Ichthyokentema
| Ichthyokentema Temporal range: | |
|---|---|
 | |
| Life restoration of I. purbeckensis | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Division: | Teleostei |
| Family: | †Ichthyokentemidae |
| Genus: | †Ichthyokentema Woodward, 1941 |
| Species: | †I. purbeckensis |
| Binomial name | |
| †Ichthyokentema purbeckensis (Davies, 1887) | |
| Synonyms | |
|
Pholidophorus purbeckensis Davies, 1887 | |
Ichthyokentema ("fish-goad") is an extinct genus of freshwater stem-teleost fish known from the earliest Cretaceous. It contains one species, I. purbeckensis, which is known from the Berriasian-aged Lulworth Formation[1][2] in the Purbeck Group of Dorset, England.[3][4] I. purbeckensis was originally described as a species of Pholidophorus by William Davies in 1887,[5] but was moved to its own genus by Arthur Smith Woodward in 1941.[3]
It is the only known member of the family Ichthyokentemidae, which was previously placed in the now-paraphyletic order Pholidophoriformes. More recent studies suggest that Ichthyokentema represents a relatively basal teleost lineage. Some studies have found it to be the secondmost basal lineage, second only to Pleuropholidae, while others have found it to be related to the Ankylophoridae.[6][7]
See also
References
- ↑ "PBDB Taxon". paleobiodb.org. Archived from the original on 2025-03-24. Retrieved 2026-07-08.
- ↑ Butt, Raheem; Edgar, Kirsty M.; Maidment, Susannah C. R.; Meade, Luke E.; Reedman, Christopher; Butler, Richard J. (2026-05-29). "A comprehensive review of the tetrapod fauna of the Purbeck Limestone Group (Tithonian–Berriasian) of Dorset, southern England". Journal of the Geological Society. 183 (4): jgs2025–232. doi:10.1144/jgs2025-232. ISSN 0016-7649.
- 1 2 Woodward, A. S. (1941). "VIII.— The Mesozoic Ganoid Fishes of the Genus Pholidophorus Agassiz". Annals and Magazine of Natural History. 8 (44): 88–91. doi:10.1080/03745481.1941.9727955.
- ↑ Sepkoski, J. (2002). "A compendium of fossil marine animal genera". Bulletins of American Paleontology. 364: 560. Archived from the original on 2011-07-23. Retrieved 2009-02-27.
- ↑ Davies, W. (1887). "I.—On New Species of Pholidophorus from the Purbeck Beds of Dorsetshire". Geological Magazine. 4 (8): 337–339. Bibcode:1887GeoM....4..337D. doi:10.1017/S0016756800193914. S2CID 129013028.
- ↑ Arratia, Gloria (2013-11-01). "Morphology, taxonomy, and phylogeny of Triassic pholidophorid fishes (Actinopterygii, Teleostei)". Journal of Vertebrate Paleontology. 33 (sup1): 1–138. doi:10.1080/02724634.2013.835642. ISSN 0272-4634.
- ↑ "New Triassic teleosts (Actinopterygii, Teleosteomorpha) from northern Italy and their phylogenetic relationships among the most basal teleosts". Journal of Vertebrate Paleontology. 37 (2) e1312690. 2017-03-04. doi:10.1080/02724634.2017.1312690. ISSN 0272-4634.
