Fast Facts Edit

Type: Eurypterid
Diet: Carnivore
Size:  Estimated‭ about ‬3.2‭ ‬meters long from the head to the tip of the telson (end of the tail)
Protection status: Extinct
Named after Otto Jeakel,‭ ‬Jaekelopterus is currently the largest known eurypterid,‭ ‬even bigger than the more famous Pterygotus.‭ ‬Again this demonstrates how the arthropods grew to giant proportions which continue to remain unknown in today‭’‬s living arthropods.‭ ‬Jaekelopterus itself it thought to have been a freshwater species that possibly hunted other arthropods and possibly fish.

       The upper size estimate of Jaekelopterus was extrapolated by comparing the size of the chelicerae to other more complete specimens and then scaling up the size of the compared specimens to reveal the size.‭ ‬The problem with this method is that it is only as reliable as the similarity between the compared specimens,‭ ‬and caution needs to be exercised when using it.‭ ‬This caution was also reflected by the authors of the discovery,‭ ‬Simon Braddy and Markus Poschmann,‭ ‬who estimated the length of Jaekelopterus at‭ ‬2.5‭ ‬meters,‭ ‬even though comparison scaled it closer to‭ ‬3.2‭ ‬meters in length.

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