George Poinar, Jr. (2000). Fossil onychophorans from Dominican and Baltic amber: Tertiapatus dominicanus n.g., n.sp. (Tertiapatidae n.fam.) and Succinipatopsis balticus n.g., n.sp. (Succinipatopsidae n.fam.) with a proposed classification of the subphylum Onychophora. Invertebrate Biology. 119 (1): 104—109. doi:10.1111/j.1744-7410.2000.tb00178.x. JSTOR3227105.
jstor.org
George Poinar, Jr. (2000). Fossil onychophorans from Dominican and Baltic amber: Tertiapatus dominicanus n.g., n.sp. (Tertiapatidae n.fam.) and Succinipatopsis balticus n.g., n.sp. (Succinipatopsidae n.fam.) with a proposed classification of the subphylum Onychophora. Invertebrate Biology. 119 (1): 104—109. doi:10.1111/j.1744-7410.2000.tb00178.x. JSTOR3227105.