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Published: 2022-11-20 14:33:59 +0000 UTC; Views: 732; Favourites: 7; Downloads: 0
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Description
The phylum Antitremata is a peculiar one. The basic bodyplan of these organisms consists of a bilaterally symmetric mantle shielded by a dorsal and a ventral valve, both made of apatite, with a stalk growing out of the back of one of the valves. In the most basal members, living in underground bodies of water and subglacial lakes, the stalk is covered in a tunicine (a material closely related to cellulose) cuticle and the mantle bears multiple lophophores supported by an arm-skeleton, made for filtering food particles out of water.
The Shellubim and the Zhor represent unique experiments of these clam-like organisms towards life on land. You can learn more about them here: hardeshur.blogspot.com/2022/07…