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Titanonarke megapterygia

Chondrichthyes - Torpediniformes - Narcinidae

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
YearName and author
2018Titanonarke megapterygia Marramà et al. p. 1205 figs. Fig. 17
2018Titanonarke megapterygia Marramà et al. p. 287
2019Titanonarke megapterygia Robin et al. p. 289 fig. 2B

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
classChondrichthyes
RankNameAuthor
infraclassElasmobranchii(Bonaparte 1838)
Euselachii()
NeoselachiiCompagno 1977
superorderBatomorphii
orderTorpediniformes
familyNarcinidaeGill 1862
genusTitanonarkede Carvalho 2010
speciesmegapterygia

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
ReferenceDiagnosis
G. Marramà et al. 2018yTitanonarke 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
Composition: phosphaticsubp
Environment: marinesubp
Locomotion: actively mobilec
Life habit: nektonicc
Diet: carnivorec
Created: 2004-08-17 13:49:23
Modified: 2009-12-13 03:31:01
Source: c = class, subp = subphylum
References: Carroll 1988, Wagner 2023

Age range: Ypresian or 56.00000 to 48.07000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Ypresian56.0 - 48.07Italy (Vicenze) Titanonarke megapterygia (type locality: 127545)