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Tretosternon

Osteichthyes

Taxonomy
Tretosternon was named by Owen (1842). Its type is Tretosternon punctatum.

It was assigned to Emydidae by Owen (1842); to Tretosterninae by Lydekker (1889); to Pleurosternidae by Delair (1958); to Helochelydrinae by Kuhn (1966); and to Dermatemydidae by Borsuk-Bialynicka and Mlynarski (1968), Mlynarski (1984), Carroll (1988).

Entered
by J. Alroy on 2003-01-23; modified by M. Carrano on 2017-11-07

Synonymy list
YearName and author
1842Tretosternon Owen p. 165
1889Tretosternum Lydekker pp. 137-138
1958Tretosternum Delair p. 49
1966Tretosternum Kuhn p. 25
1968Tretosternon Borsuk-Bialynicka and Mlynarski
1984Tretosternon Mlynarski
1988Tretosternon Carroll

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
classOsteichthyes
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
RankNameAuthor
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
subclassEureptilia()
—Romeriida
—Diapsida()
—Archosauromorpha(Huene 1946)
—ArchelosauriaCrawford 2015
—Pantestudines
—Testudinata(Oppel 1811)
—Helochelydridae()
genusTretosternon

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. †Tretosternon Owen 1842
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: planktonicp
Diet: suspension feederp
Created: 2017-04-17 15:16:03
Modified: 2017-04-17 15:16:03
Source: subc = subclass, c = class, subp = subphylum, p = phylum
References: Carroll 1988, Bambach et al. 2007, Kiessling 2004, Hendy et al. 2009

Age range: base of the Early/Lower Berriasian to the top of the Late/Upper Hauterivian or 143.10000 to 125.77000 Ma

Collections (5 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Berriasian - Middle Berriasian143.1 - 139.1United Kingdom (England) T. sp. (28401)
Early/Lower Berriasian - Middle Berriasian143.1 - 139.1France (Poitou-Charentes) Tretosternum sp. (61930)
Late/Upper Valanginian137.05 - 132.6United Kingdom (England) T. sp. (96621)
Late/Upper Hauterivian132.6 - 125.77United Kingdom (England) T. sp. (62637 119697)