Hemirhabdorhynchus
| Hemirhabdorhynchus Temporal range: | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Division: | Teleostei |
| Order: | Carangiformes |
| Superfamily: | Xiphioidea |
| Genus: | †Hemirhabdorhynchus Casier, 1946 |
| Species | |
| |
Hemirhabdorhynchus is an extinct genus of prehistoric marine ray-finned fish, presumed to be an early billfish, that lived from the early to middle Eocene of Europe & Africa.[1] It is known only from fragmentary remains of rostra, and thus its exact taxonomic position is uncertain.[2] Under some previous taxonomic treatments, it was considered an ancestor of the modern Tetrapturus.[3]
The following species are known:[3]
- H. brevirostris Dartevelle & Casier, 1949 - Middle Eocene (early Lutetian) of Angola[4]
- H. depressus Casier, 1946 - Early Eocene of Belgium
- H. ypresiensis Casier, 1946 - Early Eocene of Belgium
The former species H. elliotti was moved to the even more enigmatic genus Congorhynchus after the fossil was noted to represent a fin spine rather than a rostrum.[3][5] Late-surviving records of Hemirhabdorhynchus from the Early Miocene-aged Pungo River Formation of North Carolina, US, are now thought to represent Aglyptorhynchus instead.[6][7][8]
See also
References
- 1 2 Sepkoski, Jack (2002). "A compendium of fossil marine animal genera". Bulletins of American Paleontology. 364: 560. Archived from the original on 2008-04-30. Retrieved 2009-02-27.
- ↑ Otero, Rodrigo A. (2019-03-26). "Loancorhynchus catrillancai gen. et sp. nov., a new swordfish (Xiphioidei, Blochiidae) from the Middle Eocene of central Chile". PeerJ. 7 e6671. doi:10.7717/peerj.6671. ISSN 2167-8359. PMC 6440463. PMID 30941278.
- 1 2 3 Schultz, Ortwin (1985). "Taxonomische Neugruppierung der Überfamilie Xiphioidea (Pisces, Osteichthyes)". Annalen des Naturhistorischen Museums in Wien. Serie A für Mineralogie und Petrographie, Geologie und Paläontologie, Anthropologie und Prähistorie. 89: 95–202. ISSN 0255-0091. JSTOR 41701870.
- ↑ Murray, A.M. (2000). "The Palaeozoic, Mesozoic and Early Cenozoic fishes of Africa". Fish and Fisheries. 1 (2): 111–145. Bibcode:2000FiFi....1..111M. doi:10.1046/j.1467-2979.2000.00015.x. ISSN 1467-2960. Archived from the original on 2025-03-07.
- ↑ Monsch, Kenneth A. (2004). "Revision of the scombroid fishes from the Cenozoic of England". Earth and Environmental Science Transactions of the Royal Society of Edinburgh. 95 (3–4): 445–489. Bibcode:2004EESTR..95..445M. doi:10.1017/S0263593300001164. ISSN 1755-6929.
- ↑ "PBDB Taxon". paleobiodb.org. Archived from the original on 2025-01-18. Retrieved 2026-05-25.
- ↑ Purdy, Robert W.; Schneider, Vincent P.; Applegate, Shelton P.; McLellan, Jack H.; Meyer, Robert L.; Slaughter, Bob H. (2001). "The Neogene Sharks, Rays, and Bony Fishes from Lee Creek Mine, Aurora, North Carolina". Biodiversity Heritage Library. Retrieved 2025-09-02.
- ↑ Fierstine, Harry (2005-06-01). "A New Aglyptorhynchus (Perciformes: Scombroidei) From the Lincoln Creek Formation (Late Oligocene, Washington, U.S.A.)". Journal of Vertebrate Paleontology. 25 (2): 288–299. doi:10.1671/0272-4634(2005)025[0288:ANAPSF]2.0.CO;2. S2CID 41000842.