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Definition of Ammonoid
1. Noun. One of the coiled chambered fossil shells of extinct mollusks.
Definition of Ammonoid
1. Noun. ammonite ¹
2. Adjective. Characteristic of an ammonite ¹
¹ Source: wiktionary.com
Definition of Ammonoid
1. ammonite [n -S] - See also: ammonite
Lexicographical Neighbors of Ammonoid
Literary usage of Ammonoid
Below you will find example usage of this term as found in modern and/or classical literature:
1. An Introduction to Geology by William Berryman Scott (1914)
"More significant is the first appearance of the ammonoid division of the ...
which show it to be an ammonoid. Vertebrata. —One of the most characteristic ..."
2. The American Naturalist by American Society of Naturalists, Essex Institute (1871)
"... true ammonoid. This last species presenting itself to the geologist suddenly
according to the usual action of the law of acceleration, has young with ..."
3. Organic Evolution by Richard Swann Lull (1917)
"... until the present time, though now rapidly nearing extinction. ammonoids.—The
ammonoid radicle is suggested in ... The ammonoid line began in the ..."
4. Text-book of Geology by Sir Archibald Geikie (1903)
"Some of these curious aberrations from the normal ammonoid type are represented
in Figs. 453 and 454. Characteristic and peculiar Cretaceous ..."
5. Proceedings of the California Academy of Sciences by California Academy of Sciences (1897)
"loid embryos, while the calcareous shell of the protoconch is an ammonoid character
pushed back by acceleration of de%'elopment until it occurs ..."
6. The New International Encyclopædia edited by Daniel Coit Gilman, Harry Thurston Peck, Frank Moore Colby (1903)
"A curious fossil ammonoid shell found in Cretaceous rocks of Europe, Asia, and
America, characterized by the looseness of the turreted shell, the last coil ..."
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