Seike, K. et al. 2020. Crininicaminus giberti isp. nov.: Tubular trace fossil armored with crinoid stem plates from the Upper Permian Kamiyasse Formation, Northeastern Japan. Spanish Journal of Palaeontology. 29, 1 (jul. 2020), 45–50. DOI:https://doi.org/10.7203/sjp.29.1.17487.