Definition of Orthaster. Meaning of Orthaster. Synonyms of Orthaster

- Oligopygus Oolopygus Opechinus Opisopneustes O****aster Orbignyana Ornithaster Orthaster Orthocidaris Orthopsis Oustechnius Oviclypeus Ovulaster Ovulechinus Pachycidaris...
- Lambert, 1920 † Homoeaster Pomel, 1883 † Lambertiaster Gauthier, 1892 † Orthaster Moskvin, 1982 † Physaster Pomel, 1883 No subfamily Aeropsis Mortensen...
- †Orbitremites †Ornaticannula †Ornithaster †Orocystites †Orophocrinus †Orthaster †Orthocidaris †Orthocrinus †Orthogonocrinus †Orthopsis †Osculocystis †Ossicrinus...