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Class of chordates
Galeaspida (from Latin, 'Helmet shields') is an extinct taxon of jawless marine and freshwater fish. The name is derived from galea, the Latin word for
Galeaspida
Gill-bearing non-tetrapod aquatic vertebrates
(118 species: hagfish, lampreys) ? †Thelodonti, †Conodonta, †Anaspida †Galeaspida †Osteostraci Jawed †Placodermi ? †Acanthodii Chondrichthyes (>1,100 species:
Fish
Phylum of animals having a dorsal nerve cord
Myxini (hagfish) Hyperoartia (lampreys) Pteraspidomorphi † Thelodonti † Galeaspida † "Cephalaspidomorphi" (paraphyletic) Pituriaspida † Osteostraci † Gnathostomata
Chordate
Paraphyletic infraphylum of fish
included †Anaspidomorphi †Conodonta Cyclostomi (hagfish and lampreys) †Galeaspida †Myllokunmingiida? †Metaspriggina? †Nuucichthys? †Osteostraci †Pituriaspida
Agnatha
Genus of fishes
braincase with those of jawless fish, such as the Osteostraci and the Galeaspida, strongly suggest that B. stensioi, and also the antiarchs, are basal
Brindabellaspis
†Conodonta (conodonts) Class †Cephalaspidomorphi (early jawless fish) Clade †Galeaspida Clade †Pituriaspida Clade †Osteostraci Infraphylum Gnathostomata (jawed
Taxonomy_of_fish
Subclass of fishes
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Elasmobranchii
Extinct genus of trilobites
and Iran. It was named as a new genus in 1975. In 2025, a member of the Galeaspida was given the same genus name ("Deanaspis" longpingi), with a replacement
Deanaspis
Extinct class of jawless fishes
all ostracoderms and the gnathostomes. Other ostracoderms, such as the Galeaspida are now known to have a paired olfactory organ. Current phylogenetic analysis
Pteraspidomorpha
Extinct subclass of jawless fishes
their maximum parsimony analysis is shown below: Astraspidida Thelodonti Galeaspida Osteostraci Lepidaspis Sansom, Robert S.; Randle, Emma; Donoghue, Philip
Heterostraci
Class of lobe-finned fishes
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Coelacanth
Geologic formation in China
Wang, Pingli; Gai, Zhikun (15 May 2020). "A new genus of sinogaleaspids (Galeaspida, stem-Gnathostomata) from the Silurian Period in Jiangxi, China". PeerJ
Xikeng_Formation
Subphylum of chordates
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Lancelet
Infraphylum of vertebrates
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Gnathostomata
Extinct class of jawless fishes
include only groups more clearly related to the Osteostraci, such as Galeaspida and potentially the Pituriaspida. Also following the latter definition
Cephalaspidomorphi
Clade of lobe-finned fish
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Sarcopterygii
Diverse clade of vertebrate animals
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Osteichthyes
Origin and diversification of fish through geologic time
fish) ?†Thelodonti (jawless fish with scales) unnamed ?†Anaspida unnamed †Galeaspida (jawless fish with bone head shields) unnamed ?†Pituriaspida (armoured
Evolution_of_fish
Extinct paraphyletic class of fishes
†Osteostraci †Galeaspida Gnathostomata †Antiarchi †Brindabellaspida †Brindabellaspis †Romundina †Rhenanida †Jagorina †Gemuendina †Petalichthyida †Arthrodira
Placoderm
Armored jawless fish of the Paleozoic
periods to the present day. †Galeaspida (extinct) Galeaspida ('helmet-shields') have massive bone shield on the head. Galeaspida lived in shallow, fresh water
Ostracoderm
Class of ray-finned bony fishes
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Actinopterygii
Extinct genus of primitive chordates
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Pikaia
Clade of vertebrates
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Rhipidistia
Extinct genus of chordates
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Zhongxiniscus
Class of jawed cartilaginous fish
