Pachydiadema
Extinct genus of barnacles
From Wikipedia, the free encyclopedia
Pachydiadema is an extinct genus of acorn barnacles in the order Balanomorpha that lived in what is now Sweden during the early Campanian.[1] The genus is monospecific, containing a single species, Pachydiadema cretaceum.[5][4]
| Pachydiadema Temporal range: | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Clade: | Pancrustacea |
| Class: | Thecostraca |
| Subclass: | Cirripedia |
| Order: | Balanomorpha |
| Superfamily: | †Pachydiadematoidea Chan et al., 2021[2] |
| Family: | †Pachydiadematidae Chan et al., 2021[3] |
| Genus: | †Pachydiadema Withers, 1935[4] |
| Species: | †P. cretaceum |
| Binomial name | |
| †Pachydiadema cretaceum Withers, 1935[5] | |
| Synonyms[6] | |
| |
It is the only genus in the family Pachydiadematidae and superfamily Pachydiadematoidea, both of which are monotypic.[4][3][2] It was originally described as a subgenus of Catophragmus, but was redescribed as a separate genus in 2014.[6]
