heterostraci (Meaning)
Wordnet
heterostraci (n)
extinct group of armored jawless fishes or fish-like vertebrate; taxonomy is not clear
Synonyms & Antonyms of heterostraci
No Synonyms and anytonyms found
heterostraci Sentence Examples
- The heterostraci, a prehistoric group of jawless fish, possessed distinctive armored heads.
- Heterostracan fossils have been found in various geological formations worldwide, providing insights into ancient marine ecosystems.
- The largest heterostracan species, the Pteraspis, could reach up to 80 centimeters in length.
- Heterostracians had a ventral mouth, a median fin, and two lateral fins.
- The protective head shield of heterostracians was composed of thick, bony plates.
- Heterostracians lacked jaws, and their diet likely consisted of small organisms and detritus.
- The exoskeleton of heterostracians provided both protection and buoyancy.
- Heterostracians inhabited shallow marine environments and were common during the Silurian and Devonian periods.
- The extinction of heterostracians occurred during the Late Devonian, possibly due to environmental changes and competition with other fish groups.
- Heterostracian fossils have proven invaluable in reconstructing the evolutionary history of jawless fish.
FAQs About the word heterostraci
extinct group of armored jawless fishes or fish-like vertebrate; taxonomy is not clear
No synonyms found.
No antonyms found.
The heterostraci, a prehistoric group of jawless fish, possessed distinctive armored heads.
Heterostracan fossils have been found in various geological formations worldwide, providing insights into ancient marine ecosystems.
The largest heterostracan species, the Pteraspis, could reach up to 80 centimeters in length.
Heterostracians had a ventral mouth, a median fin, and two lateral fins.
