Definition of Order Spatangoida

1. Noun. Heart-shaped sea urchins.

Exact synonyms: Spatangoida
Generic synonyms: Animal Order
Group relationships: Class Echinoidea, Echinoidea
Member holonyms: Heart Urchin

Lexicographical Neighbors of Order Spatangoida

order Saurischia
order Sauropterygia
order Scandentia
order Sclerodermatales
order Scleroparei
order Scorpionida
order Scrophulariales
order Secotiales
order Selaginellales
order Siluriformes
order Siphonaptera
order Siphonophora
order Sirenia
order Solenichthyes
order Solenogastres
order Spatangoida (current term)
order Sphaeriales
order Sphaerocarpales
order Sphagnales
order Sphenisciformes
order Spirochaetales
order Squamata
order Stegocephalia
order Stereospondyli
order Stomatopoda
order Strigiformes
order Struthioniformes
order Synentognathi
order Taxales
order Temnospondyli

Literary usage of Order Spatangoida

Below you will find example usage of this term as found in modern and/or classical literature:

1. North American Index Fossils by Amadeus William Grabau, Hervey Woodburn Shimer (1910)
"order Spatangoida, 595. APPENDIX A. SUMMARY OF NORTH AMERICAN STRATIGRAPHY. TABLES OF GEOLOGICAL FORMATIONS 604 GENERAL TABLE OF GEOLOGICAL FORMATIONS 604 ..."

2. Circulars by Johns Hopkins University, Stanford University (1900)
"I did not meet with this species myself, but a handsome bleached test (65 x mm.) from Jamaica is in the Adams collection. Order: Spatangoida. ..."

3. Professional Paper by Geological Survey (U.S.) (1909)
"... by its less symmetrical star and by the anal pore being more distant from the margin. Order SPATANGOIDA. ..."

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