Caeruleum (lamprey)
| Caeruleum Temporal range: Early Cretaceous, | |
|---|---|
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Subphylum: | Vertebrata |
| Infraphylum: | Agnatha |
| Superclass: | Cyclostomi |
| Class: | Petromyzontida |
| Order: | Petromyzontiformes |
| Genus: | †Caeruleum Huang, 2023 |
| Type species | |
| †Caeruleum miraculum Huang, 2023 | |
| Other species | |
| |
Caeruleum is an extinct genus of lamprey from the Lower Cretaceous Jiufotang Formation of China. The genus contains two species, C. miraculum and C. gracilis, known from various specimens including complete and partial bodies.