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Chondrichthyes
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Lists_of_prehistoric_fish
Extinct agnathan chordates resembling eels
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Conodont
Genus of Silurian jawless fish
classification Kingdom: Animalia Phylum: Chordata Infraphylum: Agnatha Class: †Galeaspida Order: †Eugaleaspidiformes Family: †Tujiaaspidae Genus: †Tujiaaspis Gai
Tujiaaspis
Early Devonian genus of placoderm fish
Cyclostomata Osteostraci Galeaspida Antiarchi Brindabellaspis Romundina Arthrodira Entelognathus Ptyctodontida Gnathostomata
Romundina
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
List of prehistoric cartilaginous fish genera
List_of_prehistoric_cartilaginous_fish_genera
Extinct genus of jawless fishes
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Haikouichthys
Family of fishes
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Snailfish
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
List of prehistoric bony fish genera
List_of_prehistoric_bony_fish_genera
Cartilaginous fish in the order Chimaeriformes
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Chimaera
Geologic formation in China
Junqing; Gai, Zhikun; Zhu, Min (2005). "A NEW SPECIES OF MACROTHYRASPIS (GALEASPIDA, AGNATHA) FROM WENSHAN, YUNNAN, CHINA". Vertebrata PalAsiatica. 43 (4)
Posongchong_Formation
Extinct genus of jawless fish
when Min Zhu and Zhikun Gai would perform a major phylogenic analysis of Galeaspida in 2007 which would place the genus along with the later described genus
Zhaotongaspis
Extinct class of jawless fishes
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Thelodonti
Gai, Z.-K. (2026). "Asioaspis, a new genus of Polybranchiaspiformes (Galeaspida, stem-gnathostomes) from the Lower Devonian of Yunnan, China". Vertebrata
2026_in_paleoichthyology
Clade of ray-finned fishes
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Cladistia
Genus of galeaspid vertebrates
classification Kingdom: Animalia Phylum: Chordata Infraphylum: Agnatha Class: †Galeaspida Order: †Huananaspidiformes Family: †Huananaspidae Subfamily: †Macrothyraspinae
Lungmenshanaspis
Extinct genus of jawless vertebrates
Jia; Zhi-Kun Gai (2012). "A new genus of eugaleaspidiforms (Agnatha: Galeaspida) from the Ludlow, Silurian of Qujing, Yunnan, Southwestern China" (PDF)
Dunyu
Extinct genus of tetrapodomorphs
biotas in China. This being a high diversity in the jawless fish group Galeaspida along with early Placoderms along with lobe-finned fish. Lu, Jing; Zhu
Tungsenia
Extinct genus of jawless vertebrates
classification Kingdom: Animalia Phylum: Chordata Infraphylum: Agnatha Class: †Galeaspida Order: †Eugaleaspidiformes Genus: †Shuyu Gai et al., 2011 Species †S.
Shuyu
Division or infraclass of fishes
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Teleost
Extinct class of jawless fishes
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Osteostraci
Extinct genus of jawless fish
Gai, Z.-K. (2026). "Asioaspis, a new genus of Polybranchiaspiformes (Galeaspida, stem-gnathostomes) from the Lower Devonian of Yunnan, China". Vertebrata
Asioaspis
Extinct genus of chordates
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Cathaymyrus
Extinct order of fishes
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Acanthodiformes
Cambrian fossil chordate
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Yunnanozoon
Geologic formation in China
December 2021). "Qushiaspis , a new genus of gantarostrataspid fish (galeaspida, stem-gnathostomata) from the Lower Devonian of Yunnan, China". Historical
Xujiachong_Formation
Extinct genus of jawless fishes
Liu, Y H; Zhu, M; Gai, Z K; Lu, L (2015). 盔甲鱼亚纲 Tarlo, 1967 [Subclass Galeaspida Tarlo, 1967]. In Zhu, M (ed.). 《中国古脊椎动物志》第一卷 鱼类 第一册（总第一册）无颌类 [Palaeovertebrata
Duyunolepis
Group of extinct jawless vertebrates
