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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Gavinia
Taxonomy
Species
Entered
by P. Wagner on 2015-09-25; modified by P. Wagner on 2015-09-26
Synonymy list
| Year | Name and author |
|---|---|
| 1999 | Gavinia Long p. 40 |
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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
| Reference | Diagnosis | |
|---|---|---|
| J. A. Long 1999 | Actinistian fish having a large, deep premaxilla; lateral rostral of equal length to the premaxilla; large dentary approximately 36-50% total mandible length; enlarged anterior coronoid developed as a symphysial tooth whorl; second coronoid much larger than anterior one; elongate cheek region composed mostly of large squamosal bone having two pit-line canal grooves; deep large operculum which has an anterodorsal margin that is strongly concave for contact with the squamosal bone; anal fin supported by a broadly expanded fin basal; caudal fin heterocercal with weakly-developed epicercal lobe; anterior trunk scales coarsely omamented with thicker, slightly wavy linear ridges in the anterior third of the exposed scale area, and continuing down the central axis of the scale; about 40-50% of scale area overlapped. Anterior bones of the skull and lower jaw omamented with coarse, closely-spaced tubercles; rest of dermal bones ornamented with wavy vermiform ridges. |
Measurements
No measurements are available
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| Source: c = class, subp = subphylum, p = phylum | |||||
| References: Carroll 1988, Kiessling 2004, Bambach et al. 2007, Hendy et al. 2009 | |||||
Age range: base of the Early/Lower Givetian to the top of the Late/Upper Givetian or 387.95000 to 382.31000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Givetian - Middle Givetian | Australia (New South Wales) | G. sp. (238202) | |
| Late/Upper Givetian | Australia (Victoria) | G. syntrips (173457 196710) |