cyrtochoanite
English
Etymology
cyrto- + choanite
Noun
cyrtochoanite (plural cyrtochoanites)
- A cyrtochoanitic organism.
- 1931 10, Studies in Natural History:
- 81 ) is inclined to regard it as a cyrtochoanite and points out that its narrow siphuncle indicates that it is not a holochoanite . With the exception of this single minute form , which is imperfectly known , even questionable […]
- 1937, Alvin Leonard Lugn; Arthur K. Miller; George Evert Condra; Gerald John Loetterle; Merlin Edward Upson, Correlation of the Members of the Shawnee Group in Southeastern Nebraska and Adjacent Areas of Iowa, Missouri and Kansas: 1933-1947:
- Although it is probable that this form is an orthochoanite and the segments of its siphuncle are cylindrical , it may be a cyrtochoanite with fusiform or even globular siphuncular segments . Until the nature of its siphuncle is […]
- 1939, Geological Society of America, Bulletin of the Geological Society of America:
- The writer agrees with Teichert that Lambeoceras is a cyrtochoanite rather than an orthochoanite as suggested by Troedsson . SOME MIDDLE CARBONIFEROUS AMMONOIDS AND THEIR STRATIGRAPHICAL SIGNIFICANCE BY A. ABSTRACTS 1965.