-
Heterostraci (Ancient Gr****, ἕτερος+ὄστρακον "those [with] a
different s****" [-i is pl. of -us]) is an
extinct subclass of pteraspidomorph, ostracoderm...
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Astraspida Eriptychiida Heterostraci see below↓...
-
David K.
Elliott &
Michael A.
Petriello (2011). "New
poraspids (Agnatha,
Heterostraci) from the
Early Devonian of the
western United States".
Journal of Vertebrate...
- Phylum:
Chordata Infraphylum:
Agnatha class: †Pteraspidomorpha Subclass: †
Heterostraci Order: †Pteraspidiformes Family: †Protaspididae Genus: †Protaspis Bryant...
- Phylum:
Chordata Infraphylum:
Agnatha class: †Pteraspidomorpha Subclass: †
Heterostraci Order: †Pteraspidiformes Genus: †Astraspis Walcott, 1892 Type species...
- 2013
Genus †Sacabambaspis Gagnier,
Blieck & Rodrico, 1986
Astraspida Heterostraci Janvier,
Philippe (1997)
Arandaspida The Tree of Life Web Project. Haaramo...
-
nouvelle espèce et
analyse morpho-fonctionnelle du
genre Doryaspis White (
Heterostraci) du Dévonien du Spitsberg".
Geobios (in French). 38 (2): 257–268. doi:10...
- Vietnam. Superficially,
their morphology appears more
similar to that of
Heterostraci than Osteostraci,
there being currently no
evidence that the galeaspids...
- ; Lenz, A. C. (1972). "A New
Upper Silurian Species of
Vernonaspis (
Heterostraci) from
Yukon Territory, Canada".
Journal of Paleontology. 46 (3): 415–420...
- amphiaspid." Lundgren, Mette, and
Henning Blom. "Phylogenetic
relationships of the
cyathaspidids (
Heterostraci)." GFF 135.1 (2013): 74-84. v t e v t e...
