Heterolepidotus

Heterolepidotus
Specimen of H. latus
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Clade: Halecomorphi
Order: †Ionoscopiformes
Genus: †Heterolepidotus
Egerton, 1872
Species
  • H. latus Egerton, 1872
  • H. serrulatus (Agassiz, 1843)

Heterolepidotus is an extinct genus of prehistoric marine halecomorph ray-finned fish from the Early Jurassic of Europe. It is alternately considered a member of the Ionoscopiformes or Ophiopsiformes.

Taxonomy

The following species are known:

The genus Brachyichthys, used to contain Late Jurassic species, was formerly thought to be a synonym of Heterolepidotus, but has been revived by more recent studies. 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.

Synonyms

Several 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
  • Heterolepidotus dorsalis (Agassiz, 1834) → Paralepidotus ornatus (Agassiz, 1834)
  • Heterolepidotus grandis Davis, 1885 → Osteorachis macrocephalus Egerton, 1868
  • Heterolepidotus parvulus (Agassiz, 1834) → Paralepidotus ornatus (Agassiz, 1834)
  • Heterolepidotus pectoralis (Bellotti, 1857) → Semionotiformes indet.
  • Heterolepidotus radio-punctatus (Agassiz, 1844) → Pholidophorus radio-punctatus Agassiz, 1844
  • Heterolepidotus serratus (Bellotti, 1857) → Semionotiformes indet
  • Heterolepidotus striatus Agassiz, 1837-44 → nomen dubium
  • Heterolepidotus typicus (Winkler, 1861) → Brachyichthys typicus (Winkler, 1861)

See also

References

  1. 1 2 Carrano, M. (2013). "Heterolepidotus". The Paleobiology Database.
  2. 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.
  3. 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.
  4. ↑ 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.
  5. 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.
  6. 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.
  7. ↑ 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.
  8. 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.
  9. ↑ 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.
  10. ↑ Woodward, Arthur Smith (1895). "II—On the Liassic Fish Osteorachis Macrocephalus". Geological Magazine. 2 (5): 204–206. doi:10.1017/S0016756800121119. ISSN 1469-5081.