| Morohasaurus Temporal range:
Albian?
| |
|---|---|
Scientific classification
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Order: | Squamata |
| Clade: | Monstersauria |
| Genus: | †
Morohasaurus Ikeda et al., 2021 |
| Type species | |
|
†Morohasaurus kamitakiensis Ikeda et al., 2021
| |
Morohasaurus is an extinct genus of cf. monstersaurian squamates know from a single left dentary from the Early Cretaceous (? Albian) Ohyamashimo Formation of the Sasayama Group in Tamba City, Hyogo Prefecture, Japan. [1] The type and only species is Morohasaurus kamitakiensis.
As of 2021, Ikeda et al. place this taxon a conferatur within Monstersauria based on general synapomorphies but without performing a phylogenetic analysis. The unique characters described in the paper to distinguish Morohasaurus kamitakiensis as a valid species include "the sinuous posteroventral rim of the dentary with a large U-shaped upper notch and small V-shaped lower notch, posteroventral corner of intramandibular septum with a weakly pointed eminence projecting posteriorly, and unicuspid, curved trenchant teeth with distinct blade-like carinae on their mesial and distal sides without grooves or serrations." [1] If its presumed affinities are correct, Morohasaurus represents the oldest known monstersaurian to date.
References
- ^ a b Ikeda, T.; Ota, H.; Tanaka, T.; Ikuno, K.; Kubota, K.; Tanaka, K.; Saegusa, H. (2021). "A fossil Monstersauria (Squamata: Anguimorpha) from the Lower Cretaceous Ohyamashimo Formation of the Sasayama Group in Tamba City, Hyogo Prefecture, Japan". Cretaceous Research. 130: Article 105063. doi: 10.1016/j.cretres.2021.105063. S2CID 239230916.
.jpg){kind=small} | This lizard article is a stub. You can help Wikipedia by expanding it. |
| Morohasaurus Temporal range:
Albian?
| |
|---|---|
|
Scientific classification
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Order: | Squamata |
| Clade: | Monstersauria |
| Genus: | †
Morohasaurus Ikeda et al., 2021 |
| Type species | |
|
†Morohasaurus kamitakiensis Ikeda et al., 2021
| |
Morohasaurus is an extinct genus of cf. monstersaurian squamates know from a single left dentary from the Early Cretaceous (? Albian) Ohyamashimo Formation of the Sasayama Group in Tamba City, Hyogo Prefecture, Japan. [1] The type and only species is Morohasaurus kamitakiensis.
As of 2021, Ikeda et al. place this taxon a conferatur within Monstersauria based on general synapomorphies but without performing a phylogenetic analysis. The unique characters described in the paper to distinguish Morohasaurus kamitakiensis as a valid species include "the sinuous posteroventral rim of the dentary with a large U-shaped upper notch and small V-shaped lower notch, posteroventral corner of intramandibular septum with a weakly pointed eminence projecting posteriorly, and unicuspid, curved trenchant teeth with distinct blade-like carinae on their mesial and distal sides without grooves or serrations." [1] If its presumed affinities are correct, Morohasaurus represents the oldest known monstersaurian to date.
References
- ^ a b Ikeda, T.; Ota, H.; Tanaka, T.; Ikuno, K.; Kubota, K.; Tanaka, K.; Saegusa, H. (2021). "A fossil Monstersauria (Squamata: Anguimorpha) from the Lower Cretaceous Ohyamashimo Formation of the Sasayama Group in Tamba City, Hyogo Prefecture, Japan". Cretaceous Research. 130: Article 105063. doi: 10.1016/j.cretres.2021.105063. S2CID 239230916.
|
| This lizard article is a stub. You can help Wikipedia by expanding it. |