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Richards Spur II

The Richards Spur locality in Oklahoma contains one of the most diverse Lower Permian faunas in the world. The fossils are preserved in caves and fissures that formed in Ordovician limestone and form part of a upland fauna rich in amphibians and reptiles. Being completely terrestrial no fish or freshwater shark fossils are known, making it almost unique in the Permian fossil record. The fossils are either preserved in clay that can easily be dissolved in water, or hard limestone that has to be dissolved in acid. All of the fossils on this page had to undergo the lengthy acid treatment but are wonderfully preserved.

  • Sillerpeton permianum

    Sillerpeton Vertebra

    • A tiny 1 to 2 mm long vertebra of this phlegothontid amphibian. Rarely seen in the fossil record.

    • £
    • In stock
  • Cacops sp.

    Cacops collection in display case

    • An instant collection of rare Cacops amphibian fossils. 
    • Included in each collection are an intercentrum, 2 pleuracentra, a toe bone and tooth. 
    • Known from only 3 localities in the Lower Permian of North America. 
    • Display case meaures 4x6 cm.
    • £
    • In stock
  • Cacops jaw

    • Two pieces of Cacops jaw with teeth in a 3cm display case. Nice details to the teeth.
    • £
    • In stock
  • Cacops tooth pair

    • Two good Cacops teeth housed in a 3cm gem jar (similar to those shown). 
    • All are complete and often show the distinct grooving or carinae
    • £
    • In stock
  • Cacops foot plastic cast

    • A resin plastic cast of a complete Cacops foot. Measures ~10 cm long.
    • £
    • In stock
  • Opisthodontosaurus carrolli

    Opisthodontosaurus small jaw section. 

    • These used to be identified as Euryodus primus, but are now known to be a completely new reptile. 
    • Each is a nice, small jaw section with a couple of teeth. 
    • Specimens are housed in a 3cm gem jar.
    • £
    • In stock
  • Opisthodontosaurus jaw section & loose teeth

    • A larger jaw section plus isolated teeth of this recently described reptile. Housed in a 3cm gem jar.

    • £
    • In stock
  • Mycterosaurus longiceps

    Mycterosaurus intercentrum, caudal & thoracic vertebrae

    • Complete centra of both a caudal and thoracic vertebra and intercentrum from this small, rare pelycosaur. 
    • Housed in a 3cm gem jar. Specimens measure ~8 to 10mm long.
    • £
    • In stock
  • Mycterosaurus tail display

    • A nice composite tail of this rare pelycosaur. 
    • All the bones are genuine and are arranged as they would have been in life. 
    • Display case measures ~7x5 cm.

    • £
    • In stock
  • Mycterosaurus limb bone pair

    • A repaired and restored femur and tibiaof this pelycosaur. 
    • The mid shaft section of each bone has been restored. 
    • Housed in a 7x5 cm display case. Rare.
    • £
    • In stock
  • Mycterosaurus serrated tooth

    • One of the highly serrated teeth from the middle or posterior part of the jaw. 
    • Small teeth but lovely preservation. Measure 3 to 4 mm

    • £
    • In stock
  • Mycterosaurus complete foot with claws

    • A rare pelycosaur foot with all claws composited from material found in a single fissure. All the bones and claws are genuine fossils. Housed in a Riker Mount, the foot measures ~10 cm.
    • We also have individual toe bones available for sale. Please contact us if they are of interest.
    • £
    • In stock
  • Mycterosaurus collection in display case

    • An instant collection of uncommon pelycosaur fossils, all housed in a 4x6 cm display case. 
    • Includes a partial limb bone, vertebra, toe bone and tooth
    • £
    • In stock
  • Mycterosaurus vertebra with neural spine

    • An essentially complete vertebra including processes and neural spine. 
    • Specimens measure ~2 cm and come housed in a 3 cm gem jar. 
    • Rare specimens as the majority found are missing the spines and processes.
    • £
    • In stock
  • Mycterosaurus Jaw with 2 serrated teeth

    • A rare jaw section of this pelycosaur bearing 2 serrated teeth. 
    • Excellent specimens of this apex predator of the Richards Spur locality. 
    • Specimens housed in 3cm gem jars. Each measures ~1 cm
    • £
    • In stock
  • Mycterosaurus Jaw with 3 serrated teeth

    • A rare jaw section of this pelycosaur bearing 3 serrated teeth. 
    • Excellent specimens of this apex predator of the Richards Spur locality. 
    • Specimens housed in 3cm gem jars. Each measures ~1 to 2 cm

    • £
    • In stock
  • Captorhinus sp.

    Traditionally all Captorhinus material from Richards Spur was assigned to C. aguti. However, in recent years the number of species has increased with at least 4 species now being recognised: C. aguti, C. magnus, C. kierani and one unnamed species. The differences in the species are all determined by the dentition with post cranial material being indistinguishable. C. aguti is still by far the most common species but there is a possibility material assigned to this species may belong to one of the rarer forms.

    Captorhinus "aguti" Collection

    • A diverse collection of elements from this Captorhinid reptile. 
    • Includes vertebrae, skull plates, jaw sections, teeth, limb bones etc. 
    • Housed in a ~8x6 cm display case.

    • £
    • In stock
  • Captorhinus foot with claws

    • A complete foot with claws from Captorhinus. 
    • Measures ~3cm long. 
    • All bones genuine fossils.
    • £
    • In stock
  • Captorhinus jaw pair

    • Two good sections of jaw showing the multi tooth rows typical of C. aguti. 
    • Each measures ~1cm and bears numerous teeth.
    • £
    • In stock
  • Captorhinus resin skull

    • A very nice plastic resin cast of a complete Captorhinus skull.  
    • Skull found by long time collector and friend Roger Van Cleef in the 1970's. 
    • Skull measures ~6 cm long.

    • £
    • In stock

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