Jaekelopterus is a genus of predatory eurypterid, a group of extinct aquatic arthropods. Fossils of Jaekelopterus have been discovered in deposits of Early Devonian age, from the Pragian and Emsian stages.

Its name is Jaekelopterus, and it is best known from the rocks of Rhineland in Germany. This spiky marine monster is known from remains of a claw discovered by two scientists from the University of Bristol.

The recent discovery of a 46 cm long claw (chelicera) of the pterygotid eurypterid (‘sea scorpion’) Jaekelopterus rhenaniae, from the Early ... The fossil record has yielded various gigantic arthropods, in contrast to their diminutive proportions today.

2016年4月18日 · 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 ...

2023年12月28日 · The pterygotid eurypterid Jaekelopterus (background), the largest ever arthropod, and the hibbertopterid eurypterid Cyrtoctenus (foreground) in comparison to the size of a (average British male) human alongside silhouettes of some of their eurypterid relatives. Image credit: Simon Powell.

Jaekelopterus rhenaniae is a species of Eurypterid (sea scorpion), which grew up to 2.5 meters long, making it the largest arthropod that ever lived. They were believed to be much smaller until the discovery of a 46cm claw (Braddy et al. 2008).

…eurypterids were small animals, although Jaekelopterus rhenaniae (also called Pterygotus rhenanius or P. buffaloenis), a species from the Silurian Period (about 444 to 416 million years ago) in North America, was the largest arthropod ever known; it reached a length of about 2.5 metres (8 feet). Similar in body plan…

2007年11月20日 · The recent discovery of a 46 cm long claw (chelicera) of the pterygotid eurypterid (‘sea scorpion’) Jaekelopterus rhenaniae, from the Early Devonian Willwerath Lagerstätte of Germany, reveals that this form attained a body length of approximately 2.5 m—almost half a metre longer than previous estimates of the group, and the largest ...

2007年11月21日 · The claw is from a sea scorpion (eurypterid) Jaekelopterus rhenaniae that lived between 460 and 255 million years ago.

2013年5月10日 · The two species of eurypterid are described as Jaekelopterus howelli (Kjellesvig-Waering and Størmer, 1952) and Strobilopterus proteus sp. nov. Phylogenetic analysis places them within the Pterygotidae and Strobilopteridae respectively, both families within the …