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Titanonarke megapterygia
Taxonomy
Titanonarke megapterygia was named by Marramà et al. (2018). Its type specimen is MCSNV IG.135576, a partial skeleton (nearly complete articulated skeleton in a single slab), and it is a 3D body fossil. Its type locality is Monte Postale, Monte Bolca (Museo di Storia Naturale di Verona collection), which is in a Ypresian carbonate limestone in Italy.
Synonymy list
| Year | Name and author |
|---|---|
| 2018 | Titanonarke megapterygia Marramà et al. p. 1205 figs. Fig. 17 |
| 2018 | Titanonarke megapterygia Marramà et al. p. 287 |
| 2019 | Titanonarke megapterygia Robin et al. p. 289 fig. 2B |
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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.
†Titanonarke megapterygia Marramà et al. 2018
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| G. Marramà et al. 2018 | yTitanonarke with large subcircular disc of length c. 53% SL and width 56% SL; precaudal tail c. 51% SL; 136 total vertebrae (27 trunk; 74 precaudal, 32 caudal); total tooth row count c. 32 (15 rows in the upper and 17 in the lower jaw); 35 total pectoral radials (12 propterygial, eight mesopterygial and 15 metapterygial); greatly enlarged single-lobed pelvic fins containing c. 19 basipterygial radials; width of pelvic fins c. 61% of disc width; anterior pelvic fin margin length c. 42% disc length; caudal fin with 41 radials (20 dorsal and 21 ventral). |
Measurements
No measurements are available
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| Source: c = class, subp = subphylum | |||||
| References: Carroll 1988, Wagner 2023 | |||||