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Galeaspida ✝
Source Data |
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Rank | class (PBDB) | ||||||||||||||||||||||||||||||
Taxonomy (PBDB) | Life : Animalia : Chordata : Galeaspida | ||||||||||||||||||||||||||||||
Classification (PBDB,GBIF) |
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Opinions (PBDB) |
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Status (PBDB) | extinct | ||||||||||||||||||||||||||||||
Taxon Size (PBDB) | 146 | ||||||||||||||||||||||||||||||
First Recorded Appearance | 439 - 433 Ma Silurian | ||||||||||||||||||||||||||||||
Last Recorded Appearance | 419 - 411 Ma Early/Lower Devonian | ||||||||||||||||||||||||||||||
Environment | marine (based on Vertebrata) | ||||||||||||||||||||||||||||||
Motility | actively mobile (based on Chordata) | ||||||||||||||||||||||||||||||
Taphonomy | phosphatic (based on Vertebrata) | ||||||||||||||||||||||||||||||
Primary Reference (PBDB) | Y. H. Liu. 1965. New Devonian agnathans from Yunnan. Vertebrata PalAsiatica 9(2):125-134 |
Fossil Distribution
Subtaxa
Name | Status | Common Name(s) | Fossil Occurrences | Oldest | Youngest |
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Polybranchiaspidida ✝ superorder | listed (PBDB) | 22 | 433 Ma Silurian | 419 Ma Early/Lower Devonian | |
Eugaleaspidiformes ✝ order | listed (PBDB) | 10 | 433 Ma Silurian | 419 Ma Early/Lower Devonian | |
Dayongaspidae ✝ family | listed (PBDB) | 1 | 439 Ma Silurian | 439 Ma Silurian | |
Hanyangaspidae ✝ family | listed (PBDB) | 7 | 439 Ma Silurian | 423 Ma Silurian | |
Xiushuiaspidae ✝ family | listed (PBDB) | 4 | 433 Ma Silurian | 433 Ma Silurian | |
Hyperaspis ✝ genus | listed (PBDB) | 1 | 419 Ma Early/Lower Devonian | 419 Ma Early/Lower Devonian | |
Microphymaspis ✝ genus | listed (PBDB) | ||||
Pseudoduyunaspis ✝ genus | listed (PBDB) | 1 | 439 Ma Silurian | 439 Ma Silurian |
Synonymy List
Year | Name and Author |
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1965 | Galeaspida Liu |
References
Liu Y. H. (1965) New Devonian agnathans from Yunnan, Vertebrata PalAsiatica 9 2, 125-134 |
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!