''Sibyllonautilus'' is an extinct genus of nautiloids from the Middle and Late Triassic. It is one of the last of the
Tainoceratidae
Tainoceratidae is a family of late Paleozoic and Triassic nautiloids that are a part of the order Nautilida, characterized by large, generally evolute shells with quadrate to rectangular whorl sections. Shells may bear ribs or nodes, or both.
...
, a family of
nautilids whose range begins much earlier in the
Early Carboniferous
Early may refer to:
Places in the United States
* Early, Iowa, a city
* Early, Texas, a city
* Early Branch, a stream in Missouri
* Early County, Georgia
* Fort Early, Georgia, an early 19th century fort
Music
* Early B, stage name of Jamaican d ...
(Mississippian).
References
Sibyllonautilus Paleobiology db 4/28/14
* Bernhard Kummel, 1964. Nautiloidea -Nautilida; Treatise on Invertebrate Paleontology, Part K. Geological Society of America and University of Kansas Press.
Prehistoric nautiloid genera
Middle Triassic first appearances
Late Triassic extinctions
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