Cornulitida Temporal range:
| |
---|---|
Cornulitid on a brachiopod valve (Upper Ordovician, SE Indiana) | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Class: | † Tentaculita |
Order: | †
Cornulitida Boucek, 1964 |
Genera | |
Cornulitida is an extinct order of encrusting animals from class Tentaculita, which were common around the globe in the Ordovician to Devonian oceans, and survived until the Carboniferous. [1] [2] [3] Organisms that may be the oldest cornulitids have been found in Cambrian sediments of Jordan. [4]
Cornulitids had shells, and were subject to predation by boring and other means from the Ordovician onwards. Many survived attacks by predators. [1] Several cornulitids were endobiotic symbionts in the stromatoporoids and tabulates. [5] [6] [7]
Their affinity is unknown; they have been placed in many phyla, and have been considered worms, corals, molluscs and more. [1] They appear to be closely related to other taxa of uncertain affinity, including the microconchids, trypanoporids and tentaculitids. [1]
Cornulitida Temporal range:
| |
---|---|
Cornulitid on a brachiopod valve (Upper Ordovician, SE Indiana) | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Class: | † Tentaculita |
Order: | †
Cornulitida Boucek, 1964 |
Genera | |
Cornulitida is an extinct order of encrusting animals from class Tentaculita, which were common around the globe in the Ordovician to Devonian oceans, and survived until the Carboniferous. [1] [2] [3] Organisms that may be the oldest cornulitids have been found in Cambrian sediments of Jordan. [4]
Cornulitids had shells, and were subject to predation by boring and other means from the Ordovician onwards. Many survived attacks by predators. [1] Several cornulitids were endobiotic symbionts in the stromatoporoids and tabulates. [5] [6] [7]
Their affinity is unknown; they have been placed in many phyla, and have been considered worms, corals, molluscs and more. [1] They appear to be closely related to other taxa of uncertain affinity, including the microconchids, trypanoporids and tentaculitids. [1]