Ammonoids are a group of extinct marine mollusc animals in the subclass Ammonoidea of the class Cephalopoda. These molluscs, commonly referred to as ammonites, are more closely related to living coleoids than they are to shelled nautiloids such as the living Nautilus species. The earliest ammonites appeared during the Devonian, and the last species vanished in the Cretaceous–Paleogene extinction event. Ammonites are excellent index fossils, and linking the rock layer in which a particular species or genus is found to specific geologic time periods is often possible. Their fossil shells usually take the form of planispirals, although some helically spiraled and nonspiraled forms have been found. The name "ammonite", from which the scientific term is derived, was inspired by the spiral shape of their fossilized shells, which somewhat resemble tightly coiled rams' horns.
Acerca de Ammonite
A paleontologist sells fossils to tourists to support her sick mother. Her life changes immensely after being offered a new job. The film was written and directed by Francis Lee.
Los logros de Ammonite
The movie premiered at the 2020 Toronto International Film Festival. Distribution was handled by Lionsgate and Transmission Films.
Principales datos que no sabías sobre Ammonite
Ammolite – a gemstone formed from fossil ammonite shells.. Belemnoidea - Belemnoids are an extinct group of marine cephalopod, very similar in many ways to the modern squid and closely related to the modern cuttlefish. Like them, the belemnoids possessed an ink sac, but, unlike the squid, they possessed ten arms of roughly equal length, and no tentacles.. Coleoidea - Subclass Coleoidea, or Dibranchiata, is the grouping of cephalopods containing all the various taxa popularly thought of as"soft-bodied" or"shell-less," i.e., octopus, squid and cuttlefish.. Fossils and the geologic timescale - The geologic time scale is a system of chronological dating that classifies geological strata in time. It is used by geologists, paleontologists, and other Earth scientists to describe the timing and relationships of events in geologic history.. Nautiloidea - Nautiloids are a large and diverse group of marine cephalopods belonging to the subclass Nautiloidea that began in the Late Cambrian and are represented today by the living Nautilus and Allonautilus.. Ammonites.. Mollusc subclasses.. Devonian first appearances.. Taxa named by Karl Alfred Ritter von Zittel.. Maastrichtian extinctions.
Información más reciente sobre Ammonite actualizada el 28 de Julio, 2021.
