Noritidea
Encyclopedia
The Noritidae, sometimes spelled Noritidea, is an extinct cephalopod family of belonging to the ammonoid order Ceratitida
and superfamily Noritaceae
.
The Noritidae, which lived during the Early and Middle Triassic, are characterized by smooth, flat, discoidal shells with tabulate venters bordered by pronounced shoulders. Sutures are ceratitic with club-shaped saddles.
Ceratitida
The Ceratitida is an order that contains almost all ammonoid cephalopod genera from the Triassic as well as ancestral forms from the Upper Permian, the exception being the phylloceratids which gave rise to the great diversity of post Triassic ammonites....
and superfamily Noritaceae
Noritaceae
Noritaceae is an extinct superfamily of cephalopods belonging to the Ammonite order Ceratitida.The Noritaceae, defined by Karpinsky in 1889, combines ceratitids with "typically smooth, more or less discoidal shells with rounded or truncate peripheries and ceratitic sutures,...." Keeled or ribbed...
.
The Noritidae, which lived during the Early and Middle Triassic, are characterized by smooth, flat, discoidal shells with tabulate venters bordered by pronounced shoulders. Sutures are ceratitic with club-shaped saddles.