Portugalophis
| Portugalophis Temporal range: Late Jurassic,
| |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Superorder: | Lepidosauria |
| Clade: | Pan-Squamata |
| Clade: | incertae sedis |
| Family: | †Parviraptoridae |
| Genus: | †Portugalophis Caldwell et al., 2015 |
| Species: | †P. lignites
|
| Binomial name | |
| †Portugalophis lignites Caldwell et al., 2015
| |
Portugalophis (lit. 'Portugal snake') is an extinct genus of squamate reptiles, known from coal beds in Portugal dated to the Late Jurassic (Kimmeridgian age). The genus contains a single species, Portugalophis lignites, known from two maxillae and a dentary. When it was first described in 2015, Portugalophis was identified as part of the snake stem-group.[1] However, later research has provided a more nuanced interpretation; as a member of the enigmatic family Parviraptoridae, it was characterized by an unusual set conflicting anatomical traits comparable in some ways to snakes and varanids within the Toxicofera, while also bearing several characters unlike all modern squamate groups.[2]
References
- ^ Caldwell, Michael W.; Nydam, Randall L.; Palci, Alessandro; Apesteguía, Sebastián (2015-01-27). "The oldest known snakes from the Middle Jurassic-Lower Cretaceous provide insights on snake evolution". Nature Communications. 6 (1) 5996. Bibcode:2015NatCo...6.5996C. doi:10.1038/ncomms6996. ISSN 2041-1723. PMID 25625704.
- ^ Benson, Roger B. J.; Walsh, Stig A.; Griffiths, Elizabeth F.; Kulik, Zoe T.; Botha, Jennifer; Fernandez, Vincent; Head, Jason J.; Evans, Susan E. (October 1, 2025). "Mosaic anatomy in an early fossil squamate". Nature. doi:10.1038/s41586-025-09566-y. ISSN 0028-0836. PMC 12629976. PMID 41034584.