similar unique leg structure with the dingo. Jackson and Groves disagree with Wozencraft, and believe that this taxon does not closely resemble the dingo. Canis harappensis, Southern Asia The "Harappa dog" was originally described as Canis harappensis Prashad, 1936. The Indian zoologist Baini Prashad noted the remains of a dog that was discovered during excavations at Harappa, in modern Pakistan. The researchers collected a wide variety of ancient domestic animal remains which had been buried for 5,000 years. Also found was a dog skull; however, its location and depth was not recorded and its age is not known. It is described as being moderately large in size and with an elongated and pointed snout. It showed a close affinity with the Indian pariah dog; however, a comparison of skull morphology showed that the pariah dog skull was closer to the Indian jackal, but the Harappa dog was closer to the Indian wolf. It is described as being morphologically similar to Canis tenggerana from Java, and it had earlier been proposed that a population of early dogs had been more widespread across the region. Jackson and Groves disagree with Wozencraft, and believe that this taxon does not closely resemble the dingo. Archaeological evidence In 2020, an mtDNA study of ancient dog fossils from the Yellow River and Yangtze River basins of southern China showed that most of the ancient dogs fell within haplogroup A1b, as do the Australian dingoes and the pre-colonial dogs of the Pacific, but in low frequency in China today. The specimen from the Tianluoshan archaeological site, Zhejiang province dates to 7,000 YBP and is basal to the entire haplogroup A1b lineage. The dogs belonging to this haplogroup were once widely distributed in southern China, then dispersed through Southeast Asia into New Guinea and Oceania, but were replaced in China 2,000 YBP by dogs of other lineages. Analysis of dog coprolites from the early rice agricultural site of Tianluoshan 7,000 years ago indicates that their diet was largely plant-based, implying that these dogs associated with early human settlements. The oldest date for dog remains found in mainland Southeast Asia are from Vietnam dated 4,000 years before present (YBP), and in island southeast Asia from Timor-Leste at 3,075–2,921 YBP. The oldest dog remains from New Guinea are from Caution Bay near Port Moresby dated 2,702-2,573 YBP and the oldest from New Ireland are from Kamgot dated 3,300–3,000. The earliest