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Ceratites – rodzaj głowonogów z wymarłej podgromady amonitów, z rzędu Ceratitida. Żył w okresie triasu (najwyższy anizyk - ladyn) [1]. Jest to rodzaj o ceratytowej linii przegrodowej, lekko ewolutnej muszli, większość gatunków posiada wydatne żebra, a niektóre także kolce (np. Ceratites spinosus ).
Ceratites is an extinct genus of ammonite cephalopods. These nektonic carnivores lived in marine habitats in what is now Europe, during the Triassic, from the upper-most Anisian to the lower Ladinian age. Description. This ammonite has a ceratitic suture pattern on its shell (smooth lobes and frilly saddles).
Ceratites, extinct genus of cephalopods (whose modern members include the octopus, the squid, and the nautilus) that serves as an index fossil for marine rocks and time of the Middle Triassic Period (245.9 million to 228.7 million years ago). The shell consisted of a series of chambers arranged in.
Ceratitida is an order that contains almost all ammonoid cephalopod genera from the Triassic as well as ancestral forms from the Upper Permian, the exception being the phylloceratids which gave rise to the great diversity of post-Triassic ammonites .
A new ceratite locality from Gołuchowice (Upper Silesia, Poland) is described. Ceratites from the spinosus group found there include Ceratites (Acanthoceratites) cf. praespinosus, found for the first time in Upper Silesia. Five ceratite zones are proposed for that region: pulcher, robustus, compressus, evolutus and spinosus.
22 lip 2018 · The ceratites of the order Ceratitida (or suborder Ceratitina, depending on how you've tuned your rank-o-meter today) were close relatives of the ammonites, each deriving separately from an earlier cephalopod group known as the prolecanitids.
Ceratites are certainly the most common Muschelkalk fossils. The cephalopod order Ceratidida comprises the typical Triassic ammonoids with the simple sinuous suture line. During Triassic times, ammonoids reached their maximum diversity.
