Nhanulepisosteus

In today's world, Nhanulepisosteus is a topic that has become very relevant in modern society. With the advancement of technology and constant changes in the way we communicate, Nhanulepisosteus has become a point of interest for many. Whether through social networks, television, or any other means of communication, Nhanulepisosteus has managed to capture the attention of a wide spectrum of the population. In this article, we will explore the different facets of Nhanulepisosteus and its impact on our lives, as well as the implications it has for the future. From its influence on politics and economics, to its role in popular culture, Nhanulepisosteus is a phenomenon we cannot ignore.

Nhanulepisosteus
Temporal range: Late Jurassic (Kimmeridgian),
Fossil neurocranium
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Clade: Ginglymodi
Order: Lepisosteiformes
Family: Lepisosteidae
Genus: †Nhanulepisosteus
Brito, Alvarado-Ortega & Meunier, 2017
Species:
†N. mexicanus
Binomial name
†Nhanulepisosteus mexicanus
Brito, Alvarado-Ortega & Meunier, 2017

Nhanulepisosteus (nhanu, Mixteca for "old" + Lepisosteus) is an extinct genus of gar known from the Late Jurassic of Oaxaca, Mexico. It contains a single species, N. mexicanus. It is the oldest species of true gar known from fossil remains.[1][2][3]

Nhanulepisosteus is known from disarticulated cranial remains and ganoid scales from the Kimmeridgian-aged Llano Yosobé deposits of the Sabinal Formation. Although retaining some traits of basal Ginglymodi, it has certain derived features such as jaw structure that more closely resemble modern gar, indicating that gar are a highly morphologically conservative group.[2]

Nhanulepisosteus inhabited a fully marine environment, contrasting with modern gar that are largely freshwater taxa, with only occasional sightings in marine environments. This indicates that gar may have originally been marine fish before invading freshwater environments prior to the Early Cretaceous.[2]

References

  1. ^ "Fossilworks: Nhanulepisosteus". Paleobiology Database. Retrieved 26 May 2023.
  2. ^ a b c Brito, Paulo M.; Alvarado-Ortega, Jésus; Meunier, François J. (19 December 2017). "Earliest known lepisosteoid extends the range of anatomically modern gars to the Late Jurassic". Scientific Reports. 7 (1): 17830. Bibcode:2017NatSR...717830B. doi:10.1038/s41598-017-17984-w. ISSN 2045-2322. PMC 5736718. PMID 29259200.
  3. ^ "Gar | Fish & Facts | Britannica". www.britannica.com. Retrieved 26 May 2023.


Stub icon

This Lepisosteiformes-related article is a stub. You can help Wikipedia by expanding it.