Eusemius
| Eusemius Temporal range: | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Clade: | Halecomorphi |
| Genus: | †Eusemius Vetter, 1881 |
| Species: | †E. beatae |
| Binomial name | |
| †Eusemius beatae Vetter, 1881 | |
Eusemius is an extinct genus of prehistoric marine ray-finned fish, previously described as a macrosemiid, that lived during the Late Jurassic. It contains a single species, E. beatae, from the Tithonian-aged Eichstätt Formation of Germany.[1][2] It is known from a single very small specimen, likely a juvenile, that is likely now lost.[3] It closely resembles the co-occurring Ophiopsis and Ophiopsiella (which are now classified in the Ionoscopiformes), only differing in the non-bifurcated dorsal fin rays.[4][5]
See also
[edit]References
[edit]- 1 2 Sepkoski, Jack (2002). "A compendium of fossil marine animal genera". Bulletins of American Paleontology. 364: 560. Archived from the original on July 23, 2011. Retrieved 2009-02-27.
- ↑ "PBDB Taxon". paleobiodb.org. Retrieved 2025-03-04.
- ↑ Lambers, Paul H. (1999-06-01). "The actinopterygian fish fauna of the Late Kimmeridgian and Early Tithonian 'Plattenkalke' near Solnhofen (Bavaria, Germany): state of the art". Geologie en Mijnbouw. 78 (2): 215–229. doi:10.1023/A:1003855831015. ISSN 1573-9708.
- ↑ Woodward, Arthur Smith (1895). Catalogue of the Fossil Fishes in the British Museum (Natural History). Taylor & Francis.
- ↑ Lane, Jennifer A.; Ebert, Martin (2015-01-02). "A taxonomic reassessment of Ophiopsis (Halecomorphi, Ionoscopiformes), with a revision of Upper Jurassic species from the Solnhofen Archipelago, and a new genus of Ophiopsidae". Journal of Vertebrate Paleontology. 35 (1) e883238. doi:10.1080/02724634.2014.883238. ISSN 0272-4634.
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