Psammosteida also called as Psammosteoidei is a suborder of pteraspidid heterostracan agnathans. The psammosteids had broad, flattened bodies, suggesting...
2 KB (131 words) - 12:06, 20 August 2021
Semipodolaspis Protopteraspididae Protopteraspis Doryaspis Escharaspis Miltaspis Stegobranchiaspis Unkaraspis "Trygonaspis" Psammosteida Pteraspidoidei...
9 KB (918 words) - 11:55, 3 October 2024
Devonian of modern-day Europe. "Palaeos Vertebrates Pteraspidomorphi: Psammosteida (2)". palaeos.com. Retrieved 2024-09-03. Glinskiy, Vadim (2017). "Phylogenetic...
1 KB (62 words) - 04:11, 9 September 2024
belongs to the clade Drepanaspididae, a subdivision of the family Psammosteida. Psammosteida belongs to the order Pteraspidiformes and class Pteraspidomorphi...
21 KB (2,044 words) - 01:02, 27 September 2024
Semipodolaspis Protopteraspididae Protopteraspis Doryaspis Escharaspis Miltaspis Stegobranchiaspis Unkaraspis "Trygonaspis" Psammosteida Pteraspidoidei...
5 KB (430 words) - 11:33, 16 September 2024
eating small invertebrates which it knocked loose . "Pteraspidomorphi: Psammosteida (2): Guerichosteids, Pycnosteids, Psammosteids & Psammolepis". Palaeos...
1 KB (60 words) - 01:38, 6 September 2022
treated as a suborder, "Psammosteoidei", or as an order-level taxon as "Psammosteida", or as a family, "Psammosteidae". Anatomically, a typical psammosteid...
6 KB (623 words) - 12:39, 4 July 2023
Semipodolaspis Protopteraspididae Protopteraspis Doryaspis Escharaspis Miltaspis Stegobranchiaspis Unkaraspis "Trygonaspis" Psammosteida Pteraspidoidei...
5 KB (332 words) - 15:33, 22 November 2023
†Pteraspidomorphi Subclass: †Heterostraci Order: †Pteraspidiformes Suborder: †Psammosteida Family: †Psammosteidae Genera Drepanaspis Pycnosteus Psammolepis Schizosteus...
2 KB (103 words) - 09:21, 1 March 2021
Semipodolaspis Protopteraspididae Protopteraspis Doryaspis Escharaspis Miltaspis Stegobranchiaspis Unkaraspis "Trygonaspis" Psammosteida Pteraspidoidei...
3 KB (250 words) - 08:59, 16 May 2024
Semipodolaspis Protopteraspididae Protopteraspis Doryaspis Escharaspis Miltaspis Stegobranchiaspis Unkaraspis "Trygonaspis" Psammosteida Pteraspidoidei...
5 KB (455 words) - 06:55, 23 September 2024
Semipodolaspis Protopteraspididae Protopteraspis Doryaspis Escharaspis Miltaspis Stegobranchiaspis Unkaraspis "Trygonaspis" Psammosteida Pteraspidoidei...
3 KB (259 words) - 02:01, 23 July 2024
thought to represent a transitional form between the Pteraspididae and the Psammosteida, bearing the broad head shield shape of the latter, due to a more benthic...
8 KB (761 words) - 08:31, 18 June 2024
Psammosteidae is now regarded as a separate subtaxon within Pteraspidiformes, "Psammosteida," as the sister taxon of the most basal family, Anchipteraspidae. Pteraspididae...
6 KB (517 words) - 17:40, 4 February 2024
Semipodolaspis Protopteraspididae Protopteraspis Doryaspis Escharaspis Miltaspis Stegobranchiaspis Unkaraspis "Trygonaspis" Psammosteida Pteraspidoidei...
2 KB (106 words) - 14:52, 11 June 2023
to psammosteids, some authorities, such as Tarlo, place them within Psammosteida. Because the ornamentation on the plates and scales are very similar...
2 KB (178 words) - 21:13, 8 August 2023
Semipodolaspis Protopteraspididae Protopteraspis Doryaspis Escharaspis Miltaspis Stegobranchiaspis Unkaraspis "Trygonaspis" Psammosteida Pteraspidoidei...
1 KB (39 words) - 10:30, 10 March 2023
Semipodolaspis Protopteraspididae Protopteraspis Doryaspis Escharaspis Miltaspis Stegobranchiaspis Unkaraspis "Trygonaspis" Psammosteida Pteraspidoidei...
2 KB (175 words) - 18:18, 25 August 2023
Mark-Kurik, Elga; Daeschler, Edward B. (2004). "A revision of Obruchevia (Psammosteida: Heterostraci) and a description of a new obrucheviid from the Late Devonian...
50 KB (2,775 words) - 21:30, 3 September 2024
Valid Glinskiy in Glinskiy & Nilov Devonian (Frasnian) Andoma Formation Latvia Russia ( Leningrad Oblast Vologda Oblast) A member of Psammosteida....
107 KB (8,357 words) - 12:24, 14 October 2024