pelycosaur: meaning, definition, pronunciation and examples
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Quick answer
What does “pelycosaur” mean?
An extinct type of primitive synapsid reptile from the Paleozoic Era.
Audio
Pronunciation
Definition
Meaning and Definition
An extinct type of primitive synapsid reptile from the Paleozoic Era.
A member of a polyphyletic group of prehistoric animals often considered precursors to mammals, characterized by a sail-like dorsal fin.
Dialectal Variation
British vs American Usage
Differences
No significant differences in usage or spelling.
Connotations
Identical scientific connotations.
Frequency
Equally rare and technical in both dialects.
Grammar
How to Use “pelycosaur” in a Sentence
The [ADJ] pelycosaur...[Proper noun], a well-known pelycosaur,...Vocabulary
Collocations
Examples
Examples of “pelycosaur” in a Sentence
verb
British English
- Not applicable
American English
- Not applicable
adverb
British English
- Not applicable
American English
- Not applicable
adjective
British English
- The pelycosaur lineage is fascinating.
- They found pelycosaur bones in the quarry.
American English
- The pelycosaur fauna of Texas is well-studied.
- It was a pelycosaur characteristic.
Usage
Meaning in Context
Business
Not applicable.
Academic
Used in paleontology, evolutionary biology, and earth science texts to discuss early terrestrial vertebrate life and the evolution of mammals.
Everyday
Virtually never used.
Technical
Primary usage context. Appears in scientific papers, museum displays, and popular science documentaries.
Watch out
Common Mistakes When Using “pelycosaur”
- Mispronounced as /piːˈlaɪkəsɔːr/.
- Incorrectly classified as a dinosaur.
- Misspelled as 'pelicosaur'.
FAQ
Frequently Asked Questions
No. Pelycosaurs are synapsids, a group that includes mammals and their extinct relatives. Dinosaurs are sauropsids, a separate lineage leading to reptiles and birds.
The name comes from Greek 'pelyx' meaning 'bowl' or 'basin' and 'sauros' meaning 'lizard', likely referring to the shape of their hip bones.
They lived primarily during the Carboniferous and Permian periods, approximately 318 to 252 million years ago.
In modern cladistics, 'Pelycosauria' is considered a paraphyletic (informal) group, as it includes the common ancestors of mammals but not all of their descendants.
An extinct type of primitive synapsid reptile from the Paleozoic Era.
Pelycosaur is usually technical in register.
Pelycosaur: in British English it is pronounced /ˈpɛlɪkəˌsɔː/, and in American English it is pronounced /ˈpɛləkəˌsɔr/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “Not applicable”
Learning
Memory Aids
Mnemonic
Picture a PElican carrying a lizard with a SAil on its back - PELycoSAUR.
Conceptual Metaphor
Not commonly used metaphorically.
Practice
Quiz
Pelycosaurs are most closely related to which group?