The Planimals of Sinirin: A Basic Guide
(Unranked): Diaphoretickes
(Unranked): SAR supergroup
Planimals (more properly referred to as zoophytes, but most people donât call them that outside of scientific discussions) are a kingdom of organisms which have traits associated with both plants and animals (although they are more closely related to plants). Most of them are heavily dependent on magic to survive. The vast majority of terrestrial species inhabit the continent of Ael.
Most planimals have cell membranes with cortical alveoli, although some groups have evolved cell walls. Similarly to their ancestors, they have two nuclei: the micronucleus (holds the DNA passed on to offspring) and macronucleus (actively regulates the cell and phenotype of the organism).
They have three types of plastids: chloroplasts, chromoplasts, and elaioplasts (clusters of which replace animal-like fat tissue). The latter two are convergently evolved with those of plants.
Autotrophic, mixotrophic, and heterotrophic planimals exist. The ones that photosynthesize use chlorophylls a and c.
All planimals are oogamous (produce gametes of different size / shape / motility). Some phyla have alternation of generations. Viviparity is rare. They do not produce flowers or fruit.
Planimals branched off from ciliates about 400 million years ago. They were exclusively aquatic until 250 million years ago, when the first terrestrial planimals came ashore on what is now the continent of Ael.
Planimals gained the ability to detect and make use of magic early on in their evolution. At some point, they began to use magic to supplement their naturally less-efficient biological processes, like photosynthesis. This allowed them to become more and more complex without changing any of their biological processes, which in turn made them more and more dependent on magic. Most modern-day planimals will die rapidly if deprived of it.
Tapetozoa (âcarpet animalsâ): Among the most basal extant planimals. Resemble gigantic amoebas or placozoans with a covering of thin but tough green skin. Both aquatic and terrestrial species exist. Notably, all species can survive just fine in low- or no-magic spaces.
Archodendrons (âruling treesâ): A clade resembling trees. A number of species produce small motile âseed/egg-podsâ which carry their contents to the nearest sperm-producing archodendron. (Their name comes from their seeming command over these pods.) Despite their appearance, they have animal-like flesh and blood (albeit in different colours - yellowish flesh and clear blood) underneath their âbarkâ.
Xylovertebrata (âwood-spinesâ): Vertebrate, including tetrapod, analogues. Their bones superficially resemble bamboo wood, hence the name. Alternation of generations is a common trait.
Florafoliognatha (âflower petal-jawsâ): The other vertebrate analogues, sort of. They have internal skeletons, but a number of traits reminiscent of arthropods: 3 - 5 sets of limbs, multiple sets of jaws, and ventral nerve cords. Out of all planimal phyla, they have the most heterotrophs and facultative autotrophs among their ranks. Those speciesâ lack of reliance on sunlight has allowed them to exploit new niches, like subterranean and deeper-sea habitats. They also have the most nocturnal species.