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Anaspida
conodonts and echinoids appear. 440 Ma First agnathan fishes: Heterostraci, Galeaspida, and Pituriaspida. 420 Ma Earliest ray-finned fishes, trigonotarbid arachnids
Timeline_of_life
Extinct family of jawless fishes
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Pituriaspida
Extinct genus of jawless fishes
(2018-09-19). Peng, Zuogang (ed.). "New polybranchiaspiform fishes (Agnatha: Galeaspida) from the Middle Palaeozoic of China and their ecomorphological implications"
Platylomaspis
Extinct genus of jawless fish
Wenjin; Zhu, Min (2018-09-19). "New polybranchiaspiform fishes (Agnatha: Galeaspida) from the Middle Palaeozoic of China and their ecomorphological implications"
Doryaspis
Extinct genus of fishes
Galeaspida Osteostraci Gnathostomata Antiarchi Brindabellaspis Romundina Jagorina Gemuendina Petalichthyida Arthrodira Ptyctodontida Qilinyu Entelognathus
Qilinyu
Extinct paraphyletic class of fishes
Galeaspida Osteostraci "Placodermi" Osteichthyes Total-group Chondrichthyes Tetanopsyrus Nerepisacanthus Ischnacanthus Poracanthodes Culmacanthus Uraniacanthus
Acanthodii
Extinct genus of jawed vertebrates
†Galeaspida †Osteostraci Gnathostomata †Antiarchi †Petalichthyida †Ptyctodontida †Rhenanida †Arthrodira †Janusiscus schultzei Osteichthyes (Bony fish and
Janusiscus
Superclass of jawless fishes
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Cyclostomi
Extinct order of bony fishes
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Onychodontiformes
Extinct genus of jawless fishes
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Drepanaspis
Extinct group of cartilaginous fishes
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Eugeneodontiformes
Extinct order of cartilaginous fishes
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Petalodontiformes
Extinct order of cartilaginous fish
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Iniopterygiformes
Extinct genus of eugaleaspidiform fish
Rui-Wen; Gong, Yi-Ming (16 February 2021). "The oldest eugaleaspiform (Galeaspida) from the Silurian Fentou Formation (Telychian, Llandovery) of Wuhan,
Jiangxialepis
Extinct order of jawless vertebrates
classification Kingdom: Animalia Phylum: Chordata Infraphylum: Agnatha Class: †Galeaspida Order: †Eugaleaspidiformes Lui, 1965 Families and Genera Anjiaspis Nochelaspis
Eugaleaspidiformes
Extinct galeaspid fish
classification Kingdom: Animalia Phylum: Chordata Infraphylum: Agnatha Class: †Galeaspida Order: †Huananaspidiformes Family: †Sanchaspididae Genus: †Sanchaspis
Sanchaspis
Extinct genus of fishes
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Stensioella
Extinct order of fishes
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Palaeoniscoid
Group of cartilaginous fish
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Holocephali
Lin, X.; Zan, C.; Gai, Z.; Zhu, M. (2025). "Deanaspis, a new genus of Galeaspida (jawless stem Gnathostomata) from the Silurian of Jiangxi, China, and
2025_in_paleoichthyology
Extinct order of cartilaginous fishes
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Ischnacanthiformes
Extinct group of elasmobranchs
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Phoebodontiformes
Subclass of fishes
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Chondrostei
Extinct order of chondrichthyans
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Hybodontiformes
Extinct genus of fishes
the ornamentation, Diploholcaspis is regarded as incertae sedis within Galeaspida. Only one species is assigned to the genus: D. daleensis. The holotype
Diploholcaspis
Extinct genus of Devonian jawless fish
v t e Galeaspida Kingdom: Animalia Clade: Bilateria Phylum: Chordata Subphylum: Vertebrata Infraphylum: Agnatha Basal Jiaoyu? Hayangaspididae Hayangaspis
Foxaspis
