- The
Proterocameroceratidae were the
first of the Endocerida. They
began early in the
Ordovician with
Proendoceras or
similar genus which had developed...
-
ellesmerocerid gave rise to Proendoceras, the
earliest representative of the
Proterocameroceratidae and
hence of the Endocerida.
Endocerids evolved from ellesmerocerids...
- =
early Middle -Upper Canadian) .
Pilocerids split off from the
Proterocameroceratidae very
shortly after their inception and are the
first family which...
-
endocerida seems at best tentative. Some endocerids,
derived from the
Proterocameroceratidae, Najaceras, Cacheoceras, and Williamsoceras, have a longitudinal...
-
endocones which lack the more
complex structures ****ociated with the
Proterocameroceratidae and
their derivatives. Endocones,
nested cone-shaped
deposits characteristic...
-
siphuncle is
large but
details are unknown. Teichert, C, 1964.
Proterocameroceratidae, pp 166– 170 in the
Treatise on
Invertebrate Paleontology Part K...
-
Rousseau Flower in 1941 The
genus was
originally included in the
Proterocameroceratidae (Flower, 1955) but
later (Flower, 1976)
placed with its predecessor...
-
Mollusca class:
Cephalopoda Subclass:
Nautiloidea Order: †Endocerida Family: †
Proterocameroceratidae Genus: †Lobendoceras
Teichert and Glenister, 1954...
-
China and
Korea (Flower 1955, 1968,
Teichert 1964)
derived from the
Proterocameroceratidae, by a
lengthening of the
septal necks.
Williamsoceras is included...
- or
Mcqueenoceras and the
siphuncle is larger. Teichert, C, 1964.
Proterocameroceratidae, pp 166– 170 in the
Treatise on
Invertebrate Paleontology Part K...
