Everything Dinosaur has commissioned a Jaekelopterus scale drawing.  The drawing is to be used in a fact sheet on this remarkable, giant arthropod.  Two species have been assigned to the Jaekelopterus genus.  These are J. rhenaniae (Jaekel, 1914) and J. howelli (Kjellesvig-Waering and Størmer, 1952).  The scale drawing is a representative of Jaekelopterus rhenaniae, which is estimated to have had a body length of 2.3 to 2.6 metres. As such, this taxon is one of the largest arthropods known to science.

Jaekelopterus howelli is known from more than two dozen specimens. It was much smaller than J. rhenaniae. At around eighty centimetres long it was more typical of pterygotid eurypterids.

Jaekelopterus scale drawing.

A Jaekelopterus scale drawing. The scale drawing represents the species Jaekelopterus rhenaniae. Based on the remains of a partial claw (chelicera) it is estimated to have had a body length of around 2.3 to 2.6 metres. With the narrow and long chelicerae extended, the total length of this arthropod has been postulated to exceed 3 metres. Picture credit: Everything Dinosaur.

Picture credit: Everything Dinosaur

To read an Everything Dinosaur blog post about the scientific description of J. rhenaniae: Claws! A Giant Eurypterid from the Early Devonian.

Jaekelopterus Scale Drawing

The Jaekelopterus scale drawing is going to be used in a sea scorpion fact sheet.  This fact sheet will be sent out with sales of the new for 2025 CollectA Deluxe Jaekelopterus model.

CollectA Deluxe Jaekelopterus model in dorsal view.

The stunning 1:20 scale CollectA Deluxe Jaekelopterus rhenaniae model. Picture credit: Everything Dinosaur.

Picture credit: Everything Dinosaur

The CollectA Deluxe Jaekelopterus is in 1:20 scale.  The model measures an impressive sixteen centimetre long.  It has captured a jawless fish.  It is likely that this giant arthropod hunted early vertebrates.

To view the range of CollectA Deluxe figures in stock at Everything Dinosaur: CollectA Deluxe Prehistoric Animal Figures.

Sea scorpions in the Pterygotidae family have similar body plans (bauplan). A partial fossil claw (chelicera) found in a quarry in western Germany and assigned to J. rhenaniae measures over thirty-six centimetres long. If it were complete the chelicera would be around forty-five centimetres in length. When this chelicera is scaled up in comparison with other pterygotids a total body length of estimate of 2.3 metres to 2.6 metres is calculated for Jaekelopterus rhenaniae.

Mike from Everything Dinosaur confirmed that he was looking forward to having this exciting figure in stock.

Visit the Everything Dinosaur website: Everything Dinosaur.