-
Barrandeoceras is a large, coiled,
Middle Ordovician nautiloid cephalopod and part of the Tarphycerida. The s**** is
serpenticonic with
whorls touching...
-
siphuncle is tubular, central.
Related genera include Avilionella,
Barrandeoceras, Gasconsoceras, Laureloceras, and Savageoceras.
Walter C.
Sweet 1964...
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straight necks and thin
connecting rings.
Plectoceras and its
contemporary Barrandeoceras are both
likely derived from the Tarphyceratidae;
Plectoceras with its...
- or
using admittedly obsolete nomenclature †Baltoceras †Barinophyton †
Barrandeoceras †B****leroceras †Bathydiscus †Bathyuriscus †Bellacartwrightia †Bellerophon...
- †Balashovia †Balticoceras †Baltoceras †Bambusoceras †Barnesoceras †
Barrandeoceras †B****leroceras †Bastindoceras †Bateroboceras †Bathmoceras †Baykonaroceras...
- Plectoceratidae, is
derived from the
Tarphyceratid genus Campbelloceras while Barrandeoceras, and
therefore the Barrandeoceratidae, is
derived from Centrotarphyceras...
- are
derived from the
tarphyceratid genus,
Centrotarphyceras through Barrandeoceras (Flower 1984), and is the
source for the
Uranoceratidae and Nephriticeratidae...
-
tentative report †Barinophyton †Barinophyton
citrulliforme †
Barrandeoceras †
Barrandeoceras natator †Barrandeophyllum †Barrandeophyllum
reimanni †Barrandeophyllum...
