Glyphocyphidae is an extinct family of
sea urchin
Sea urchins or urchins () are echinoderms in the class (biology), class Echinoidea. About 950 species live on the seabed, inhabiting all oceans and depth zones from the intertidal zone to deep seas of . They typically have a globular body cove ...
s in the
class
Class, Classes, or The Class may refer to:
Common uses not otherwise categorized
* Class (biology), a taxonomic rank
* Class (knowledge representation), a collection of individuals or objects
* Class (philosophy), an analytical concept used d ...
Echinoidea
Sea urchins or urchins () are echinoderms in the class Echinoidea. About 950 species live on the seabed, inhabiting all oceans and depth zones from the intertidal zone to deep seas of . They typically have a globular body covered by a spiny ...
.
These slow-moving low-level epifaunal grazers lived from the
Cretaceous
The Cretaceous ( ) is a geological period that lasted from about 143.1 to 66 mya (unit), million years ago (Mya). It is the third and final period of the Mesozoic Era (geology), Era, as well as the longest. At around 77.1 million years, it is the ...
to the
Paleogene
The Paleogene Period ( ; also spelled Palaeogene or Palæogene) is a geologic period and system that spans 43 million years from the end of the Cretaceous Period Ma (million years ago) to the beginning of the Neogene Period Ma. It is the fir ...
periods (136.4 to 48.6 Ma).
[
]
Genera
*'' Ambipleurus'' Lambert, 1932
*'' Arachniopleurus'' Duncan & Sladen, 1882
*'' Dictyopleurus'' Duncan & Sladen, 1882
*''Echinopsis
''Echinopsis'' is a genus of Cactus, cacti native plant, native to South America, sometimes known as hedgehog cactus, sea-urchin cactus or Easter lily cactus. , there are about 20 accepted species, ranging from large and treelike types to small ...
''
*'' Glyphocyphus''
*'' Hemidiadema''
*'' Rachiosoma''
*'' Rhabdopleurus'' Cotteau, 1893
Biolib
/ref>
References
Valanginian first appearances
Paleogene extinctions
Prehistoric echinoderm families
{{paleo-echinoidea-stub