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Rhynchosauroides rectipes

Reptilia

Taxonomy
Rhynchosauroides rectipes was named by Beasley (1911) [named in Maidwell 1911]. It is a trace fossil. Its type locality is Daresbury Quarry, which is in an Anisian terrestrial sandstone in the Helsby Sandstone Formation of the United Kingdom. It is the type species of Rhynchosauroides.

Sister species lacking formal opinion data
R. brunswicki

Synonyms
  • Rhynchosauroides membranipes was named by Maidwell (1911). It is considered to be a form taxon. It is a trace fossil. Its type locality is Weston Point Quarry, which is in a Triassic terrestrial sandstone/claystone in the United Kingdom.

    It was synonymized subjectively with Rhynchosauroides rectipes by Haubold (1971).
Synonymy list
YearName and author
1911Rhynchosauroides rectipes Beasley
1911Rhynchosauroides membranipes Maidwell
1963Rhynchosauroides rectipes Kuhn p. 61
1966Rhynchosauroides rectipes Demathieu p. 483
1972Rhynchosauroides rectipes Demathieu and Haubold p. 804
2003Rhynchosauroides membranipes Tresise p. 136
2003Rhynchosauroides rectipes Tresise p. 136
2010Rhynchosauroides rectipes Klein et al. p. 8
2011Rhynchosauroides rectipes Klein et al. p. 226
2021Rhynchosauroides rectipes Klein and Lucas p. 81

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
RankNameAuthor
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
—Squamata()
—Episquamata
superfamilyLacertoideaCamp 1923
genusRhynchosauroidesMaidwell 1911
speciesrectipesBeasley 1911

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.

†Rhynchosauroides rectipes Beasley 1911
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Invalid names: Rhynchosauroides membranipes Maidwell 1911 [synonym]
Diagnosis
ReferenceDiagnosis
H. Klein et al. 2010Broad quadrupedal trackways. Manus positioned medially to the pes or being overstepped by the latter at normal gait. Depending on the velocity of movement, the pace angulation of the pes varies between 70◦ and 125◦. The pes is slender and digitigrade, the smaller manus more stout and plantigrade. Digits increase in length from I to IV, V is much shorter, I–IV can be curved inward. Drag marks of the tail occasionally present.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialuc
Locomotion: actively mobilec
Created: 2017-04-17 15:15:35
Modified: 2017-04-17 15:15:35
Source: c = class, subp = subphylum, uc = unranked clade
References: Hendy et al. 2009, Carroll 1988

Age range: base of the Anisian to the top of the Late/Upper Triassic or 247.20000 to 201.40000 Ma

Collections (4 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Triassic - Middle Triassic252.17 - 237.0United Kingdom (England) Rhynchosauroides rectipes (197340)
Anisian247.2 - 242.0United Kingdom (Wirral) Rhynchosauroides membranipes (197349)
Anisian247.2 - 242.0United Kingdom (England) Rhynchosauroides rectipes (type locality: 197296)
Late/Upper Triassic237.0 - 201.4United Kingdom (England) Rhynchosauroides rectipes, Rhynchosauroides membranipes (174686)