Definition of Ammonoid. Meaning of Ammonoid. Synonyms of Ammonoid

Here you will find one or more explanations in English for the word Ammonoid. Also in the bottom left of the page several parts of wikipedia pages related to the word Ammonoid and, of course, Ammonoid synonyms and on the right images related to the word Ammonoid.

Definition of Ammonoid

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Meaning of Ammonoid from wikipedia

- Ammonoids are extinct, (typically) coiled-s****ed cephalopods comprising the subclass Ammonoidea. They are more closely related to living octopuses, squid...
- cephalopods, along with the extinct ammonoids (ammonites) and living coleoids (such as squid, octopus, and kin). While ammonoids and coleoids are monophyletic...
- Goniatids, informally goniatites, are ammonoid cephalopods that form the order Goniatitida, derived from the more primitive Agoniatitida during the Middle...
- Tri****ic epoch. The biostratigraphy is constrained by the presence of the ammonoids Tirolites and Bajarunia, and conodonts. The Tirolites/Columbites beds...
- 99 million years ago. During this time, the first ammonoids appeared, descending from bactritoid nautiloids. Ammonoids during this time period were simple and differed...
- period (231 million years ago). They are considered ancestors of the ammonoids, as well as of the coleoids (octopus, squid, cuttlefish, and the extinct...
- agoniatitid ammonoids would die out in the Taghanic event in the upper middle Givetian. Goniatite ammonoids would give rise to further ammonoid orders, thus...
- However, ammonoid fossils switch over to the lower Acutimitoceras (Stockumites) genozone (UD VI-F), indicating that post-Devonian ammonoids were beginning...
- fossils available in a Paris shop to report the presence of snail fossils (ammonoids) in the Himalayas. Brock's investigation showed that Gupta's earliest...
- Turrilites is a genus of helically coiled ammonoid cephalopods from the lower part of the Upper Cretaceous (Cenomanian and Turonian); generally included...