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Ophiosmilax
Taxonomy
Ophiosmilax was named by Matsumoto (1915). It is extant.
It was assigned to Ophiobyrsinae by Matsumoto (1915), Spencer and Wright (1966), Jagt (2000), Storc (2004), Storc and Zitt (2008); and to Ophiobyrsidae by O'Hara et al. (2018).
It was assigned to Ophiobyrsinae by Matsumoto (1915), Spencer and Wright (1966), Jagt (2000), Storc (2004), Storc and Zitt (2008); and to Ophiobyrsidae by O'Hara et al. (2018).
Synonymy list
| Year | Name and author |
|---|---|
| 1915 | Ophiosmilax Matsumoto p. 50 |
| 1966 | Ophiosmilax Spencer and Wright p. U90 |
| 2000 | Ophiosmilax Jagt p. 7 |
| 2004 | Ophiosmilax Storc p. 396 |
| 2008 | Ophiosmilax Storc and Zitt p. 124 |
| 2018 | Ophiosmilax O'Hara et al. p. 12 |
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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.
G. Ophiosmilax Matsumoto 1915
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†Ophiosmilax alternatus Kutscher and Jagt 2000
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Invalid names: Transspondylus bubnoffi Müller 1950 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| H. Matsumoto 1915 | Disk and arms covered by a thick skin. Radial shields very rudimentary and insignificant. Single oral papilla on either side and two or three dental papilla at the apex of each jaw. Teeth in a single vertical series. Teeth and papillae all alike, stout, stumpy, conspicuously thorny at tips. Second oral tentacle pores open outside oral slits, each provided with a thorny, stumpy papilla, which arises from adoral shield. Dorsal arm plates absent, while the lateral arm plates are subventral, so that the dorsal side of the arms is merely covered by a naked skin. Ventral arm plates welldeveloped, in contact with each other. Vertebrae short and very stout. Vertebral articulation streptospondyline, the articular peg being entirely ibsent. Arm spines few, converted into compound hooks. No tentacle scale. |
Measurements
No measurements are available
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| Source: c = class, p = phylum | |||||
| References: Aberhan 1992, Aberhan et al. 2004 | |||||
Age range: base of the Early/Lower Turonian to the top of the Maastrichtian or 93.90000 to 66.00000 Ma
Collections (12 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Cenomanian - Early/Lower Turonian | Czech Republic | O. alternatus, Transspondylus bubnoffi (58092) | |
| Early/Lower Turonian | Czech Republic | O. alternatus (62041) O. alternatus, Transspondylus bubnoffi (62042 62043) | |
| Late/Upper Turonian | Czech Republic | O. alternatus (99235) | |
| Middle Turonian | Tunisia | O. alternatus (58091) | |
| Late/Upper Campanian | Belgium (Liege) | O. alternatus (32147) | |
| Late/Upper Campanian | Germany (Sachsen-Anhalt) | O. alternatus (32024) | |
| Early/Lower Maastrichtian | Germany (Mecklenburg-Vorpommern) | O. alternatus (32022) | |
| Early/Lower Maastrichtian | Belgium (Liege) | O. alternatus (32148 32151) | |
| Early/Lower Maastrichtian - Maastrichtian | Denmark | O. alternatus (32023) |