Heterolepidotus is an extinct genus of prehistoric marine halecomorph ray-finned fish from the Early Jurassic of Europe.[1][2] It is alternately considered a member of the Ionoscopiformes or Ophiopsiformes.[3][4][5]
| Heterolepidotus Temporal range: | |
|---|---|
 | |
| Specimen of H. latus | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Clade: | Halecomorphi |
| Order: | †Ionoscopiformes |
| Genus: | †Heterolepidotus Egerton, 1872 |
| Species | |
| |
Taxonomy
editThe following species are known:[1][2][6]
- H. latus Egerton, 1872 (type species) - Early Jurassic (Sinemurian to Pliensbachian) of England (Blue Lias & Charmouth Mudstone)
- H. serrulatus (Agassiz, 1843) - Early Jurassic (Hettangian) of England (Blue Lias)
The genus Brachyichthys, used to contain Late Jurassic species, was formerly thought to be a synonym of Heterolepidotus[6], but has been revived by more recent studies.[3][5] Indeterminate records have been made of Heterolepidotus from the Middle Jurassic (Callovian)-aged Kellaways Formation of England, albeit under an older treatment that placed the Late Jurassic species within Heterolepidotus.[7]
Synonyms
editSeveral Triassic and Late Jurassic species previously assigned to Heterolepidotus have since been reassigned to other genera or synonymized with other species:
- Heterolepidotus cephalus (Kner, 1866) → Pholidophorus cephalus Kner, 1866[2]
- Heterolepidotus dorsalis (Agassiz, 1834) → Paralepidotus ornatus (Agassiz, 1834)[8]
- Heterolepidotus grandis Davis, 1885[9] → Osteorachis macrocephalus Egerton, 1868[2][10]
- Heterolepidotus parvulus (Agassiz, 1834) → Paralepidotus ornatus (Agassiz, 1834)[8]
- Heterolepidotus pectoralis (Bellotti, 1857) → Semionotiformes indet.[2]
- Heterolepidotus radio-punctatus (Agassiz, 1844) → Pholidophorus radio-punctatus Agassiz, 1844[2]
- Heterolepidotus serratus (Bellotti, 1857) → Semionotiformes indet[2]
- Heterolepidotus striatus Agassiz, 1837-44 → nomen dubium[2]
- Heterolepidotus typicus (Winkler, 1861) → Brachyichthys typicus (Winkler, 1861)[5]
See also
edit
References
edit- 1 2 Carrano, M. (2013). "Heterolepidotus". The Paleobiology Database.
- 1 2 3 4 5 6 7 8 Machado, Giselle Ribeiro de Paula (2015-03-03). Revisão de Ionoscopiformes (Actinopterygii: Neopterygii) e certos táxons fósseis basais de Halecomorphi: morfologia, taxonomia e relações filogenéticas (Thesis). Universidade do Estado do Rio de Janeiro. Archived from the original on 2023-03-30.
- 1 2 Alvarado-Ortega, Jesús; Espinosa-Arrubarrena, Luis (2008). "A new genus of ionoscopiform fish (Halecomorphi) from the Lower Cretaceous (Albian) lithographic limestones of the Tlayúa Quarry, Puebla, Mexico". Journal of Paleontology. 82 (1): 163–175. doi:10.1666/04-152.1. ISSN 0022-3360.
- ↑ Ebert, Martin (2018-01-02). "Cerinichthys koelblae , gen. et sp. nov., from the Upper Jurassic of Cerin, France, and its phylogenetic setting, leading to a reassessment of the phylogenetic relationships of Halecomorphi (Actinopterygii)". Journal of Vertebrate Paleontology. 38 (1) e1420071. Bibcode:2018JVPal..38E0071E. doi:10.1080/02724634.2017.1420071. ISSN 0272-4634.
- 1 2 3 Ebert, Martin; Etches, Steve (2025-10-01). "New description of Brachyichthys manselii (Egerton, 1872) comb. nov. (Neopterygii: Halecomorphi) from the Upper Jurassic of Kimmeridge, England". Zoological Journal of the Linnean Society. 205 (2). doi:10.1093/zoolinnean/zlaf119. ISSN 0024-4082.
- 1 2 Geology, British Museum (Natural History) Department of; Woodward, Arthur Smith (1895). Catalogue of the Fossil Fishes in the British Museum (Natural History): Actinopterygian Teleostomi of the orders Chondrostei (concluded), Protospondyli, Aetheospondyli, and Isopondyli (in part). order of the Trustees.
- ↑ Brown, David S.; Keen, John A. (1991). "AN EXTENSIVE MARINE VERTEBRATE FAUNA FROM THE KELLAWAYS SAND [CALLOVIAN, MIDDLE JURASSIC] OF LINCOLNSHIRE" (PDF). Mercian Geologist. 12 (2): 87–96.
- 1 2 Hornung, Thomas; Kogan, Ilja; Moosleitner, Gero; Wolf, Gerhard; van der Wielen, Joop (2019-12-01). "The Norian fish deposits of Wiestal („Seefeld Member", Northern Calcareous Alps, Salzburg, Austria) – taxonomy and palaeoenvironmental implications". Austrian Journal of Earth Sciences. 112 (2): 125–165. doi:10.17738/ajes.2019.0008. ISSN 2072-7151.
- ↑ Davis, James W. (1885). "On Heterolepidotus grandis, a Fossil Fish from the Lias". Journal of the Linnean Society of London, Zoology. 18 (107): 293–298. doi:10.1111/j.1096-3642.1885.tb02049b.x.
- ↑ Woodward, Arthur Smith (1895). "II—On the Liassic Fish Osteorachis Macrocephalus". Geological Magazine. 2 (5): 204–206. doi:10.1017/S0016756800121119. ISSN 1469-5081.
External links
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