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Tarkus squirei

Actinopteri - Lophiiformes - Ogcocephalidae

Taxonomy
Tarkus squirei was named by Carnevale and Pietsch (2011). Its type specimen is MCSNV T158/T159, a partial skeleton, and it is a 3D body fossil. Its type locality is Monte Bolca, Pesciara (FMNH collection), which is in a Ypresian lagoonal/restricted shallow subtidal limestone in Italy. It is the type species of Tarkus.

Synonymy list
YearName and author
2011Tarkus squirei Carnevale and Pietsch p. 462
2014Tarkus squirei Bannikov p. 26
2014Tarkus squirei Carnevale et al. p. 42

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
superclassActinopterygii()
classActinopteri()
subclassNeopterygii(Regan 1923)
—Teleosteomorpha
—Teleostei(Müller 1846)
—Osteoglossocephalai
RankNameAuthor
—ClupeocephalaPatterson and Rosen 1977
—Euteleosteomorpha
—NeoteleosteiRosen 1973
—Eurypterygia(Rosen 1973)
—Ctenosquamata
—Acanthomorphata(Rosen 1973)
—Euacanthomorphacea
—Percomorphaceae
—Percomorpharia
orderLophiiformes
suborderOgcocephaloidei
familyOgcocephalidae
genusTarkus
speciessquirei

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.

†Tarkus squirei Carnevale and Pietsch 2011
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Diagnosis
ReferenceDiagnosis
G. Carnevale and T. W. Pietsch 2011Tarkus is unique among ogcocephalids in having the body moderately depressed anteriorly; large disk nearly rounded in outline; thick and stout caudal peduncle; massive and dorso-ventrally depressed neurocranium; frontals folded medially to form a shallow groove for the illicium; teeth present on jaws and palate; 18–19 vertebrae; vertebral centra with slender elongate neural and haemal spines; neural and haemal spines of the penultimate vertebra greatly enlarged forming a thick and laterally compressed plate; epural elongate and slender; illicial bone pitted with two large and rounded ventral lobes plus a small median dorsal lobe; soft dorsal fin with broad base containing eight to ten rays; anal fin containing seven to nine rays; pectoral pedicels connected to the body wall by a membrane; pectoral fin contains 13 distally branched rays; body covered with thick, slightly overlapping tubercles of two different sizes and morphologies.