Poritubera

Poritubera or commonly known as (Sea) Sponges is Major tube-like animals that are basal group on phylogeny of Dominozoa. Poritubers are aquatic, simple, sessil (non-mobile), filter-feeding & very important in aquatic ecosystem, especially they build reefs among with Anthocoralia (corals) and algae. All sponges lacks Muscle, Nervous system, Gastrointestinal tract, Excretory system, they have porous body structure, different roles on each cells, phagocytosis, obtain oxygen, & remove waste, through choanocytes on their body. Sponges usually has their hole structures called, osculum, which they difuse waste into water & pump water. Most of them were asymmertical, some of them were symmertical. 

1010 to 800 million years ago...

852 million years ago...

Class: Allosponga

Order: Allospongiformes

Family: Allospongidæ

Allospongia is a enigmatic extinct sponge class found on northeastern Proxima and Neoaustrala. These big and long tubular or sac-like sponges also has body with similar trait of cnidogella and ktenogella. Geologically, these sponges has firstly appeared during 807 million years ago until 801 million years ago.

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Paraplasmaspongia is a extinct paraphyletic sponge group with snowflake-shaped spicules. This sponge group firstly appeared during 788.8 to 501.902 ± 0.024 million years ago, so these sponges went extinct due to worst mass extinction.

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Cribrispongia is a extinct filter-feeding sponge class group that has cup-shaped body with unique shapes depends on each species and their body is made of calcite that has rich-magnesium. Geologically, these sponges appeared during 779 million years ago until 756.6 million years ago.

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