Echinoidea - Irregularia - Nucleolitidae
Alternative combinations: Ananchytes cruciferus, Echinobrissus crucifer, Nucleolites crucifer, Nucleolites cruciferus, Pygorhynchus crucifer, Rhopostoma cruciferum, Trematopygus crucifer, Trematopygus cruciferus
Synonyms: Nucleolites analis Agassiz 1857, Plagiochasma analis Agassiz 1857, Pyrina freucheni Desor 1926, Trematopygus analis dOrbigny 1855
Belongs to Plagiochasma according to A. Kroh 2001
See also Clark and Twitchell 1915, Cooke 1942 and Cooke 1959
Sister taxa: Plagiochasma lammersmaxi, Plagiochasma olfersii, Plagiochasma orientalis
Type specimens:
- Plagiochasma cruciferum: ANSP 1464, a test
- Nucleolites analis:
- Pyrina freucheni:
- Trematopygus analis:
Ecology: epifaunal grazer-deposit feeder
Distribution:
• Paleocene of Austria (1 collection), Denmark (1), United States (10: Alabama, Georgia, New Jersey)
Total: 12 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.