subclass crossopterygii Antonyms
No Synonyms and anytonyms found
Meaning of subclass crossopterygii
Wordnet
subclass crossopterygii (n)
fishes having paired fins resembling limbs and regarded as ancestral to amphibians
subclass crossopterygii Sentence Examples
- The subclass Crossopterygii is an extinct group of fish that possessed both ray-fins and lobed fins.
- Crossopterygians are believed to be the ancestors of amphibians, the first vertebrates to live on land.
- The earliest known crossopterygians date back to the Devonian period, approximately 360 million years ago.
- Crossopterygians had a unique combination of features, including jointed fins, a bony skeleton, and a distinctive tooth pattern.
- Some species of crossopterygians were small and agile, while others were large and predatory.
- The subclass Crossopterygii is divided into two orders: the Rhipidistia and the Actinistia.
- Rhipidistians were a diverse group of crossopterygians that included the ancestors of amphibians.
- Actinistians are a small group of crossopterygians that still exist today, represented by the coelacanth fish.
- Crossopterygians were an important transitional group in vertebrate evolution, bridging the gap between fish and land animals.
- The study of crossopterygians provides valuable insights into the origins and diversification of vertebrates.
FAQs About the word subclass crossopterygii
fishes having paired fins resembling limbs and regarded as ancestral to amphibians
No synonyms found.
No antonyms found.
The subclass Crossopterygii is an extinct group of fish that possessed both ray-fins and lobed fins.
Crossopterygians are believed to be the ancestors of amphibians, the first vertebrates to live on land.
The earliest known crossopterygians date back to the Devonian period, approximately 360 million years ago.
Crossopterygians had a unique combination of features, including jointed fins, a bony skeleton, and a distinctive tooth pattern.
