Biology:Ionoscopus
Ionoscopus is an extinct genus of marine halecomorph ray-finned fish from the Late Jurassic to Early Cretaceous of Europe.[1] It is the type genus of the order Ionoscopiformes, a diverse group of halecomorph fish from the Mesozoic that were distantly related to the modern bowfin.[2][3]
The following species are known:[2]
- ?I. analibrevis Stuetzer, 1972 - Late Jurassic (Tithonian) of Germany (Solnhofen Formation)
- I. desori (Thiollière, 1858) - Late Jurassic (Kimmeridgian) of France (Cerin Lagerstätte)
- ?I. muensteri (Giebel, 1848) - Tithonian of Germany (Solnhofen Formation)
- I. petrarojae Costa, 1853 (type species) - Early Cretaceous (Albian) of Italy (Pietraroja Plattenkalk)
- ?I. striatissimus (Münster, 1842) - Tithonian of Germany (Solnhofen Formation)
In a 2016 review, both I. desori and I. petrarojae were identified as the only definitively valid members of the genus. Three other German species were found to have remains too poorly-preserved or less-studied to allow for a proper taxonomic assignment. 'I.' cyprinoides (Wagner, 1863), a well-known species from the Late Jurassic of Germany, was found to be morphologically distinct from Ionoscopus and warrant reclassification into its own genus.[2]
The closest relative of Ionoscopus is thought to be Quetzalichthys from the Early Cretaceous of Mexico.[4][5]
References
- ↑ Sepkoski, Jack (2002). "A compendium of fossil marine animal genera". Bulletins of American Paleontology 364: 560. Archived from the original on 2011-07-23. https://web.archive.org/web/20110723131237/http://strata.ummp.lsa.umich.edu/jack/showgenera.php?taxon=611&rank=class. Retrieved 2009-02-27.
- ↑ 2.0 2.1 2.2 Taverne, Louis Paul; Capasso, Luigi (2016-11-25). "Revision of ionoscopus petrarojae (ionoscopiformes, osteichthyes) from the albian of Pietraroja (Campania, southern Italy)" (in it). Thalassia Salentina: 65–80. doi:10.1285/i15910725v38p65. ISSN 1591-0725. https://ese-journals.unisalento.it/index.php/thalassiasal/article/view/16539.
- ↑ "PBDB" (in en). https://paleobiodb.org/classic/basicTaxonInfo?taxon_no=440308.
- ↑ "Panxianichthys imparilis gen. et sp. nov., a new ionoscopiform (Halecomorphi) from the Middle Triassic of Guizhou, China" (in en). Vertebrata Palasiatica 53 (1). 2015-03-15. ISSN 2096-9899. https://www.vertpala.ac.cn/EN/Y2015/V53/I1/1.
- ↑ 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" (in en). Journal of Paleontology 82 (1): 163–175. doi:10.1666/04-152.1. ISSN 0022-3360. https://www.cambridge.org/core/journals/journal-of-paleontology/article/abs/new-genus-of-ionoscopiform-fish-halecomorphi-from-the-lower-cretaceous-albian-lithographic-limestones-of-the-tlayua-quarry-puebla-mexico/2B0A94C1688DF9D073BD300D978A58DD.
Template:Halecomorphi Wikidata ☰ Q6063756 entry
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