My submission for phasse three of Lemuria community challenge by Joschua Knüppe. The Lemuriania spp. genus from Oligocene Lemuria became highly successful up to this point, diversifying into many niches and bodyplans all across lemuria.
One such group was the Erigosquamidae family, who developed an erect limb posture alongside a more sophisticated breathing system that allows them to Properly breath while running. From this family appeared the Longimembrum spp. species complex which shows a Ring Species complex…
The Red Runner Lizard (Longimembrum rubrocephalus)
Habitat: Hot desert, Savannah
Size: 1 meter long
Ecology: Opportunistic, mainly herbivorous
The Red Runner Lizards are the smallest members of the genus, they live in the southern portion of the Lemurian Hot Desert. Preferring the scarce leaves found in the desert and neighbouring regions, these animals will hunt invertebrates and smaller vertebrates whenever it has the chance, even eating carrion given the opportunity, some populations live in regions where the desert gives way to savannah, and will interbreed with the neighbouring L. viridis.
These animals live in harems composed of a dominant male and females, most groups don't surpass 10 individuals. Only the male develops the colorful head, meanwhile, both sexes have colorful dewlaps used for communication, these dewlaps can be raised or tucked under the neck with tendons.
The Green Runner Lizard (Longimembrum viridis)
Habitat: Savannah, Wollemia open woodland
Size: 1,20-1,40 meters long
Ecology: herbivorous, grazer and low browser
The adept grazers of the genus, these lizards inhabit the southeastern savannahs and open woodlands of Lemuria, living in small herds of up to 20 individuals lead by a dominant male who will defend the group from rivals and predators with powerful strikes of their whip-like tails. They hybridize with both L. rubrocephalus and L. larvatum where their ranges meet.
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The Orange masked Runner Lizard (Longimembrum larvatum)
Habitat: Savannah, Wollemia open woodland
Size: 1,30-1,50 meters long
Ecology: herbivorous, low browser
The Orange masked Runner Lizard is a dedicated browser of bushes and small trees, due to this, they tend to move mostly in an erect, bipedal posture. Rarely getting on all fours. They can hybridize with both L. viridis and L. hydricum where their ranges overlap.
The Marine Runner Lizard (Longimembrum hydricum)
Habitat: Seavannah
Size: 1,30-1,50 meters long
Ecology: herbivorous, Raft grass semi-specialist, bulk feeder.
The most deviant and extreme-end of the Runner lizard species spectrum. These lizards spend most of their life on, or near water, leisurely grazing on the vast expanses of the seavannah -an unique biome found in the shallow seas of Lemuria-, eating not only the raft grass but also smaller undergrowth species. They live in groups of up to 40 individuals, multiple dominant males share a harem. They are the heaviest of the genus, on land they prefer to move on all fours but will still go bipedal when watching out for predators, running away from them or fighting.
Their laterally flattened tails still hit hard on both terrestrial and aquatic predators.
They can hybridize with L. larvatum but it is rarer than all the other possible hybrids of the genus.