Fenton and Fenton (1958), The Fossil Book (Doubleday & Co., Garden City, New York). Kümmel, B. (1964) "Nautilida" in Treatise on Invertebrate ...
nautiloids of Order Bactritida, that descended from straight-shelled nautiloids of Order Orthocerida.
unchanged for millions of years and often are considered to be "living fossils"
The order Nautilida belongs to the class of Squid-like animals (Cephalopoda) and phylum of Molluscs (Mollusca). The nautilus is a cephalopod whose " siphoning" ...
Siphuncle interiors are highly varied from order to order.
Name: Cymatoceras Order:Nautilida, Family: Cymatoceratidae: Cymatoceras sakalavus Age: Triassic Size: The fossil is 4 3/4” in diameter Fossil Location: Tulear ...
A compendium of fossil marine animal genera.
Colorful Madagascar Chambered Nautiloid Fossil. Cymatoceras sakalavus. Phylum Mollusca, Class Cephalopoda, Subclass Nautiloidea, Order Nautilida, Family ...
1.7.2.3 Order Nautilida (Chambered Nautilus); 1.7.2.4 Order
Fossil nautiloid. Fossil nautiloid Trilacinoceras