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Anomalocaris ("unlike other shrimp", or "abnormal shrimp") is an extinct genus of radiodont, an order of early-diverging stem-group marine arthropods.. It is best known from the type species A. canadensis, found in the Stephen Formation (particularly the Burgess Shale) of British Columbia, Canada.
Radiodonta is an extinct order of stem-group arthropods that was successful worldwide during the Cambrian period. Radiodonts are distinguished by their distinctive frontal appendages, which are morphologically diverse and were used for a variety of functions.
29 Anomalocaris size comparison. 1 comment. 30 Simurghia Skeletal. ... As for the size charts, ... I dont mean to be rude but there is a room for you to improve.
Anomalocaris was an aquatic apex predator, in the Cambrian. Its mouthparts are clearly predatory, and there were no larger animals in the seas at that time. [32] Carnivorous theropod dinosaurs including Allosaurus [33] and Tyrannosaurus [34] are theorized to have been apex predators, based on their size, morphology, and dietary needs.
Formerly referred to as "Anomalocaris" briggsi, it was placed in the new monotypic genus Echidnacaris in 2023. [1] It is only distantly related to true Anomalocaris, and is instead placed in the family Tamisiocarididae. [2] Echidnacaris is primarily known from its frontal appendages which had 13 podomeres. [1]
Laminacaris size diagram. The large frontal appendage is the most prominent and distinctive feature in Cambrian arthropods. [3] [4] The largest frontal appendage of Laminacaris (YKLP 13338) is around 28 cm (11 in) long, which would have belonged to an individual between 53.2–78.4 cm (20.9–30.9 in) long, based on proportion of Innovatiocaris (which is once treated as "Anomalocaris" saron). [5]
Schinderhannes bartelsi is a species of hurdiid radiodont (anomalocaridid), known from one specimen from the Lower Devonian Hunsrück Slates.Its discovery was astonishing because the latest definitive radiodonts were known only from the Early Ordovician, [1] at least 66 million years earlier than this taxon.
Discussing the size, the first para under "Description" says "Although paper also shows body length estimation of 56 cm (1.84 ft) for genus Anomalocaris, it is size estimation of A. saron which is no longer belong to genus Anomalocaris, and proportion is based on specimen of Innovatiocaris, so it is not suitable body length estimation for ...