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#plesiosaur

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Replied to Stella Angelika Ludwig
Adam S. Smith

@stellaludwig Not a cast, the actual fossil bones. I recently co-wrote a short paper about how the fore and hind limbs in this specimen are transposed: link.springer.com/article/10.1

SpringerLinkHistorically transposed flipper pairs in a mounted plesiosaurian skeleton - PalZPlesiosaurians evolved four wing-like flippers that are morphologically similar to each other and were most likely used in underwater flight. Plesiosaurians have been the subject of a long research history as well as a long history of misidentifications and misinterpretations, especially transposition of parts of or entire fore- and hind flippers. We identified the transposed fore- and hind flippers in a mounted Cryptoclidus eurymerus specimen (GPIT-PV-30092) on display in the Paleontological Collection of Tübingen University. It is likely that the fore- and hind flippers were accidentally transposed when the skeleton was mounted, although, amongst plesiosaurians, the fore- and hind flippers of Cryptoclidus eurymerus are some of the least similar-looking ones. This occurred either during a remounting of the skeleton from a free-standing armature on the ground to a freely “flying” skeleton hanging from the ceiling, or after a research project conducted on the specimen in the 1970s. We summarize osteological characteristics that can be used to correctly identify fore- and hind flippers of this species, and for better future assessment of the plesiosaurian locomotory system.
#plesiosaur#paleontology
Stella Angelika Ludwig

Happy #fossilfriday!

This is a cast of Cryptoclidus at the palaeontological collection of the University of Tübingen.

These Jurassic marine reptiles were perfectly adapted to their environment, possessing four hydrofoil-like flippers that allowed them to efficiently ‘fly’ through the water.

Life reconstruction based on the mounted skeleton (IGPB R 324) on display at the Goldfuß-Museum in Bonn. ⚒️

#science#paleontology#fossils
Sven Sachs

I wrote a little contribution about Microcleidus macropterus, a plesiosauroid plesiosaur from the Lower Jurassic of Yorkshire (United Kingdom) The specimen is on display at the Sedgwick Museum of Earth Sciences in Cambridge. I had the pleasure to examine the fossil last year.
sachspal.de/microcleidus-macro

www.sachspal.deSachs Vertebrate Palaeontology Research - Microcleidus macropterus, a plesiosaur from the Yorkshire LiasMicrocleidus macropterus is a plesiosauroid plesiosaur from the Lower Toarcian (Yorkshire Lias, Lower Jurassic) Alum Shale Member of the Whitby Mudstone Formation. The taxon is based on a complete and articulated skeleton discovered in 1841 at Saltwick near Whitby in Yorkshire, UK (Smith & Lomax
#science#paleontology#fossil
The Dinosaur Dave

This weeks #Lego #FossilFriday is #Penny the #Polycotylid #Plesiosaur

In 1989, Mr Ian Ievers was feeding cattle near his homestead on Marathon Station, near Richmond Queensland. He found a rostrum in a dried creek bank. He and his brother removed some soil and found the rest of the skull and some neck vertebra.

Later that year, a team from the Queensland Museum excavated the fossils. It turned out to be one of the most complete fossils of a polycotylid in Australia.

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