Symmorium
Sign in to saveleft|thumb|Tooth assigned to Symmorium Symmorium is an extinct symmoriiform cartilaginous fish from the Devonian and Carboniferous of the United States (Illinois) and Russia. The type species, Symmorium reniforme, was named by Edward Drinker Cope in 1893, with other species assigned to the genus having since been reclassified into other genera such as Petalodus. Symmorium bears close similarity in size and appearance to Stethacanthus but lacks the "spine-brush complex" in place of the first dorsal fin. Some paleontologists think that the two forms represented the males and females of related s
Wikidata facts
- Parent taxon
- Symmoriidae
- Image
- Symmorium1DB.jpg
Show 3 more facts
- taxon name
- Symmorium
- taxon rank
- genus
- Commons category
- Symmorium
Sources (1)
via Wikidata · CC0
~1 min read
Encyclopedic overview
1 sectionsContents
- References
left|thumb|Tooth assigned to Symmorium Symmorium is an extinct symmoriiform cartilaginous fish from the Devonian and Carboniferous of the United States (Illinois) and Russia. The type species, Symmorium reniforme, was named by Edward Drinker Cope in 1893, with other species assigned to the genus having since been reclassified into other genera such as Petalodus. Symmorium bears close similarity in size and appearance to Stethacanthus but lacks the "spine-brush complex" in place of the first dorsal fin. Some paleontologists think that the two forms represented the males and females of related species, while other scientists think they were distinct genera.
==References==
Excerpted from Wikipedia’s “Symmorium” article, available under the CC BY-SA 4.0 licence.