Traits taxon details
original description
Sha, J.-G. (1993). <em>Trigonioides</em> from Early Cretaceous Hekou Formation of Hekou Basin, Ninghua, Fujian, China, with special remarks on classification of Trigonioididae. <em>Acta Palaeontologica Sinica.</em> 32(3): 285-302. page(s): 290, 300 [details] Available for editors 
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