Cyptendoceras [SEP] parent taxon
Cyptendoceras
Cyptendoceras is an extinct nautiloid cephalopod included in the family Ellesmeroceratidae that lived in what would be North and South America during the latter part of the Early Ordovician (late Arenig) from about 475 - 472 mya, existing for approximately .
Taxonomy.
"Cyptendoceras" was named by Ulrich and Foerste (1936). Teichert (1964, in the Treatise), included it in the endocerid family Proterocameroceratidae. Flower (1964) assigned it to the Baltoceratidae, at that time included in the Ellesmeroceratida. Kroger et
†" Cybelurus halo"
- †" Cymbidium"
- †" Cypricardella"
- †" Cypricardella connata"
- †" Cypricardella striata" – or unidentified related form
- †" Cypricardinia"
- †" Cypricardinia moorefieldana" – or unidentified related form
- †" Cyptendoceras"
- †" Cyptendoceras kirki" – type locality for species
- †" Cyptendoceras rhythmicum" – type locality for species
- †" Cyrtia"
- †" Cyrtina"
- †"