different between spatangid vs spatangoid
spatangid
English
Noun
spatangid (plural spatangids)
- (zoology) Any sea urchin in the family Spatangidae.
spatangid From the web:
spatangoid
English
Noun
spatangoid (plural spatangoids)
- (zoology) Any echinoderm of the order Spatangoida, of heart urchins.
- 1983, Ulrich Lehmann, Fossil Invertebrates, page 292,
- The enlarged rear interambulacrum on the oral side of holasteroids and spatangoids is known as the plastron.
- 2003, Gunther J. Eble, Developmental Morphospaces and Evolution, James P. Crutchfield, Peter Schuster (editors), Evolutionary Dynamics, page 47,
- Spatangoids constitute a monophyletic group of heart urchins that appears in the early Cretaceous (145 M.Y. ago) and ranges to the Recent.
- 2010, Kenichi Kanazawa, Adaptive evolution in Cenozoic spatangoid echinoids, Mike Reich, Joachim Reitner, Vanessa Roden, Ben Thuy (editors), Echinoderm Research 2010: 7th European Conference on Echinoderms, Göttingen, page 61,
- Oval tests with specific ventral morphology for efficient burrowing allowed spatangoids to burrow deeply in sand to avoid gastropod predation.
- 1983, Ulrich Lehmann, Fossil Invertebrates, page 292,
Synonyms
- (any species of Spatangoida): heart urchin
spatangoid From the web:
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