Definition of Echinoids. Meaning of Echinoids. Synonyms of Echinoids

- the Ordovician and Silurian periods of Estonia are famous for echinoids. Paleozoic echinoids probably inhabited relatively quiet waters. Because of their...
- spines. Later echinoids had more robust tests and fossilised well, usually with the spines detached from the test. Fossils of echinoids are common in...
- urchin lost its spines: Hydrodynamic forces and survivorship in three echinoids". The Journal of Experimental Biology. 199 (Pt 3): 717–29. doi:10.1242/jeb...
- coins lost by mermaids. Sand dollars diverged from the other irregular echinoids, namely the c****iduloids, during the early Jur****ic, with the first true...
- The Peedee Formation is a geologic formation in North and South Carolina. A marine deposit representing an inner neritic environment, named for exposures...
- Melonites is an extinct genus of sea urchin from the family Palaechinidae. Species belonging to this genus lived during the late Mississippian (Meramecian)...
- Irregularia is an extant infraclass of sea urchins that first appeared in the Lower Jur****ic. These particular sea urchins are distinguished from other...
- The Gnathostomata are a superorder of sea urchins, including the familiar sand dollars. Gnathostomatans are irregular in shape, but unlike other irregular...
- environments of the Pliocene epoch and the evolutionary history of echinoids. Universal Biological Indexer Books Geology Trifoss Dendraster Echinoids v t e...
- will lead to an increase in urchins closer to the sediment. Like other echinoids, members of the Echinothuriidae, namely those belonging to the genus Araeosoma...