The following chart displays the links between the ordination and teachers’ lineages as explored in Sects & Sectarianism. Below I place brief reminders of the main details as I understand them. In the chart, thick lines indicate direct ordination links from preceptor to student, while thin lines indicate personal connections other than ordination lineage. Note that in the case of Mahinda there are several ordination teachers. This is because Moggaliputtatissa was the upajjhāya, Mahādeva was the ācariya for the pabbajjā, and Majjhantika was the ācariya for the upasampadā.
Kassapa > Ānanda > Majjhantika > Śāṇakavāsin > Upagupta: The standard list of five ‘Masters of the Dhamma’, found commonly throughout the Mūlasarvāstivādin literature, but also in the Mahāsaṅghika. Note that Majjhantika appears both here and later, as a student of Moggaliputatissa in the time of Aśoka. It seems certain that his name should belong in the later period, and has been inserted in the northern list before Śāṇakavāsin in order to authorize the Kaśmīr lineage, of which he was the founder.
Purṇa > Mecaka > Katyāyanīputra: Elders of the Sarvāstivādin lineage, representing the emergent sectarian phase. Katyāyanīputra is the author of the Jñānaprasthāna, the major work of the Sarvāstivādin Abhidharma.
Dharmagupta: Also known as Yonaka Dhammarakkhita. The Aśokan missionary to the west (Aparantaka and the Greek realms). Probably the founder of the Dharmaguptaka school.
Majjhantika: Missionary to Kaśmīr. Subdued the nāgas and established the school later known as the Vaibhāṣika Sarvāstivādins.
Mahādeva: Missionary to Mahiṁsaka (Andhra?). Possibly the founder of the Mahāśāsaka school. Possibly confused with the later Mahādeva II, a leader of the Mahāsaṅghikas in Andhra a couple of generations after Aśoka.
Mahinda: Son of Aśoka. Leader of mission to Sri Lanka.
Tissa: Brother of Aśoka, first royal to ordain.