-
carnivores lived in the
Ordovician period, from 488.3 to 443.7 Ma.
Hemibarrandia Panderia Fossils of this
family have been
found in the
Ordovician sediments...
- Vysocania, Wuchuanella, Zbirovia, Zdicella, Zetillaenus.
Panderiidae Hemibarrandia, Ottenbyaspis, Panderia, Pogrebovites.
Styginidae Alceste, Altaepeltis...
- Vysocania, Wuchuanella, Zbirovia, Zdicella, Zetillaenus.
Panderiidae Hemibarrandia, Ottenbyaspis, Panderia, Pogrebovites.
Styginidae Alceste, Altaepeltis...
- even be
within the group, with
Whittington (2003)
placing some
genera (
Hemibarrandia, Lakaspis,
Peraspis and Symphysurina) of the
asaphid family Nileidae...
-
Heliopyge (=Alcaldops)
Helmutia Helokybe Hemiarges (=Choneilobarges)
Hemibarrandia Hemicricometopus Hemikaolishania Hemirhodon Henadoparia Hentigia Heraspis...
