Cynodontia
Definition
- Noun:
- A taxonomic division within the order Therapsida: Cynodontia refers to a group of extinct, mostly small, carnivorous synapsids (often called "mammal-like reptiles") that lived from the Late Permian through the Triassic periods. They are characterized by advanced, mammal-like teeth and skeletal features that are evolutionary precursors to mammals.
Usage Examples
- Noun:
- The fossil record shows that Cynodontia exhibited increasingly mammalian jaw structures.
- Paleontologists study Cynodontia to understand the transition from reptiles to mammals.
Advanced Usage
- In phylogenetic context: The term is used to denote a clade, meaning it includes all descendants of a common ancestor.
- Cynodontia is a key clade for tracing the origin of mammalian characteristics.
Variants and Related Words
- Cynodont (n): A member of the Cynodontia group.
- The cynodont had differentiated teeth similar to modern mammals.
Synonyms
- Advanced therapsids (in a broad evolutionary context).
- Mammal-like reptiles (a common, though technically paraphyletic, descriptive term for therapsids including cynodonts).
Related Phrases / Compound Terms
- Cynodontia fossils: Fossils belonging to this group.
- The museum has an impressive collection of Cynodontia fossils.
- Cynodontia research: Scientific study focused on this taxon.
Noun
-
a division of the order Therapsida from the Triassic period comprising small carnivorous tetrapod reptiles often with mammal-like teeth
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