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Ophiopsis
Taxonomy
Ophiopsis was named by Agassiz (1834) [Sepkoski's age data: Tr Ladi J Tith-l Sepkoski's reference number: 2,718]. Its type is Ophiopsis procerus.
It was assigned to Macrosemiidae by Woodward (1895), Woodward (1918); to Ophiopsidae by Bartram (1975); to Ophiopsiidae by Bürgin (1995), Cartanyà (1999); and to Macrosemiiformes by Sepkoski (2002).
It was assigned to Macrosemiidae by Woodward (1895), Woodward (1918); to Ophiopsidae by Bartram (1975); to Ophiopsiidae by Bürgin (1995), Cartanyà (1999); and to Macrosemiiformes by Sepkoski (2002).
Species
Entered
by J. Sepkoski on 2003-01-23; modified by D. Sinopoli on 2026-06-01
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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. †Ophiopsis Agassiz 1834
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†Ophiopsis aequalis Wagner 1863
†Ophiopsis attenuata Wagner 1863
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Invalid names: Ophiopsis guigardi Thiollière 1873 [synonym], Ophiopsis macrodus Thiolliere 1873 [synonym]
†Ophiopsis bellottii Bassani 1886
†Ophiopsis breviceps Egerton 1852
†Ophiopsis lepersonni de Saint-Seine 1950
†Ophiopsis montsechensis Wenz 1968
†Ophiopsis muensteri Agassiz 1834
†Ophiopsis penicillata Agassiz 1843
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. S. Woodward 1918 | Trunk much elongated , and the dorsal margin only slightly arcuate ; head large or of moderate size . Marginal teeth acutely pointed . Notochord surrounded by delicate ring - vertebræ ; ribs ossified . Bifurcation of dorsal fin - rays variable ; fulcra present , comparatively stout at the base of the dorsal and caudal fins . Paired fins relatively large ; dorsal fin ordinarily extending about half the length of the back , high in front , low behind ; anal fin small and well forwards ; caudal fin forked . Scales covering the whole of the trunk , in regular series , united by peg - and - socket articulation , and often pectinated at the hinder border ; the scales of the middle of the flank scarcely deeper than broad , few of the ventral scales much broader than deep ; no enlarged ridge - scales | |
| A. W. H. Bartram 1975 | Small to medium sized ophiopsid fishes; skull roof narrow,constricted between the orbits; nasals curved ventrolaterally, rostral small and tubular; a few large supraorbitals; 3-4 large sub-orbitals; infraorbitals moderately deep; maxilla bearing small peg-like teeth and forming a pointed, laterally compressed medial process; nasal process of premaxilla vertical and facing laterally; mandible with long, slender, slightly curved dentigerous ramus and a moderately tall coronoid process; about 12 branchiostegal rays, gular about one-third of the length of the mandibles; vertebrae ossifying as complete rings throughout the length of the column including the ural region, diplospondylous in caudal region; centra composed of concentric auto- and chordacentra, the latter ossifying from dorsal and ventral centres; leading ray of pectoral fin reduced to splint-like hemitrichia; pelvic fin preceded by basal and fringing fulcra; upper edge of dorsal fin concave, leading ray preceded by basal and fringing fulcra; caudal fin bearing fulcra on dorsal edge only; dorsal and accessory lateral lines represented by pit organs |
Measurements
No measurements are available
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| Source: c = class, subp = subphylum, p = phylum | |||||
| References: Bambach et al. 2007, Kiessling 2004, Hendy et al. 2009, Carroll 1988 | |||||
Age range: base of the Illyrian to the top of the Late/Upper Aptian or 243.33000 to 113.20000 Ma
Collections (19 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Illyrian | Italy | Nothosomus bellottii (149323) O. sp. (278903) | |
| Jurassic | Congo-Kinshasa (Maniema) | O. lepersonni (279131) | |
| Bathonian | United Kingdom (England) | Pholidophorus flesherii (131982) | |
| Kimmeridgian | Germany | O. attenuata, O. tenuiserrata (131961) | |
| Kimmeridgian | France | O. attenuata (131960) | |
| Kimmeridgian - Tithonian | USA (Wyoming) | O. sp. (12816 39431) | |
| Late/Upper Kimmeridgian | Germany (Eastern Bavaria) | O. muensteri (187436) | |
| Late/Upper Kimmeridgian | Germany (Baden-Württemberg) | O. procera (154138) | |
| Early/Lower Tithonian | France (Provence-Alpes-Côte d'Azur) | O. sp. (35262) | |
| Early/Lower Tithonian | Germany | O. aequalis, O. procera (121197) | |
| Tithonian | USA (Wyoming) | O. sp. (39426 39427) | |
| Berriasian | United Kingdom (England) | O. breviceps (131980) O. penicillata, O. dorsalis (131852) | |
| Early/Lower Barremian | Spain (Cataluña) | O. montsechensis (85293) | |
| Barremian - Early/Lower Aptian | Belgium (Hainaut) | O. dorsalis, O. sp. (22645) | |
| Late/Upper Aptian | USA (Texas) | O. sp. (14408) |