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Paleozoic Fossil Gallery - Bryozoa (Moss Animals)
Bryozoa, Stenolaemata
(Phylum, Class)
Red text = needs information
Fossil identification by Jo Cox unless otherwise noted
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Bryozoans are very small, colonial animals. In mass, they combine to form mats, mounds, branches, fans, or lacy fronds. Tentacles surrounding their mouths grabbed microscopic organisms floating in the water. These animals differ from coral in that they lived in pits on the surface of the structure and not in radiating partitioned cups. |
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Cryptostomata
(Order)
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Megacanthopora sp. Period: Graham formation, upper Pennsylvania Location: Young County, Texas Collection: Abilene Christian University Natural History Collection Size: ? mm long |
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Note: purchased specimen |
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Rhombopora lepidodendroidea Period: Pennsylvania Location: north of Cisco, Texas Collection: Jo Cox Size: 15 mm long |
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Stictoporella sp. Period: ? Location: ? Collection: Jo Cox Size: 15 mm long (right) |
2 specimens |
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Cystoporata
(Order)
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Fistulipora carbonaria Period: Pennsylvania Location: north of Cisco, Texas Collection: Jo Cox Size: 30 mm long |
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Prismopora serrata Period: Lester layer, middle Pennsylvanian Location: Overbrook, Oklahoma Collection: Abilene Christian University Natural History Collection Size: ? mm long |
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Note: purchased specimen |
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Fenestrata
(Order)
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Archimedes sp. Period: ? Location: ? Collection: Hardin-Simmons University Size: 23 mm long (middle) |
3 specimen |
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Acanthocladia sp. Period: Pennsylvania Location: north of Cisco, Texas Collection: Jo Cox Size: 10 mm long |
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Fenestella sp. Period: Pennsylvania Location: north of Cisco, Texas Collection: Jo Cox Size: 25 mm long |
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Description: This is the most common sheet Bryozoa. |
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Penniretepora conferta Period: Word layer, Permian Location: Hess Canyon, Texas Collection: Abilene Christian University Natural History Collection Size: ? mm long |
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Note: purchased specimen |
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Pinnatopora sp. Period: Pennsylvania Location: north of Cisco, Texas Collection: Jo Cox Size: 8 mm long |
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Polypora submarginata Period: Pennsylvania Location: north of Cisco, Texas Collection: Jo Cox Size: 28 mm long |
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Description: looks like fine lace fan |
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Trepostomata
(Order)
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Stenopora sp. Period: Graham formation, upper Pennsylvania Location: Wise County, Texas Collection: Abilene Christian University Natural History Collection Size: ? mm long |
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Note: purchased specimen |
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Tabulipora urei Period: Pennsylvania Location: north of Cisco, Texas Collection: Jo Cox Size: 16 mm long |
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These specimens may be miss labeled. They look more like Brazoins.
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Phylum Porifera Class Demospongea Order Epipolasida Family Heliospongiidae Coelocladia spinosa Period: Pennsylvanian Location: Bridgeport, Texas Collection: Hardin-Simmons University Size: 25 mm long (left) |
2 specimen |
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Note: purchased specimen |
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