 | Heterostraci (Ancient Greek, ἕτερος+ὄστρακον "those [with] a different shell" [-i is pl. of -us]) is an extinct subclass of pteraspidomorph, Ostracoderm... 6 KB (517 words) - 17:40, 4 February 2024 |
 | 2013 Genus †Sacabambaspis Gagnier, Blieck & Rodrico, 1986 Astraspida Heterostraci Janvier, Philippe (1997) Arandaspida The Tree of Life Web Project. Haaramo... 5 KB (430 words) - 18:23, 11 November 2023 |
 | Astraspida Eriptychiida Heterostraci see below↓... 9 KB (907 words) - 07:32, 25 April 2024 |
David K. Elliott & Michael A. Petriello (2011). "New poraspids (Agnatha, Heterostraci) from the Early Devonian of the western United States". Journal of Vertebrate... 1 KB (68 words) - 04:50, 30 July 2022 |
 | Goodrich, 1909 Type species Pteraspis rostrata Agassiz, 1835 Subgroups †Anatolepis †Arandaspida †Heterostracomorphi †Astraspida †Eriptychiida †Heterostraci... 5 KB (332 words) - 15:33, 22 November 2023 |
 | Astraspida Eriptychiida Heterostraci see below↓... 3 KB (250 words) - 02:57, 12 March 2024 |
 | Phylum: Chordata Infraphylum: Agnatha Class: †Pteraspidomorphi Subclass: †Heterostraci Order: †Pteraspidiformes Genus: †Astraspis Walcott, 1892 Type species... 3 KB (258 words) - 16:29, 28 January 2024 |
 | Vietnam. Superficially, their morphology appears more similar to that of Heterostraci than Osteostraci, there being currently no evidence that the galeaspids... 15 KB (1,274 words) - 21:35, 15 February 2024 |
 | species may have lived in fresh water. The taxon contains the subgroups Heterostraci, Astraspida, Arandaspida. †Thelodonti (extinct) Thelodonti (nipple teeth)... 42 KB (2,711 words) - 22:50, 6 May 2024 |
 | Lepidaspis (category Enigmatic Heterostraci taxa) Although it is regarded as a heterostracan, its exact placement within Heterostraci is regarded as incertae sedis, as the fact that it is currently impossible... 1 KB (116 words) - 21:13, 8 August 2023 |