ammonite


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.

ammonite

(ăm`ənīt), one of a type of extinct marine cephalopodcephalopod
, member of the class Cephalopoda, the most highly organized group of mollusks (phylum Mollusca), and including the squids, octopuses, cuttlefish, and nautiluses. The class as a whole has become adapted for a free-swimming existence.
..... Click the link for more information.
 mollusk, related to the nautilusnautilus
or chambered nautilus,
cephalopod mollusk belonging to the sole surviving genus (Nautilus) of a subclass that flourished 200 million years ago, known as the nautiloids.
..... Click the link for more information.
 and resembling it in having an elaborately coiled and chambered shell. Unlike the interiors of nautilus shells, the chambers of ammonite shells display intricately shaped septa and sutures. The type included numerous species, which were widely distributed during the Mesozoic era, about 200 million years ago. Ammonites are classified in the phylum MolluscaMollusca
, taxonomic name for the one of the largest phyla of invertebrate animals (Arthropoda is the largest) comprising more than 50,000 living mollusk species and about 35,000 fossil species dating back to the Cambrian period.
..... Click the link for more information.
, class Cephalopoda, subclass Ammonoidea.

ammonite

[′a·mə‚nīt]
(materials)
An explosive containing 70-95% ammonium nitrate.
(paleontology)
A fossil shell of the cephalopod order Ammonoidea.

ammonite

1
1. any extinct marine cephalopod mollusc of the order Ammonoidea, which were common in Mesozoic times and generally had a coiled partitioned shell. Their closest modern relative is the pearly nautilus
2. the shell of any of these animals, commonly occurring as a fossil

ammonite

2
1. an explosive consisting mainly of ammonium nitrate with smaller amounts of other substances, such as TNT
2. a nitrogenous fertilizer made from animal wastes
References in periodicals archive ?
4) The unusual provinciality shown by the bivalve fauna has also been observed in the coeval Ammonite fauna of the Salt Range and the Surghar Range.
The Upper Cretaceous (Turonian) ammonite family Coilopoceratidae Hyatt in the Western Interior of the United States.
Eliyahu (a 13 th century Greek exegete) adds that the Bible sometimes refers to Ammonite lands as "Moabite" because Moab was the older (1) brother of Ammon (see Gen.
The Ammonites, Moabites, Edomites, and Amalekites who lived south and east of ancient Palestine -- the Promised Land in the Hebrew Bible -- mistreated, cursed, attacked and refused safe passage to the Israelites who trekked to Palestine.
See, for example, the discussion in Frank Moore Cross, "The Ammonite Oppression of the Tribes of Gad and Reuben: Missing Verses in 1 Samuel 11 found in 4QSamuel (a)," in History, Historiography and Interpretation: Studies in Biblical and Cuneiform Literatures, H.
The new ammonite data have permitted a re-assessment of the ammonite biostratigraphy in the study area.
That's not poo," I told her, "It's ammonite and why do you need to bring it on holiday?
And there is the mystery behind Grandpa's instant discovery of a large ammonite on the beach; did he take it there hidden in his rucksack, ready to produce at the right moment?
Among the passages he interprets are Judah and Tamar; David and Goliath; Judith the female warrior, and David, Bathsheba, and the Ammonite War.
It is famous for its ammonite fossils and is used as a source of lime for making lime mortar.
Morteza Hemmati stumbled upon the ammonite fossil while digging around his farm.
Detonators, ammonite, and other items were found during the examination.