Hallipterus

Hallipterus
Temporal range: Devonian, 383.7–376.1 Ma
Carapace of H. excelsior
Reconstruction after Tetlie (2008)
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Order: †Eurypterida
Superfamily: †Kokomopteroidea
Family: †Hardieopteridae
Genus: †Hallipterus
Kjellesvig-Waering, 1963
Type species
†Hallipterus excelsior
Hall, 1884
Synonyms
  • Dolichocephala Claypole, 1883

Hallipterus is a genus of prehistoric eurypterid classified as part of the family Hardieopteridae.[1]

Description

Life restoration, 2nd and 3rd pairs of legs are speculative

Hallipterus was a gigantic Hardieopterid eurypterid. Though some previous estimates have placed its size at over 1.5 meters in length, these were likely excessive.[1] Still, assigned specimens suggest a size of over 1 meter long.[1]

The carapace was subelliptical, greater in length than in width, with a prominent and unornamented marginal rim. The eyes were very small, close to each other and separated by a prominent median ridge with large ocelli at the posterior extremity.[2]

The chelicerae were simple and elongated. The first walking legs possessed flat and movable spines. The rest of the legs and the opisthosoma remain unknown.[2]

Species

Hallipterus contains one valid species, H. excelsior, from the Devonian of New York.[3] Another species was once recognized from similarly aged deposits in Pennsylvania, "H. lacoanus",[2] but it is today seen as synonymous with H. excelsior.[1]

See also

References

  1. ^ a b c d Tetlie, O. E. (2008). "Hallipterus excelsior, a Stylonurid (Chelicerata: Eurypterida) from the Late Devonian Catskill Delta Complex, and Its Phylogenetic Position in the Hardieopteridae". Bulletin of the Peabody Museum of Natural History. 49: 19–99. doi:10.3374/0079-032X(2008)49[19:HEASCE]2.0.CO;2.
  2. ^ a b c "Page:A Revision of the Families and Genera of the Stylonuracea (Eurypterida).djvu/28 - Wikisource, the free online library". en.wikisource.org. Archived from the original on 2017-12-29. Retrieved 2017-12-28.
  3. ^ Dunlop, J. A., Penney, D. & Jekel, D. 2015. A summary list of fossil spiders and their relatives. In World Spider Catalog. Natural History Museum Bern, online at http://wsc.nmbe.ch Archived 2021-12-04 at the Wayback Machine , version 16.0 http://www.wsc.nmbe.ch/resources/fossils/Fossils16.0.pdf Archived 2015-11-29 at the Wayback Machine (PDF).


Stub icon

This eurypterid-related article is a stub. You can help Wikipedia by adding missing information.

Content Disclaimer

Informasi ini disarikan dari Wikipedia dan disajikan kembali untuk tujuan edukasi. Konten tersedia di bawah lisensi CC BY-SA 3.0. Kami tidak bertanggung jawab atas ketidakakuratan data yang bersumber dari kontribusi publik tersebut.

  1. The information displayed on this website is sourced in part or in whole from Wikipedia and has been adapted for the purpose of restating it. We strive to provide accurate and relevant information, however:
  2. There is no guarantee of absolute accuracy. Wikipedia is an open, collaborative project that can be edited by anyone, so information is subject to change.
  3. It is not intended to constitute professional advice. The content displayed is for informational and educational purposes only. For important decisions (e.g., medical, legal, or financial), please consult a professional.
  4. Content copyright. Wikipedia is licensed under the Creative Commons Attribution-ShareAlike License (CC BY-SA). This means that content may be reused with appropriate attribution and shared under a similar license.
  5. Responsible use. Any risk arising from the use of information from this website is entirely the responsibility of the user.