| Eosemionotus Temporal range:
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|---|---|
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| Eosemionotus sp. fossil | |
Scientific classification 
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| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Clade: | Ginglymodi |
| Order: | †Semionotiformes |
| Family: | †Macrosemiidae |
| Genus: | †Eosemionotus Stolley, 1919 |
| Type species | |
| †Allolepidotus vogeli von Fritsch, 1906
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| Species | |
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See text | |
Eosemionotus ("dawn Semionotus") is an extinct genus of prehistoric marine macrosemiid ray-finned fish from the Middle Triassic (Anisian to Ladinian). It was a speciose genus known from throughout Europe, including formations of the Muschelkalk.[1][2]
The following species are known:[2][3]
- E. ceresiensis Bürgin, 2004 - early Ladinian of Italy (Besano Formation)
- E. diskosomus López-Arbarello et al., 2019 - early Ladinian of Italy (Meride Formation) and Switzerland (Cassina Formation)
- E. minutus López-Arbarello et al., 2019 - early Ladinian of Italy (Meride Formation)
- E. ratumensis Diependaal et al. 2024 - mid-late Anisian of the Netherlands (Vossenveld Formation)[4]
- E. sceltrichensis López-Arbarello et al., 2019 - Ladinian of Switzerland (Meride Formation)
- E. vogeli (von Fritsch, 1906) - late Anisian of Germany (Heilbronn Formation) (=Allolepidotus vogeli von Fritsch, 1906)
In addition, indeterminate remains of Eosemionotus are known from Spain, Slovenia, and China.[2][5]
The Tethys Ocean appears to have been the center of diversification for the genus. The species E. vogeli appears to descend from a population that dispersed from the Tethys into the Germanic Basin prior to the late Anisian.[2]
See also
[edit]
References
[edit]- ^ Sepkoski, Jack (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.
- ^ a b c d [email protected], Adriana López-Arbarello~Ludwig Maximilian; Bü[email protected], Toni; Zü[email protected], Heinz Furrer~Paläontologisches Institut und Museum der Universität; [email protected], Rudolf Stockar~Museo cantonale di storia (2019-02-27). "Taxonomy and phylogeny of Eosemionotus Stolley, 1920 (Neopterygii: Ginglymodi) from the Middle Triassic of Europe". Palaeontologia Electronica. Retrieved 2025-01-21.
- ^ "PBDB Taxon". paleobiodb.org. Retrieved 2025-01-21.
- ^ "Deinsea 22". www.hetnatuurhistorisch.nl. Retrieved 2025-01-21.
- ^ Romano, Carlo; Koot, Martha B.; Kogan, Ilja; Brayard, Arnaud; Minikh, Alla V.; Brinkmann, Winand; Bucher, Hugo; Kriwet, Jürgen (2016). "Permian-Triassic Osteichthyes (bony fishes): diversity dynamics and body size evolution". Biological Reviews. 91 (1): 106–147. doi:10.1111/brv.12161. PMID 25431138. S2CID 5332637.
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