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Pygocephalus cooperi
Taxonomy
Pygocephalus cooperi was named by Huxley (1857). It is the type species of Pygocephalus. 
Synonyms
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Synonymy list
| Year | Name and author | 
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| 1857 | Pygocephalus cooperi Huxley | 
| 1879 | Necroscilla wilsoni Woodward p. 552 figs. Pl 26, fig 3 | 
| 1899 | Anthrapalaemon glaber Jones and Woodward p. 393 figs. Pl 15, fig 5 | 
| 1905 | Anthrapalaemon serratus Woodward p. 438 fig. 1 | 
| 1907 | Pygocephalus (Anthrapalaemon) parkeri Woodward p. 407 fig. 2 | 
| 1911 | Anthrapalaemon grossarti holti Woodward p. 365 fig. 1 | 
| 1930 | Pygocephalus cooperi Dix and Pringle p. 143 | 
| 1979 | Pygocephalus cooperi Schram p. 85 figs. 37-39a,b | 
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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.
 †Pygocephalus cooperi Huxley 1857
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  Invalid names: Anthrapalaemon glaber Jones and Woodward 1899 [synonym], Anthrapalaemon serratus Woodward 1905 [synonym], Necroscilla wilsoni Woodward 1879 [synonym], Pygocephalus (Anthrapalaemon) parkeri Woodward 1907 [synonym]
   †Anthrapalaemon grossarti holti Woodward 1911
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Reference: Aberhan 1992 | |||||
Age range: base of the Westphalian A to the top of the Westphalian B or 318.70000 to 314.60000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number | 
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| Westphalian A | United Kingdom (Lancashire) | Pygocephalus cooperi (172765) | |
| Westphalian B | United Kingdom (Scotland) | Anthrapalaemon glaber (216573) | |
| Westphalian B - Westphalian C | United Kingdom (England) | Necroscilla wilsoni (216793) |