ammonite

How To Use ammonite In A Sentence

• Correlation of the two regions (Wales and Spain) is achieved by ammonite biostratigraphy; however, the correlation is complicated by diachrony in the ammonite zones, especially around the Pliensbachian / Toarcian boundary.
• The rich Hettangian ammonite fauna first collected and recognized by Muller has been monographed by Guex.
• It has altered the position of the siphuncle, has placed it in the centre instead of leaving it on the back, but it still whirls its spiral logarithmically as did the Ammonites in the earliest ages of the world's existence. The Life of the Spider
• In eastern Mongolia late Permian marine sediments with brachiopods, crinoids and Bryozoa and Triassic marine sediments with ammonites occur in the suture zone, indicating that marine conditions existed during these times.
• The Cardioceratidae were virtually the only ammonites in the Boreal area, to which they were confined.
• In many ammonites the terminal body chamber is relatively large, inflated, and with a constricted aperture or apertural appendages.
• The fossil content consists of ammonites, belemnites, brachiopods, echinoderms, bivalves, crinoids, gastropods, ostracodes and benthic foraminifers.
• Then he lifted its head, wheeled it about by the ammonite, spirograph shells of its horns till its eyes, on stalks, looked back at its bones. Archive 2009-02-01
• Maybe these antediluvian creatures were having a good old natter about the ammonite down the road and then WHAM they got fossilised?
• The in situ position of many of these jaws is of considerable interest and suggests that post-mortem disturbance of the ammonite was not great.