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Pradesuridae
Taxonomy
Pradesuridae was named by Spencer (1951). It is not extant. Its type is Pradesura.
It was assigned to Eophiuricae by Spencer (1951), Lehmann (1957), Owen (1965); and to Proturina by Spencer and Wright (1966), Boczarowski (2001), Blake (2013).
It was assigned to Eophiuricae by Spencer (1951), Lehmann (1957), Owen (1965); and to Proturina by Spencer and Wright (1966), Boczarowski (2001), Blake (2013).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1951 | Pradesuridae Spencer p. 111 |
| 1957 | Pradesuridae Lehmann p. 20 |
| 1965 | Pradesuridae Owen p. 547 |
| 1966 | Pradesuridae Spencer and Wright p. U80 |
| 2001 | Pradesuridae Boczarowski p. 8 |
| 2013 | Pradesuridae Blake p. 367 |
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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.
Fm. †Pradesuridae Spencer 1951
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G. †Stuertzura Gregory 1897
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†Sturtzura brisingoides Gregory 1889
†Sturtzura leptosomoides Chapman 1907
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. K. Spencer 1951 | Outer lateralia broad, with a single row of spines placed at an angle to the arm axis |
Measurements
No measurements are available
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| Source: subp = subphylum, p = phylum | |||||
| References: Aberhan 1992, Bambach et al. 2007 | |||||
Age range: Early/Lower Emsian or 410.62000 to 399.50000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Emsian | Germany | Erinaceaster tenuispinosus (26904) |