Английская Википедия:Hederellid
Шаблон:Short description Шаблон:Automatic taxobox
Hederellids are extinct colonial animals with calcitic tubular branching exoskeletons. They range from the Silurian to the Permian and were most common in the Devonian period. They are more properly known as hederelloids because they were originally defined as a suborder by Bassler, who described about 130 species.[1] Although they have traditionally been considered bryozoans, they are clearly not because of their branching patterns, lack of an astogenetic gradient, skeletal microstructure, and wide range in tube diameters.[2] Work continues on assessing the true affinities of hederelloids, but they appear to be most closely related to phoronids and other lophophorates.[3][4]
Classification
- Family Hederellidae
- Genus Diversipora
- Genus Hederella
- Family Reptariidae
- Genus Cystoporella
- Genus Hederopsis
- Genus Hernodia
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Hederelloids encrusting a brachiopod from the Devonian of Ohio
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SEM image of a hederelloid from the Devonian of Michigan (largest tube diameter is 0.75 mm)
References
Further reading
Шаблон:Silurian-animal-stub
Шаблон:Devonian-animal-stub
Шаблон:Carboniferous-animal-stub
Шаблон:Permian-animal-stub
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- Английская Википедия
- Enigmatic animal taxa
- Carboniferous invertebrates
- Devonian animals
- Late Devonian animals
- Permian animals
- Permian extinctions
- Enigmatic protostome taxa
- Silurian animals
- Silurian first appearances
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- Википедия
- Статья из Википедии
- Статья из Английской Википедии
