- ISSN 1214-1119. Kröger, B.; Mapes, R. H. (2007). "On the
origin of
bactritoids (Cephalopoda)". Paläontologische Zeitschrift. 81 (3): 316–327. doi:10...
- ago.
During this time, the
first ammonoids appeared,
descending from
bactritoid nautiloids.
Ammonoids during this time
period were
simple and differed...
-
ancestral order within the
cephalopod subclass Ammonoidea originating from
bactritoid nautiloids, that
lived in what
would become Africa, Asia, Australia, Europe...
- 3 Ma.
During this time, the
first ammonoids appeared,
descending from
bactritoid nautiloids.
Ammonoids during this time
period were
simple and differed...
-
period along with the ammonites. The belemnoids'
origin lies
within the
bactritoid nautiloids,
which date from the
Devonian period; well-formed belemnoid...
- Neo-Latin siphunculus,
meaning "little siphon".
Originating from
within the
bactritoid nautiloids, the
ammonoid cephalopods first appeared in the
Devonian (circa...
- †Rhiphaeoteuthidae
Genus †Rhiphaeoteuthis Doguzhaeva, L. (2002). "Adolescent
bactritoid, orthoceroid,
ammonoid and
coleoid s**** from the
Upper Carboniferous...
- as it was
known in
Siberian representations). They were
descended from
bactritoid nautiloid ancestors,
which also
appeared in this
stage before experiencing...
- Economiche. 20: 37–138. Shimansky, V.N. (1954). "Straight
nautiloids and
bactritoids of the
Sakmarian and
Artinskian stages of the
South Urals".
Trudy Paleontologicheskogo...
- beak), but its
morphology aligns it with the nautiloids, or
perhaps the
bactritoids or belemnoids. Saunders, W. B.; Richardson, E. S. (1979). "Middle Pennsylvanian...
