Sao Khua sclerorhynchoid Temporal range:
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Scientific classification | |
Kingdom: | Animalia
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Phylum: | Chordata
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Class: | Chondrichthyes
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Superorder: | Batoidea
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Order: | Rajiformes
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Suborder: | †Sclerorhynchoidei
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Family: | incertae sedis
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The Sao Khua sclerorhynchoid is an unnamed genus and species of sclerorhynchoid from the Early Cretaceous Sao Khua Formation in Thailand. It is known from the tip of a rostral denticle that is deposited in the Sirindhorn Museum as SM 2012-1-021. The denticle has a single barb similar to Onchopristis, Onchosaurus, and Pucapristis, but is distinguished from all other genera by having a row of enameloid "droplets" on each side.[1] It is one of the earliest sclerorhynchoids, along with Celtipristis and Onchopristis which also appeared in the Barremian.[2]