Avilionella
Avilionella is a Middle Ordovician tarphyceroid genus consisting of closely coiled, compressed shells with a small perforation in the center, shallow dorsal impression, and subventral tubular siphuncle with thin connecting rings. Chambers are very short, separated by closely spaced, dish-shaped septa. Coiling becomes loose in the mature, adoral, part of the shell.
primaryTopic
Avilionella
Avilionella is a Middle Ordovician tarphyceroid genus consisting of closely coiled, compressed shells with a small perforation in the center, shallow dorsal impression, and subventral tubular siphuncle with thin connecting rings. Chambers are very short, separated by closely spaced, dish-shaped septa. Coiling becomes loose in the mature, adoral, part of the shell.
has abstract
Avilionella is a Middle Ordovi ...... ound the New York and Ontario.
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Wikipage page ID
36,236,140
Wikipage revision ID
702,054,600
fossil range
Middle Ordovician
genus
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hypernym
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Avilionella is a Middle Ordovi ...... re, adoral, part of the shell.
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Avilionella
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Avilionella
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