- and Wyoming.
Species of
Cardipeltis superficially resemble those of
cyathaspids in
having a
flattened body and
indistinct head
covered by a large, broad...
-
resemble their relatives, the
cyathaspids, though,
researchers place the
tolypelepids as a
sister group to the
cyathaspids and the
pteraspidids (and both...
-
member being Athenaegis), is
regarded as
being a
sister group of the
Cyathaspids and Pteraspidids,
while the
Early Devonian Lepidaspis is
regarded as...
-
Rapportserie 74. 1–190. . Blieck, Alain, and
Natascha Heintz. 1983. The
Cyathaspids of the Red Bay
Group (Lower Devonian) of Spitsbergen.
Polar Research...
- It is most
closely related to Pionaspis. Elliott, D. K. (2013). "A new
cyathaspid (Agnatha, Heterostraci) with an
articulated oral
cover from the Late Silurian...
-
Ctenaspis (Ctenaspis kaieri) is an
extinct genus of
heterostracan cyathaspid agnathans from the
early Devonian of Canada,
Norway and
Russia 416.0 to 412...
-
shared traits are
identified between the two groups. The
ctenaspidid cyathaspid, Boothiaspis, of
Lower Devonian Canada, was
initially described as an...
- Tarlo, Acta
Palaeontologica Polonica, 1962 Elliott, D. K. (2013). "A new
cyathaspid (Agnatha, Heterostraci) with an
articulated oral
cover from the Late Silurian...
- K. Elliott;
Linda S. L****iter;
Alain Blieck (2018). "A new
species of
cyathaspid (Vertebrata: Pteraspidomorphi: Heterostraci) from the
Lower Devonian Drake...
- 1080/11035897.2012.762549. S2CID 128570339.
David K.
Elliott (2013). "A new
cyathaspid (Agnatha, Heterostraci) with an
articulated oral
cover from the Late Silurian...
