Cambroernida
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The Cambroernida are a clade of Paleozoic animals with coiled bodies and filamentous tentacles. They include a number of early to middle Paleozoic (Cambrian to Devonian) genera noted as "bizarre" or "orphan" taxa, meaning that their affinities with other animals, living or extinct, have long been uncertain. While initially defined as an "informal stem group," later work with better-preserved fossils has strengthened the argument for Cambroernida as a monophyletic clade.
Wikidata facts
- Instance of
- clade
- Parent taxon
- Ambulacraria
- Image
- Herpetogaster collinsi reconstruction.png
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- Commons category
- Cambroernida
- taxon name
- Cambroernida
via Wikidata · CC0
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Encyclopedic overview
7 sectionsContents
- Description
- Taxonomy and evolution
- Phylogeny
- Internal classification
- History of identification
- References
- Works cited
The Cambroernida are a clade of Paleozoic animals with coiled bodies and filamentous tentacles. They include a number of early to middle Paleozoic (Cambrian to Devonian) genera noted as "bizarre" or "orphan" taxa, meaning that their affinities with other animals, living or extinct, have long been uncertain. While initially defined as an "informal stem group," later work with better-preserved fossils has strengthened the argument for Cambroernida as a monophyletic clade.
==Description== Cambroernids encompass three particular types of enigmatic animals first appearing in the Cambrian: Herpetogaster (the type genus), Phlogites, and the Eldonioidea. They are united by a set of common features including at least one pair of bifurcated or divided oral tentacles, and a large stomach and narrower intestine enclosed together in a clockwise-coiled sac.
Excerpted from Wikipedia’s “Cambroernida” article, available under the CC BY-SA 4.0 licence.