Samiksha Jaiswal (Editor)

Tentaculites

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Kingdom  Animalia
Scientific name  Tentaculites
Higher classification  Tentaculitidae
Order  Tentaculitida
Family  â€ Tentaculitidae
Phylum  Mollusca (?)
Rank  Genus
Tentaculites muzeumgeologycznaphps250gifampp680
Similar  Molluscs, Cornulites, Microconchida, Conchicolites, Chonetes

Tentaculites is an extinct genus of conical fossils of uncertain affinity, class Tentaculita, although it is not the only member of the class. It is known from Lower Ordovician to Upper Devonian deposits both as calcitic shells with a brachiopod-like microstructure and carbonaceous 'linings'. The "tentaculites" (i.e. tentaculita) are also referred to as the styliolinids.

Contents

Tentaculites Mollusk Fossils From The Ordovician Period

Affinity

Tentaculites Tentaculites

The taxonomic classification of tentaculitids is uncertain, but some group them with pteropods. They may also be related to other conical shells of uncertain affinity including cornulitids, Anticalyptraea, microconchids and trypanoporids. Their shell microstructure has warranted their comparison with the brachiopods and phoronids.

Morphology

Tentaculites What Are Tentaculites General Fossil Discussion The Fossil Forum

Tentaculitids have ribbed, cone-shaped shells which range in length from 5 to 20 mm. Some species septate; their embryonic shell, which is retained, forms a small, sometimes spherical, chamber.

Ecology

Some species are inferred to have been planktonic.

Tentaculites FileTentaculites sp aff gedinnianus Asselberghs 1943jpg
Tentaculites FileTentaculites sp3 DevonicoJPG Wikimedia Commons
Tentaculites FileTentaculites sp4 DevonicoJPG Wikimedia Commons

References

Tentaculites Wikipedia


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