- Kloc, G.J. (1997). "Evolutionary and
biogeographical patterns in the
Asteropyginae (Trilobita, Devonian) Delo, 1935".
Bulletin of the
American Museum of...
-
Canadiana 25. ISBN 1-897095-15-5.
Pierre Morzadec (2001). "Les
Trilobites Asteropyginae du Dévonien de l'Anti
Atlas (Maroc)". Palaeontographica.
Abteilung A...
-
Morzadec promoted Erbenochile to full
genus status and
moved it to
Asteropyginae, by
virtue of
having pygidial spines, a
character unknown in Odontochilinae...
-
middle part of the
exoskeleton (or thorax) has 11 segments. Like all
Asteropyginae,
Psychopyge has (in this case 5 pairs)
prominent spines (or lappets)...
- Kloc, G.J. (1997). "Evolutionary and
biogeographical patterns in the
Asteropyginae (Trilobita, Devonian) Delo, 1935".
Bulletin of the
American Museum of...
-
approximately 3 to 9 cm. Morzadec,
Pierre (1997-04-29). "Les
Trilobites Asteropyginae du Dévonien de l'Ougarta (Algérie)".
Palaeontographica Abteilung A (in...
- Kloc, G.J. (1997). "Evolutionary and
biogeographical patterns in the
Asteropyginae (Trilobita, Devonian) Delo, 1935".
Bulletin of the
American Museum of...
- Kloc,
Gerry (1997). "Evolutionary and
biogeographic patterns in the
Asteropyginae (Trilobita, Devonian)".
Bulletin of the
American Museum of
Natural History...
- Kloc, G.J. (1997). "Evolutionary and
biogeographic patterns in the
Asteropyginae (Trilobita, Devonian) Delo, 1935".
Bulletin of the
American Museum of...
- Kloc,
Gerald (1977). "Evolutionary and
Biogeographic Patterns in the
Asteropyginae (Trilobita, Devonian) Delo, 1935" (PDF).
Bulletin of the
American Museum...
