylvanian