As with all other antiarchs, Pterichthyodes had heavily armored heads and forebodies, while their scaly tails were unarmored. Specimen length ranges from 8 inches (20 cm) to 12 inches (30 cm).[1] As placoderms, they were members of the earliest known vertebrates to possess jaws, though they had grinding plates rather than teeth. The generic name of Pterichthyodes refers directly to their odd wing-like appendages ("pterichthys" being a compound crassis word from Ancient Greek for "wing-fish"), which correspond to and were derived from the pectoral fins seen in modern fish and other non-antiarch placoderms. Fossils of Pterichtyodes showing eyes positioned on the direct of the head and a "ventrally flattened trunk shield" suggest that it was a "bottom dweller", living at the bottom of lakes,
| Attributes | Values |
|---|
| rdfs:label
| - Pterichthyodes
- Pterichthyodes
|
| rdfs:comment
| - As with all other antiarchs, Pterichthyodes had heavily armored heads and forebodies, while their scaly tails were unarmored. Specimen length ranges from 8 inches (20 cm) to 12 inches (30 cm).[1] As placoderms, they were members of the earliest known vertebrates to possess jaws, though they had grinding plates rather than teeth. The generic name of Pterichthyodes refers directly to their odd wing-like appendages ("pterichthys" being a compound crassis word from Ancient Greek for "wing-fish"), which correspond to and were derived from the pectoral fins seen in modern fish and other non-antiarch placoderms. Fossils of Pterichtyodes showing eyes positioned on the direct of the head and a "ventrally flattened trunk shield" suggest that it was a "bottom dweller", living at the bottom of lakes,
|
| sameAs
| |
| dcterms:subject
| |
| abstract
| - As with all other antiarchs, Pterichthyodes had heavily armored heads and forebodies, while their scaly tails were unarmored. Specimen length ranges from 8 inches (20 cm) to 12 inches (30 cm).[1] As placoderms, they were members of the earliest known vertebrates to possess jaws, though they had grinding plates rather than teeth. The generic name of Pterichthyodes refers directly to their odd wing-like appendages ("pterichthys" being a compound crassis word from Ancient Greek for "wing-fish"), which correspond to and were derived from the pectoral fins seen in modern fish and other non-antiarch placoderms. Fossils of Pterichtyodes showing eyes positioned on the direct of the head and a "ventrally flattened trunk shield" suggest that it was a "bottom dweller", living at the bottom of lakes, where it might have crawled using its pectoral appendages.[1] It has also been theorized that Pterichthyodes and other antiarchs used these appendages to bury itself.[2] Pterichthyodes would have fed by browsing shallower areas of the lake bed for decaying detritus.
|
![[RDF Data]](/fct/images/sw-rdf-blue.png)