Echinodermata (Echinoderms)
Class: Asteroidea
Order: Forcipulatida
Family: Heliasteridae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Heliaster solaris | Clark, 1920 | 24-rayed sunstar | 1983 or before | Galápagos Islands, Ecuador | Missing | Access |
Order: Paxillosida
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Dipsacaster sagaminus | Hayashi, 1973 | - | (rediscovered) | Japan | Rediscovered | Access |
Order: Valvatida
Family: Oreasteridae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Halityle regularis | Fisher, 1913 | - | (rediscovered) | Africa, Australia, Madagascar & Philippines | Rediscovered | Access |
Family: Poraniidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Patiriella littoralis | Dartnall, 1970 | Derwent River seastar | 1991 or 2004 | Tasmania, Australia | Missing or Extinct | Access |
Class: Echinoidea
Order: Camarodonta
Family: Temnopleuridae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Amblypneustes elevatus elevatus | (Hutton, 1872) | - | (rediscovered) | Australia & New Zealand | Rediscovered | Access |
Order: Cassiduloida
Family: Cassidulidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Cassidulus infidus | Mortensen 1948 | - | (rediscovered) | Bahia, Brazil | Rediscovered | Access |
Order: Clypeasteroida
Family: Clypeasteridae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Ammotrophus crassus | (Clark, 1938) | - | Mid-Holocene | Western Australia, Australia | Missing or Extinct | Access |
Order: Spatangoida
Family: Brissidae
—No subordinate taxa
Family: Loveniidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Breynia vredenburgi | Anderson, 1907 | - | (rediscovered) | Andaman Islands, India | Rediscovered | Access |
Class: Holothuroidea
Order: Dendrochirotida
Family: Ypsilothuriidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Ypsilocucumis californiae | Massin & Hendrickx, 2011 | - | (rediscovered) | western Mexico (including the Gulf of California) | Rediscovered | Access |
Order: Elasipodida
Family: Elpidiidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
|
Peniagone horrifer |
Théel, 1882 | - | (rediscovered) | Southern Indian Ocean | Rediscovered | Access |
|
Peniagone leander
|
Pawson & Foell, 1986 | - | (rediscovered) | Pacific Ocean (incl. Mariana Trench area) | Rediscovered | Access |
| Penilpidia ludwigi | (von Marenzeller, 1893) | Ludwig's sea cucumber | (rediscovered) | Mediterranean Sea | Rediscovered | Access |
Order: Molpadiida
Family: Caudinidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Hedingia mediterranea | (Bartolini Baldelli, 1914) | - | (rediscovered) | Mediterranean | Rediscovered | Access |
Statistics
| Conservation status | Number of taxa (in percentage) |
| Extinct | 0 |
| Missing | 1 (7.7%) |
| Extinct in the Wild | 0 |
| Possibly Extinct in the Wild | 0 |
| Globally Rediscovered | 10 (76.9%) |
| Rediscovered in the Wild | 0 |
| Hypothetical | 0 |
| Invalid | 0 |
| Erroneously listed | 0 |
| Uncertain status | 2 (15.4%) |
| Total | 13 |