Alternative spelling: Tropiometracea
Parent taxon: Comatulidina according to H. Hess and C. G. Messing 2011
See also Baumiller and Fordyce 2018, Eagle 2009 and Shibata and Oji 2007
Sister taxa: Antedonoidea, Atelecrinoidea, Atopocrinidae, Comatulidia, Jaekelometridae, Mariametroidea, Microcrinus, Notocrinoidea, Paracomatulacea, Paracomatuloidea, Procomaster, Solanocrinitoidea, Uintacrinoidea
Subtaxa: Asterometridae Calometridae Charitometridae Conometridae Maorimetridae Pseudoconometridae Pterocomidae Ptilometridae Thalassometridae Tropiometridae
Type: Tropiometra
Ecology: facultatively mobile intermediate-level epifaunal suspension feeder
Distribution:
• Miocene of Japan (1 collection)
• Waitakian of New Zealand (4)
• Eocene of the United Kingdom (1)
• Cretaceous to Paleogene of the Netherlands (1)
• Cretaceous of Belgium (5), Germany (1), the Netherlands (3), the United Kingdom (1)
• Jurassic of France (3), Germany (2)
Total: 22 collections including 38 occurrences