Meng, X.; Gai, Z. (2021). "Falxcornus, a new genus of Tridensaspidae (Galeaspida, stem-Gnathostomata) from the Lower Devonian in Qujing, Yunnan, China"
2021_in_paleoichthyology
Subclass of fishes
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Neopterygii
Extinct order of cartilaginous fishes
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Diplacanthiformes
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
List_of_placoderm_genera
Genus of Conodont
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Promissum
Extinct genus of jawless vertebrates
classification Kingdom: Animalia Phylum: Chordata Infraphylum: Agnatha Class: †Galeaspida Order: †Eugaleaspidiformes Family: †Yongdongaspididae Chen et al., 2022
Yongdongaspis
X.; Gai, Z. (2024). "New findings of Changxingaspis (Xiushuiaspidae, Galeaspida) from the Silurian of Tarim Basin and Zhejiang Province". Acta Geologica
2024_in_paleoichthyology
Extinct order of cartilaginous fishes
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Xenacanthiformes
Extinct genus of fishes
biotas in China. This being a high diversity in the jawless fish group Galeaspida along with early Placoderms and lobe-finned fish. Qiao, Tuo; Cui, Xindong;
Paleolophus
Extinct order of cartilaginous fishes
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Symmoriiformes
Extinct order of fishes
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Pycnodontiformes
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
List_of_acanthodian_genera
Extinct order of cartilaginous fishes
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Ctenacanthiformes
Extinct paraphyletic order of cartilaginous fishes
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Climatiiformes
Extinct genus of fishes
lirouyi. Janvier, P.; Phuong, T.H. (1999). "Les vertébrés (Placodermi, Galeaspida) du Dévonien inférieur de la coupe de Lung Cô-Mia Lé, province de Hà Giang
Minicrania
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
List_of_sarcopterygian_genera
Geological formation in Yunnan, China
(April 2022). "Xitunaspis, a new eugaleaspid fish (Eugaleaspiformes, Galeaspida) from the Lower Devonian of Qujing, Yunnan". Vertebrata PalAsiatica. doi:10
Xitun_Formation
Lian-Tao; Gai Zhi-Kun (2012). "A new genus of eugaleaspidiforms (Agnatha: Galeaspida) from the Ludlow, Silurian of Qujing, Yunnan, Southwestern China" (PDF)
2012_in_paleoichthyology
Li; Zhi-Kun Gai (2023). "New findings of Xiyuichthys (Xiushuiaspidae, Galeaspida) from the Silurian of Jiangxi Province and Tarim Basin". Vertebrata PalAsiatica
2019_in_paleoichthyology
-T.; Gai, Z.-K. (2023). "New findings of Xiyuichthys (Xiushuiaspidae, Galeaspida) from the Silurian of Jiangxi Province and Tarim Basin". Vertebrata PalAsiatica
2023_in_paleoichthyology
Shan, X.; Zhao, W.; Gai, Z. (2022). "A New Species of Jiangxialepis (Galeaspida) from the Lower Telychian (Silurian) of Jiangxi and its Biostratigraphic
2022_in_paleoichthyology
Extinct order of chordates
†Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci Jawed fish †Placoderms †Antiarchi †Arthrodira
Paraconodontida
GALEASPIDA
GALEASPIDA
GALEASPIDA
GALEASPIDA
Boy/Male
Gaelic
Guards the forest.
Girl/Female
Hindu, Indian
Sweet Sound
Boy/Male
American, Anglo, Australian, British, Christian, English, German, Teutonic
Spear Ruler; Powerful with the Spear; Spear Power; Grove of Holm Oaks
Girl/Female
American, Australian, British, English
God is Gracious; White; Fair and Smooth; Soft; Variant of Jenny which is a Diminutive of Jane and Jennifer
Boy/Male
Muslim
Commendable
Girl/Female
Tamil
Seven stars representing seven great saints
Female
English
English variant spelling of Spanish Alicia, ALLYCIA means "noble sort."
Girl/Female
Arabic, Muslim, Sindhi
Victorious; Supporter
Boy/Male
Celtic
From the fortress.
Boy/Male
Hindu, Indian, Jain
A Person Born in a Royal Family
GALEASPIDA
GALEASPIDA
GALEASPIDA
GALEASPIDA
GALEASPIDA