Budd, G. E.; Streng, M.; Daley, A. C.; Willman, S., eds. (2007). https://www.palass.org/sites/default/files/media/annual_meetings/2007/annual_meeting_2007_abstracts_programme.pdf (PDF). Programme with Abstracts. Palaeontological Association Annual Meeting. Vol. 51. Uppsala, Sweden. {{cite conference}}
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