Harpetida
Sign in to saveHarpetida is one of the eleven orders of the extinct arthropod class Trilobita. The first harpetid trilobites appear in the Upper Cambrian, and the last species die out in the late Devonian period.
In the Vinony graph
Within Vinony's link graph, Harpetida is referenced by 35 other articles, and connects out to Trilobita, cephalon and Morocco.
It sits within the topics Cambrian first appearances, Harpetida and Late Devonian animals.
Its subject is documented across 8 Wikipedia language editions.
Wikidata facts
- Parent taxon
- Trilobita
- Image
- Harpetidae species trilobite.jpg
Show 5 more facts
- taxon name
- Harpetida
- taxon rank
- order
- Commons category
- Harpetida
- temporal range start
- Furongian
- temporal range end
- Late Devonian
Sources (1)
via Wikidata · CC0
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Encyclopedic overview
3 sectionsContents
- Families and genera
- References
- External links
Harpetida is one of the eleven orders of the extinct arthropod class Trilobita. The first harpetid trilobites appear in the Upper Cambrian, and the last species die out in the late Devonian period.
Harpetid trilobites are characterized among trilobites by bearing a comparatively large, semicircular brim around the cephalon (head) which is often perforated by small pores. This brim is thought to serve as a filter-feeding apparatus. The brim stretches backward on either side of the cephalon (head) and typically has a pronounced suture along the outside.
Excerpted from Wikipedia’s “Harpetida” article, available under the CC BY-SA 4.0 licence.