On <i>Segurasaurus</i> (Squamata: Pythonomorpha), a New Genus of Lizard from the Cenomanian (Upper Cretaceous) of Portugal
<i>Carentonosaurus soaresi</i> was recently described in the uppermost middle Cenomanian (Upper Cretaceous) of Casais dos Carecos (Coimbra, western Portugal) based on a diverse set of new material (cervical and dorsal vertebrae) of the Pythonomorpha lizard. The main morphological charact...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-03-01
|
| Series: | Geosciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3263/14/3/84 |
| _version_ | 1797240893746446336 |
|---|---|
| author | Mélani Berrocal-Casero Ricardo Pimentel Pedro Miguel Callapez Fernando Barroso-Barcenilla Senay Ozkaya de Juanas |
| author_facet | Mélani Berrocal-Casero Ricardo Pimentel Pedro Miguel Callapez Fernando Barroso-Barcenilla Senay Ozkaya de Juanas |
| author_sort | Mélani Berrocal-Casero |
| collection | DOAJ |
| description | <i>Carentonosaurus soaresi</i> was recently described in the uppermost middle Cenomanian (Upper Cretaceous) of Casais dos Carecos (Coimbra, western Portugal) based on a diverse set of new material (cervical and dorsal vertebrae) of the Pythonomorpha lizard. The main morphological characteristics observed in the vertebrae used for the diagnosis of this species are the presence of distinct lateral and subcentral foramina, highly laterally projected paradiapophyses beyond the prezygapophyses, a low subrectangular neural spine ornamented with longitudinal grooves, and dorsal vertebrae displaying a sagittal furrow along the ventral surface. Additional diagnostic details observed both in new material and the previously studied vertebrae are described herein, such as the presence of keels in the zygantrum and zygosphene. These and other important morphological characteristics present in the species <i>soaresi</i> are absent in the genotype <i>Carentonosaurus mineaui</i> and in other known Squamata, allowing for the definition of the new genus <i>Segurasaurus</i>. |
| first_indexed | 2024-04-24T18:14:40Z |
| format | Article |
| id | doaj.art-5f60be3664c945788cfbb5bed9dfa3ed |
| institution | Directory Open Access Journal |
| issn | 2076-3263 |
| language | English |
| last_indexed | 2024-04-24T18:14:40Z |
| publishDate | 2024-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Geosciences |
| spelling | doaj.art-5f60be3664c945788cfbb5bed9dfa3ed2024-03-27T13:43:28ZengMDPI AGGeosciences2076-32632024-03-011438410.3390/geosciences14030084On <i>Segurasaurus</i> (Squamata: Pythonomorpha), a New Genus of Lizard from the Cenomanian (Upper Cretaceous) of PortugalMélani Berrocal-Casero0Ricardo Pimentel1Pedro Miguel Callapez2Fernando Barroso-Barcenilla3Senay Ozkaya de Juanas4Departamento de Geodinámica, Estratigrafía y Paleontología (Grupo de Investigación Procesos Bióticos Mesozoicos), Universidad Complutense de Madrid, 28040 Madrid, SpainDepartamento de Geología, Geografía y Medio Ambiente (Grupo de Investigación PaleoIbérica), Universidad de Alcalá, 28805 Alcalá de Henares, SpainDepartamento de Geología, Geografía y Medio Ambiente (Grupo de Investigación PaleoIbérica), Universidad de Alcalá, 28805 Alcalá de Henares, SpainDepartamento de Geodinámica, Estratigrafía y Paleontología (Grupo de Investigación Procesos Bióticos Mesozoicos), Universidad Complutense de Madrid, 28040 Madrid, SpainDepartamento de Geología, Geografía y Medio Ambiente (Grupo de Investigación PaleoIbérica), Universidad de Alcalá, 28805 Alcalá de Henares, Spain<i>Carentonosaurus soaresi</i> was recently described in the uppermost middle Cenomanian (Upper Cretaceous) of Casais dos Carecos (Coimbra, western Portugal) based on a diverse set of new material (cervical and dorsal vertebrae) of the Pythonomorpha lizard. The main morphological characteristics observed in the vertebrae used for the diagnosis of this species are the presence of distinct lateral and subcentral foramina, highly laterally projected paradiapophyses beyond the prezygapophyses, a low subrectangular neural spine ornamented with longitudinal grooves, and dorsal vertebrae displaying a sagittal furrow along the ventral surface. Additional diagnostic details observed both in new material and the previously studied vertebrae are described herein, such as the presence of keels in the zygantrum and zygosphene. These and other important morphological characteristics present in the species <i>soaresi</i> are absent in the genotype <i>Carentonosaurus mineaui</i> and in other known Squamata, allowing for the definition of the new genus <i>Segurasaurus</i>.https://www.mdpi.com/2076-3263/14/3/84CenomanianPythonomorpha<i>Carentonosaurus</i><i>Segurasaurus</i>vertebraeIberian Peninsula |
| spellingShingle | Mélani Berrocal-Casero Ricardo Pimentel Pedro Miguel Callapez Fernando Barroso-Barcenilla Senay Ozkaya de Juanas On <i>Segurasaurus</i> (Squamata: Pythonomorpha), a New Genus of Lizard from the Cenomanian (Upper Cretaceous) of Portugal Geosciences Cenomanian Pythonomorpha <i>Carentonosaurus</i> <i>Segurasaurus</i> vertebrae Iberian Peninsula |
| title | On <i>Segurasaurus</i> (Squamata: Pythonomorpha), a New Genus of Lizard from the Cenomanian (Upper Cretaceous) of Portugal |
| title_full | On <i>Segurasaurus</i> (Squamata: Pythonomorpha), a New Genus of Lizard from the Cenomanian (Upper Cretaceous) of Portugal |
| title_fullStr | On <i>Segurasaurus</i> (Squamata: Pythonomorpha), a New Genus of Lizard from the Cenomanian (Upper Cretaceous) of Portugal |
| title_full_unstemmed | On <i>Segurasaurus</i> (Squamata: Pythonomorpha), a New Genus of Lizard from the Cenomanian (Upper Cretaceous) of Portugal |
| title_short | On <i>Segurasaurus</i> (Squamata: Pythonomorpha), a New Genus of Lizard from the Cenomanian (Upper Cretaceous) of Portugal |
| title_sort | on i segurasaurus i squamata pythonomorpha a new genus of lizard from the cenomanian upper cretaceous of portugal |
| topic | Cenomanian Pythonomorpha <i>Carentonosaurus</i> <i>Segurasaurus</i> vertebrae Iberian Peninsula |
| url | https://www.mdpi.com/2076-3263/14/3/84 |
| work_keys_str_mv | AT melaniberrocalcasero onisegurasaurusisquamatapythonomorphaanewgenusoflizardfromthecenomanianuppercretaceousofportugal AT ricardopimentel onisegurasaurusisquamatapythonomorphaanewgenusoflizardfromthecenomanianuppercretaceousofportugal AT pedromiguelcallapez onisegurasaurusisquamatapythonomorphaanewgenusoflizardfromthecenomanianuppercretaceousofportugal AT fernandobarrosobarcenilla onisegurasaurusisquamatapythonomorphaanewgenusoflizardfromthecenomanianuppercretaceousofportugal AT senayozkayadejuanas onisegurasaurusisquamatapythonomorphaanewgenusoflizardfromthecenomanianuppercretaceousofportugal |