Goulmimichthys is an extinct genus of ray-finned fishes in the family Pachyrhizodontidae. The genus, first described by Cavin in 1995,[1][2] is known from various Turonian age formations. The type species G. arambourgi from the Akrabou Formation in the El Rachidia Province of Morocco,[3] and other fossils described are G. gasparini of the La Frontera Formation, Colombia, and G. roberti from the Agua Nueva Formation of Mexico.
| Goulmimichthys Temporal range: Turonian
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| Goulmimichthys gasparini from La Frontera Formation, Colombia | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | †Crossognathiformes |
| Family: | †Pachyrhizodontidae |
| Genus: | †Goulmimichthys Cavin, 1995 |
| Species | |
Etymology edit
The genus name Goulmimichthys is a combination of the Greek ichthys, "fish" and Goulmima, the city in Morocco where the holotype fossils were found. The species epithet of the type species arambourgi refers to Camille Arambourg, a French paleontologist who worked in North Africa. The species epithet gasparini, given by María Páramo, honours Argentinian paleontologist Zulma Gasparini.[4]
Description edit
The anterior process of the pelvic bone of Goulmimichthys has the same length as the four central abdominal vertebrae, a typical characteristic of the genus.[5] The species G. roberti is known from disarticulated and articulated specimens.[6]
Distribution and habitat edit
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Paleogeography of the Turonian G. arambourgi G. gasparini G. roberti
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Fossils of the type species of Goulmimichthys have been described from the Lower Turonian Akrabou Formation near Goulmima in eastern Morocco.[7] Other species are described from the Turonian La Frontera Formation near Yaguará, Huila, in the Eastern Ranges of the Colombian Andes,[8] and the Agua Nueva Formation of the Lagerstätte Vallecillo in northeastern Mexico.[9]
The fossil fishes were found in associations with other fossil genera, as in Mexico Nursallia gutturosum, Rhynchodercetis regio, Tselfatia formosa, Vallecillichthys multivertebratum,[10] in Morocco Ghrisichthys and Enchodus,[11] and in Colombia Pachyrhizodus etayoi and Bachea huilensis.[8] Alongside the fossil fish assemblages, the fossils of plesiosaurs as Mauriciosaurus fernandezi and Vallecillosaurus donrobertoi in Mexico, the mosasaur Yaguarasaurus columbianus in Colombia and the basal mosasaur Tethysaurus nopcsai and turtles in Morocco were recovered.
References edit
- ^ Goulmimichthys at Fossilworks.org
- ^ Cavin, 1995, p.1049
- ^ Goulmimichthys at GBIF.org
- ^ (in Spanish) Hallan peces fosilizados en el Huila
- ^ Alvarado et al., 2006, p.269
- ^ González & Arratia, 2010, p.125
- ^ Bardet et al., 2008, p.613
- ^ a b Castelblanco & Vásquez, 2016
- ^ Blanco & Cavin, 2003, p.299
- ^ González et al., 2013, p.19
- ^ Cavin et al., 2015
Bibliography edit
- Alvarado Ortega, Jesús; Luis M. Garibay Romero; Alberto Blanco Piñón; Gerardo González Barba; Francisco J. Vega, and Elena Centeno García. 2006. Los peces fósiles de la Formación Mexcala (Cretácico Superior) en el Estado de Guerrero, México. Revista Brasileira de Paleontologia 9. 261–272. Accessed 2017-10-17.
- Bardet, Nathalie; Alexandra Houssaye; Jean-Claude Rage, and Xabier Pereda Suberbiola. 2008. The Cenomanian-Turonian (late Cretaceous) radiation of marine squamates (Reptilia): the role of the Mediterranean Tethys. Bulletin de la Société Géologique de France 179. 605–622. Accessed 2017-10-17.
- Blanco, Alberto, and Lionel Cavin. 2003. New Teleostei from the Agua Nueva Formation (Turonian), Vallecillo (NE Mexico). Comptes Rendus Palevol 2. 299–306. Accessed 2017-10-17.
- Castelblanco Cárdenas, Lilia Milena, and Luis Eduardo Vásquez Salamanca. 2016. GeoFlash - Boletín Semanal Institucional, 1. Servicio Geológico Colombiano. Accessed 2017-10-17.
- Cavin, Lionel; Larbi Boudad; Haiyan Tong; Emilie Läng; Jérôme Tabouelle, and Romain Vullo. 2015. Taxonomic Composition and Trophic Structure of the Continental Bony Fish Assemblage from the Early Late Cretaceous of Southeastern Morocco. PLOS One 10. e0125786. Accessed 2017-10-17.
- Cavin, Lionel. 1995. Goulmimichthys arambourgi n. g., n. sp., un Pachyrhizodontidae (Actinopterygii, Teleostei) d'une nouvelle localité à nodules fossilifères du Turonien inférieur marocain. Comptes Rendus de l'Académie des Sciences de Paris 321. 1049–1054. Accessed 2017-10-17.
- González Rodríguez, Katia A.; Luis Espinosa Arrubarrena, and Gerardo González Barba. 2013. An overview of the Mexican fossil fish record, 9–34. Mesozoic Fishes 5 – Global Diversity and Evolution. Accessed 2017-10-17.
- González Rodríguez, Katia A., and Gloria Arratia. 2010. Fifth International Meeting on Mesozoic Fishes - Global Diversity and Evolution - Abstract book and fieldguides, 1–141. Universidad Autónoma del Estado de Hidalgo. Accessed 2017-10-17.
- Ifrim, Christina. 2006. The fossil Lagerstätte at Vallecillo, north-eastern Mexico: pelagic Plattenkalks related to Cenomanian-Turonian boundary anoxia (PhD thesis), 1–151. Universität Fridericiana Karlsruhe. Accessed 2017-10-17.