- Devonian-aged
family that
contains the stereotypical, torpedo-shaped
pteraspidids, such as the type genus, Pteraspis, and its
close relatives Errivaspis...
- 'wing' or 'fin' and Gr****: ἀσπίς aspís 'shield') is an
extinct genus of
pteraspidid heterostracan jawless fish. It
lived from the
Lochkovian to Eifelian...
-
Rhinopteraspis is an
extinct genus of
pteraspidid heterostracan agnathan. "Rhinopteraspis
cornubica (McCoy), with
notes on the
classification and evolution...
- If
Weigeltaspis is not a
psammosteid pteraspidid, then the
Anchipteraspidids are the oldest-most
known pteraspidid heterostracans, with
three genera from...
-
Podolaspis is an
extinct genus of
pteraspidid heterostracan agnathan which existed during the
early Devonian period. It was
originally described by Zych...
-
Psammosteida also
called as
Psammosteoidei is a
suborder of
pteraspidid heterostracan agnathans. The
psammosteids had broad,
flattened bodies, suggesting...
-
Blieckaspis priscillae is a
pteraspidid heterostracan agnathan from the
Middle Devonian of
North America.
Blieckaspis priscillae was
originally described...
-
Althaspis is an
extinct genus of
pteraspidid heterostracan agnathan.
Fossils are
found in
Early Devonian-aged
marine strata of
Europe "Althaspis". Paleobiology...
-
Protopteraspididae is an
extinct family of
pteraspidid heterostracan agnathans.
Fossils of the
various genera are
found in
early Devonian-aged marine...
-
Protaspis is an
extinct genus of
pteraspidid heterostracan agnathan which lived during the
Early Devonian of the
United States, with
fossils found in...
