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Cephalaspidae
Taxonomy
Cephalaspidae was named by Huxley (1861). Its type is Cephalaspis. It was considered unknown by Moy-Thomas and Mile (1971).
It was assigned to Chondrostei by Huxley (1861); to Osteostraci by Hay (1902), Bryant (1933); to Cephalaspida by Gardiner (1966); to Cephalaspidida by Moy-Thomas and Mile (1971); and to Cephalaspidiens by Janvier (1985).
It was assigned to Chondrostei by Huxley (1861); to Osteostraci by Hay (1902), Bryant (1933); to Cephalaspida by Gardiner (1966); to Cephalaspidida by Moy-Thomas and Mile (1971); and to Cephalaspidiens by Janvier (1985).
Subtaxa
Synonymy list
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: subp = subphylum, p = phylum | |||||
| References: Carroll 1988, Kiessling 2004 | |||||
Age range: Early/Lower Lochkovian or 419.62000 to 416.80000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Lochkovian | United Kingdom | Cephalaspidae indet. (238794 238795) |