Macrosemiidae is an extinct family of ginglymodian fish. The family first appeared during the Middle Triassic[1] and disappeared during the Late Cretaceous. The group has been found in rock formations in Africa, Australia, Eurasia and North America.[2] As ginglymodians, their closest living relatives are gars, with them being typically placed as nested within the Semionotiformes.[3] Many members of the family have elongated dorsal fins, often associated with adjacent area of skin which was free of scales. These fins were likely undulated for use in precision swimming. Their body morphology suggests that they were slow swimmers that were capable of maneuvering around complex topography, such as reef environments.[4]
| Macrosemiidae Temporal range:
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|---|---|
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| Various Macrosemiiform fishes, from top to bottom A. Macrosemius rostratus (Germany, Late Jurassic) B. Legnonotus krambergeri (Austria, Late Triassic) C. Propterus elongatus (Germany, Late Jurassic) D. Propterus microstomus (Germany, Late Jurassic)E. Histionotus oberndorferi (Germany, Late Jurassic) F. Notagogus denticulatus (Germany, Late Jurassic) | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Clade: | Ginglymodi |
| Clade: | Neoginglymodi |
| Order: | †Semionotiformes |
| Family: | †Macrosemiidae Thiollière, 1858 |
| Genera | |
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See text | |
| Synonyms | |
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Taxonomy
edit- †Order Macrosemiiformes
- †Family Macrosemiidae, Thiollière, 1858
- Genus †Eosemionotus[3]
- Genus †Agoultichthys[5]
- Genus †Aphanepygus
- Genus †Disticholepis
- Genus †Enchelyolepis
- Genus †Orthurus
- Genus †Petalopteryx
- Genus †Neonotagogus
- Genus †Histionotus
- Genus †Legnonotus
- Genus †Macrosemius
- Genus †Propterus
- Incetae sedis
- Genus †Uarbryichthys[6]
- Genus †Voelklichthys[6]
- †Family Macrosemiidae, Thiollière, 1858
Timeline of genera
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References
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Wikimedia Commons has media related to Macrosemiiformes.
- ^ López-Arbarello, Adriana; Bürgin, Toni; Furrer, Heinz; Stockar, Rudolf (2019-02-27). "Taxonomy and phylogeny of Eosemionotus Stolley, 1920 (Neopterygii: Ginglymodi) from the Middle Triassic of Europe". Palaeontologia Electronica. 22 (1): 1–64. doi:10.26879/904. ISSN 1094-8074.
- ^ "Macrosemiiformes". Palaeos vertebrates. Archived from the original on 29 August 2010. Retrieved 20 August 2009.
- ^ a b López-Arbarello, Adriana; Bürgin, Toni; Furrer, Heinz; Stockar, Rudolf (2019). "Taxonomy and phylogeny of Eosemionotus Stolley, 1920 (Neopterygii: Ginglymodi) from the Middle Triassic of Europe". Palaeontologia Electronica. doi:10.26879/904.
- ^ Cawley, John J.; Marramà, Giuseppe; Carnevale, Giorgio; Villafaña, Jaime A.; López‐Romero, Faviel A.; Kriwet, Jürgen (February 2021). "Rise and fall of †Pycnodontiformes: Diversity, competition and extinction of a successful fish clade". Ecology and Evolution. 11 (4): 1769–1796. doi:10.1002/ece3.7168. ISSN 2045-7758. PMC 7882952. PMID 33614003.
- ^ Murray, A.; Wilson, M.; Gibb, S.; Chatterton, B. (2013-06-27). "Additions to the Late Cretaceous (Cenomanian/Turonian) actinopterygian fauna from the Agoult locality, Akrabou Formation, Morocco, and comments on the palaeoenvironment". Mesozoic Fishes. 5 (21): 525–548. doi:10.1080/02724634.2014.902848.
- ^ a b Arratia, G.; Schultze, H.-P. (2012-01-01). "The macrosemiiform fish companion of the Late Jurassic theropod Juravenator from Schamhaupten, Bavaria, Germany". Fossil Record. 15 (1): 5–25. doi:10.5194/fr-15-5-2012. ISSN 2193-0074.
External links
edit- Sepkoski, Jack (2002). "A compendium of fossil marine animal genera". Bulletins of American Paleontology. 364: 560. Archived from the original on 2009-02-20. Retrieved 2011-05-17.