Gasterorhamphosus

Gasterorhamphosus
Temporal range:
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Syngnathiformes
Suborder: Syngnathoidei
Genus: Gasterorhamphosus
Sorbini, 1981
Species:
G. zuppichini
Binomial name
Gasterorhamphosus zuppichini
Sorbini, 1981

Gasterorhamphosus is an extinct genus of marine syngnathiform fish that lived during the Campanian stage of the Late Cretaceous.[1] It contains a single species, G. zuppichini from the Calcari di Melissano formation of Italy.[2]

It is the oldest known syngnathiform fish, making it distantly related to modern seahorses, pipefish, and trumpetfish.[3] It shares an especially close similarity to modern snipefish, and has sometimes been placed in the same clade as them (the Centriscoidea).[4] Others have found it to instead belong to the Aulostomoidea, containing trumpetfish and cornetfish.[3] However, other analyses indicate that it likely occupies a more stemward position within the group.[4] Despite this, studies have found it to at least group within the "long-snouted" clade of Syngnathiformes (the Syngnathoidei), making it the earliest known crown group-syngnathiform, and the oldest known definitive crown-group percomorph.[3][5]

References

  1. ^ a b 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.
  2. ^ Santaquiteria, Aintzane; Siqueira, Alexandre C; Duarte-Ribeiro, Emanuell; Carnevale, Giorgio; White, William T; Pogonoski, John J; Baldwin, Carole C; Ortí, Guillermo; Arcila, Dahiana; Ricardo, Betancur-R (2021-10-13). Friedman, Matt (ed.). "Phylogenomics and Historical Biogeography of Seahorses, Dragonets, Goatfishes, and Allies (Teleostei: Syngnatharia): Assessing Factors Driving Uncertainty in Biogeographic Inferences". Systematic Biology. 70 (6): 1145–1162. doi:10.1093/sysbio/syab028. ISSN 1063-5157.
  3. ^ a b c Brownstein, C D (2023-01-10). "Syngnathoid Evolutionary History and the Conundrum of Fossil Misplacement". Integrative Organismal Biology. 5 (1). doi:10.1093/iob/obad011. ISSN 2517-4843. PMC 10210065. PMID 37251781.
  4. ^ a b [email protected], Kleyton Magno Cantalice~Universidad Nacional Autónoma de; Mé[email protected], Jesús Alvarado-Ortega~Universidad Nacional Autónoma de (2016-12-12). "Eekaulostomus cuevasae gen. and sp. nov., an ancient armored trumpetfish (Aulostomoidea) from Danian (Paleocene) marine deposits of Belisario Domínguez, Chiapas, southeastern Mexico". Palaeontologia Electronica. doi:10.26879/682. Retrieved 2025-12-24.
  5. ^ Brownstein, Chase D.; Harrington, Richard C.; Alencar, Laura R. V.; Bellwood, David R.; Choat, John H.; Rocha, Luiz A.; Wainwright, Peter C.; Tavera, Jose; Burress, Edward D.; Muñoz, Martha M.; Cowman, Peter F.; Near, Thomas J. (2025-05-07). "Phylogenomics establishes an Early Miocene reconstruction of reef vertebrate diversity". Science Advances. 11 (19) eadu6149. doi:10.1126/sciadv.adu6149. PMC 12057688. PMID 40333985.