Biology:Habeliida

Habeliida is an order of extinct arthropods that existed during the middle Cambrian. It is divided into two families, Habeliidae (monotypic, containing only Habelia), and Sanctacarididae (containing Sanctacaris, Utahcaris and Wisangocaris). They are thought to have been durophagous, with robust gnathobases (spined basal sections of limbs) used to shred hard-shelled organisms. Remains of trilobites have been found as stomach contents in Wisangocaris. Messorocaris has been suggested to be part of the order in some studies, but this is uncertain. They are suggested to be stem-group chelicerates, though they lack the chelicerae present in true chelicerates.

Cladogram after O’Flynn et al, 2023:

Total group Arthropoda

"Gilled lobopodians" (Pambdelurion, Kerygmachela)100px       Opabinia 100px       Radiodonta (e.g Anomalocaris) 100 px   Deuteropoda     Kylinxia 100px     Fengzhengia 100px           Kiisortoqia 100px     Bushizheia 100px         Megacheira 100 px       Habeliida 100px       Mollisonia 100px     Chelicerata (horseshoe crabs, sea spiders, arachnids, etc) 100px               "Great appendage bivalved forms" (Occacaris, Forfexicaris)     Isoxyida 100 px         Artiopoda (including Trilobita) 100 px   Mandibulata   Fuxianhuiida 100 px       Myriapoda (millipedes, centipedes, etc) 100px       Hymenocarina 100px     Pancrustacea (crustaceans, insects, etc)

References

Wikidata ☰ Q124047958 entry