Question: What dynasty was Irarum's successor, mentioned on a stone tablet, the ruler of?

Context paragraphs:
Tablet of Shamash: The Tablet of Shamash is a stone tablet recovered from the ancient Babylonian city of Sippar in southern Iraq in 1881; it is now a major piece in the British Museum's ancient Middle East collection.  It is dated to the reign of King Nabu-apla-iddina ca. 888 – 855 BC.

Ibranum: Ibranum ("fl. " Late 3rd millennium BCE) was the 14th Gutian ruler of the Gutian Dynasty of Sumer mentioned on the ""Sumerian King List"" ("SKL").  According to the "SKL": Ibranum was the successor of Irarum.  Hablum then succeeded Ibranum (likewise according to the "SKL".)

Hurrian foundation pegs: The Hurrian foundation pegs, also known as the Urkish lions, are twin copper foundation pegs each in the shape of a lion that probably came from the ancient city of Urkesh (modern Tell Mozan) in Syria.  The pegs were placed at the foundation of the temple of Nergal in the city of Urkesh as mentioned in the cuneiform inscriptions on them.  The inscription on the two pegs and the associated stone tablet is the oldest known text in the Hurrian language.  One of the lions is now housed, along with its limestone tablet, in the Musée du Louvre in Paris.  The second lion is on display at the Metropolitan Museum of Art in New York.

Giant's Ring: The Giant's Ring is a henge monument at Ballynahatty, near Shaw's Bridge, Belfast, Northern Ireland.  It was originally preserved by Viscount Dungannon.  The inscribed stone tablet on the wall surrounding the site which details Vicount Dungannon's interest was carved by Belfast stonecarver Charles A Thompson about c.1919.  This is confirmed by his granddaughter Ann Aston as told to her by him and was shown the tablet in situ by him.

Cippus Perusinus: The Cippus Perusinus is a stone tablet discovered on the hill of San Marco, near Perugia, Italy, in 1822.  The tablet bears 46 lines of incised Etruscan text.  The cippus is assumed to be a text dedicating a legal contract between the Etruscan families of Velthina (from Perugia) and Afuna (from Chiusi), regarding the sharing or use of a property upon which there was a tomb belonging to the noble Velthinas.Turkish researcher Kazım Mirşan has claimed that he deciphered the text according to the tamga system.

Sumerian King List: The Sumerian King List is an ancient stone tablet originally recorded in the Sumerian language, listing kings of Sumer (ancient southern Iraq) from Sumerian and neighboring dynasties, their supposed reign lengths, and the locations of the kingship.  Kingship was seen as handed down by the gods, and could be transferred from one city to another, reflecting perceived hegemony in the region.  Throughout its Bronze Age existence, the document evolved into a political tool.  Its final and single attested version, dating to the Middle Bronze Age, aimed to legitimize Isin's claims to hegemony when Isin was vying for dominance with Larsa and other neighboring city-states in southern Mesopotamia.

Kankali Tila tablet of Sodasa: The Kankali Tila tablet of Sodasa, also called the Iryavati stone tablet, or Amohini ayagapata, is a large stone slab discovered in Kankali (area of Mathura) which mentions the rule of the Northern Satraps ruler Sodasa in Mathura.  The tablet in the State Museum Lucknow (room J.1).

Humac tablet: The Humac tablet (, ) is an Old Slavic epigraph in Cyrillic in the form of a stone tablet, believed to be variously dated to between the 10th and 12th century, being one of the oldest Serbo-Croatian preserved inscriptions.

La-erabum: La-erabum or Lasirab ("fl. " Late 3rd millennium BCE) was the 12th Gutian ruler of the Gutian Dynasty of Sumer mentioned on the ""Sumerian King List"" ("SKL").  According to the "SKL": La-erabum was the successor of Apilkin.  Irarum then succeeded La-erabum (likewise according to the "SKL".)

Irarum: Irarum ("fl. " Late 3rd millennium BCE) was the 13th Gutian ruler of the Gutian Dynasty of Sumer mentioned on the ""Sumerian King List"" ("SKL").  According to the "SKL": Irarum was the successor of La-erabum.  Ibranum then succeeded Irarum (likewise according to the "SKL".)

Supporting paragraphs: Ibranum Sumerian King List
Answer: Gutian Dynasty of Sumer