1. Ahmed S, Pan B, Khan M M S S, Li G, Qasim M, Jadoon I A E, Zhu M. 2023. First discovery of the Cambrian Small Shelly Fossils from the Sirban Member of the Abbottabad Formation in Lesser Himalaya, North Pakistan and its biostratigraphic significance. J Stratigr, 47: 339–352
2. Alvaro J J, Ahlberg P, Babcock L E, Bordonaro O L, Choi D K, Cooper R A, Ergaliev G K, Gapp I W, Ghobadi Pour M, Hughes N C, Jago J B, Korovnikov I, Laurie J R, Lieberman B S, Paterson J R, Pegel T V, Popov L E, Rushton A W A, Sukhov S S, Franco Tortello M, Zhou Z, Zylinska A. 2013. Global Cambrian trilobite palaeobiogeography assessed using parsimony analysis of endemicity. In: Harper D, Servais T, eds. Early Palaeozoic Biogeography and Palaeogeography. London: Geological Society. 273–296
3. Ameri H. 2015. Peri-Gondwana late early-middle Cambrian trilobites from the Kuhbanan Formation in Dahu section, Kerman Province, Iran. Arab J Geosci, 8: 1467–1478
4. Ameri H, Zamani F. 2016. Biostratigraphy of the Peri-Gondwana Cambrian trilobite fauna (northern Kerman, Iran) and correlation with other countries. Historical Biol, 28: 331–346
5. Amthor J E, Grotzinger J P, Schröder S, Bowring S A, Ramezani J, Martin M W, Matter A. 2003. Extinction of Cloudina and Namacalathus at the Precambrian-Cambrian boundary in Oman. Geology, 31: 431–434