I understand that that in the ancient Levant, two main writing system patterns were used by the different peoples of the region: Phoenician and Ancient North Arabian.
I further understand that both these writing system patterns came out of the Proto-Canaanite (Canaanitic) writing system pattern → which by itself came out of the Proto-Semite (Sinaitic) writing system pattern.
A writing system pattern which patterned the writing systems of the following polities (from north to south and east to west):
Kingdom of Ugarit Kingdom of Tyre | Kingdom of Aram-Damascus Kingdom of Israel | Kingdom of Ammon Kingdom of Judah | Kingdom of Moab Kingdom of Edom | Nabataean polities Other Canaanite polities
I grasp the writing system of Ugarit-Tyre (Phoenician) as a prototype of all of these almost identical kingdom writing systems because as far as I know, it is the one of which original texts where most commonly found by archaeologists in comparison to the very few texts found in Paleo Hebrew alphabet used in the kindgdoms of Israel and Judah, Ammonite letters, Moabite letters etc and Edomite is considered at least by one researcher as a dialect of Israeli-Judean Hebrew.
2. Ancient north Arabian
A writing system pattern which patterned the writing systems of the trans-Nabataean nomads moving between south Syria to north Arabian peninsula and patterned the following writing systems:
Safaitic Hismaic Thamudic Dadantic
I grasp Safaitic as a prototype because if I am not wrong it is almost identical to Hismaic and Thamudic and the most commonly found on petroglyphs, especially when comparing these to Dadantic which seems to me quite different.
How similar are the prototype writing systems of Ugarit-Tyre (Phoenician) and Safaitic, or at least, how similar are Proto-Canaanite (Canaanitic) and Safaitic?