order Stegocephalia

9.9

A group of ancient amphibians with large bodies and bony skulls that lived before the Jurassic

noun
/ˈɔrdər ˌstɛɡoʊˈsɛfəliə/

Archaic

: orden Stegocephalia

In the nineteenth century, paleontologists frequently classified prehistoric amphibians under order Stegocephalia.

Examples

The bony skulls characteristic of order Stegocephalia helped protect these ancient creatures from predators.
Many fossils from the order Stegocephalia have been discovered.
Fossils of order Stegocephalia provide insight into the early evolution of amphibians.
The order Stegocephalia includes various ancient amphibians.
Fossils of order Stegocephalia provide insight into the early evolution of amphibians.
In the nineteenth century, paleontologists frequently classified prehistoric amphibians under order Stegocephalia.
The bony skulls characteristic of order Stegocephalia helped protect these ancient creatures from predators.

Synonyms

Stegocephalia

vsorder Stegocephalia

Archaic

9.9

Large extinct animals like frogs or salamanders with heavy armored skulls that lived long ago

is the historical taxonomic division that also includes some later related fossils

Surface Forms

order Stegocephalia singular

order Stegocephalias plural

Morphology

order + Stegocephalia

The noun phrase is fully compositional: 'order' as a taxonomic rank combined with the proper name 'Stegocephalia' straightforwardly denotes the taxonomic grouping of those amphibians. A B1 learner who knows both words can reasonably infer it refers to the biological order containing Stegocephalia; this is a non‑idiomatic, cross‑linguistically common naming pattern.

Etymology

Order Stegocephalia comes from the Greek parts stego and cephalia, meaning 'roof' and 'head', because these ancient amphibians had heavy, roof-like skulls. Scientists used this name for an older 'group' of large, early salamander-like amphibians, so the name helps you remember they had big bony heads.