Psammosteidae is an extinct family of flattened, benthic heterostracan vertebrates that lived in marine and estuary environments in Europe, Russia & North...
2 KB (103 words) - 09:21, 1 March 2021
Mark-Kurik, E.Yu., Psammosteidy (Agnatha, Psammosteidae) devona SSSR (Psammosteids (Agnatha, Psammosteidae) from the Devonian of the USSR), Tallinn: Inst...
5 KB (454 words) - 02:10, 6 January 2024
Pycnolepis Pycnosteidae Tartuosteus Pycnosteus Psammolepididae Psammosteus Psammosteidae Crenosteus Elgaia Karelosteus Osteoplax Placosteus Psammosteus Psarkosteus...
9 KB (918 words) - 01:26, 29 August 2024
Pycnolepis Pycnosteidae Tartuosteus Pycnosteus Psammolepididae Psammosteus Psammosteidae Crenosteus Elgaia Karelosteus Osteoplax Placosteus Psammosteus Psarkosteus...
5 KB (430 words) - 11:33, 16 September 2024
Pycnolepis Pycnosteidae Tartuosteus Pycnosteus Psammolepididae Psammosteus Psammosteidae Crenosteus Elgaia Karelosteus Osteoplax Placosteus Psammosteus Psarkosteus...
5 KB (332 words) - 15:33, 22 November 2023
Pycnolepis Pycnosteidae Tartuosteus Pycnosteus Psammolepididae Psammosteus Psammosteidae Crenosteus Elgaia Karelosteus Osteoplax Placosteus Psammosteus Psarkosteus...
3 KB (250 words) - 08:59, 16 May 2024
grandis is estimated to have length over 50 cm (1.6 ft). Some members of Psammosteidae such as Obruchevia and Tartuosteus are estimated to reached up to 2 m...
386 KB (40,121 words) - 10:53, 16 September 2024
Pycnolepis Pycnosteidae Tartuosteus Pycnosteus Psammolepididae Psammosteus Psammosteidae Crenosteus Elgaia Karelosteus Osteoplax Placosteus Psammosteus Psarkosteus...
2 KB (106 words) - 14:52, 11 June 2023
Drepanaspis of Early Devonian Germany, which is either included in the family Psammosteidae, or placed within its own family, Drepanaspididae. If the late Silurian/Early...
2 KB (131 words) - 12:06, 20 August 2021
"Psammosteoidei", or as an order-level taxon as "Psammosteida", or as a family, "Psammosteidae". Anatomically, a typical psammosteid resembles a typical pteraspidid...
6 KB (623 words) - 12:39, 4 July 2023
Pycnolepis Pycnosteidae Tartuosteus Pycnosteus Psammolepididae Psammosteus Psammosteidae Crenosteus Elgaia Karelosteus Osteoplax Placosteus Psammosteus Psarkosteus...
5 KB (455 words) - 20:00, 30 August 2024
Pycnolepis Pycnosteidae Tartuosteus Pycnosteus Psammolepididae Psammosteus Psammosteidae Crenosteus Elgaia Karelosteus Osteoplax Placosteus Psammosteus Psarkosteus...
3 KB (259 words) - 02:01, 23 July 2024
paraphyletic within Pteraspidiformes, and thus, no longer valid, while Psammosteidae is now regarded as a separate subtaxon within Pteraspidiformes, "Psammosteida...
6 KB (517 words) - 17:40, 4 February 2024
†Pteraspidomorphi Subclass: †Heterostraci Order: †Pteraspidiformes Family: †Psammosteidae Genus: †Drepanaspis Type species Drepanaspis gemuendenensis Schluter...
21 KB (2,044 words) - 06:38, 19 August 2024
Pycnolepis Pycnosteidae Tartuosteus Pycnosteus Psammolepididae Psammosteus Psammosteidae Crenosteus Elgaia Karelosteus Osteoplax Placosteus Psammosteus Psarkosteus...
1 KB (39 words) - 10:30, 10 March 2023
et comb. nov Valid Glinskiy Devonian Estonia A member of the family Psammosteidae. The type species is "Tartuosteus" luhai Mark-Kurik (1965). Faberaspis...
137 KB (10,041 words) - 03:47, 2 September 2024
Valid Dec Devonian (Givetian) Skały Poland A member of the family Psammosteidae. The type species is P. mediocris. Rumporostralis Gen. et comb. et sp...
108 KB (7,305 words) - 07:45, 25 August 2024
Pycnolepis Pycnosteidae Tartuosteus Pycnosteus Psammolepididae Psammosteus Psammosteidae Crenosteus Elgaia Karelosteus Osteoplax Placosteus Psammosteus Psarkosteus...
2 KB (175 words) - 18:18, 25 August 2023
morpho-histological types of discrete micromeric elements in the family Psammosteidae". Estonian Journal of Earth Sciences. 66 (2): 59–76. doi:10.3176/earth...
107 KB (8,350 words) - 07:43, 20 August 2024