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Synaptichnium

Reptilia - Chirotheriidae

Synonymy list
YearName and author
1923Synaptichnium Nopcsa
1954Synaptichnium Baird p. 170
1958Synaptichnium Kuhn p. 20
1971Synaptichnium Haubold p. 53
1972Synaptichnium Demathieu and Haubold p. 804
1974Synaptichnium Ellenberger p. 113
1974Synaptichnium Gand p. 8
1974Synaptichnium Haubold p. 39
1989Synaptichnium Demathieu p. 202
2000Synaptichnium Ptaszynski p. 170
2005Synaptichnium Gand and Demathieu p. 726
2021Synaptichnium Klein and Lucas p. 38

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda
Reptiliomorpha
Anthracosauria
subclassAmphibiosauriaKuhn 1967
RankNameAuthor
Cotylosauria()
Amniota
Sauropsida
classReptilia
subclassEureptilia()
Romeriida
Diapsida()
Archosauromorpha(Huene 1946)
Crocopoda
ArchosauriformesGauthier 1986
Eucrocopoda
Archosauria()
Pseudosuchia(Zittel 1890)
familyChirotheriidaeAbel 1935
genusSynaptichniumNopcsa 1923

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. †Synaptichnium Nopcsa 1923
show all | hide all
Synaptichnium argantobrivense Demathieu and Gand 1981
Synaptichnium chirotherioides Ptaszynski 1990
Synaptichnium diabloensis Peabody 1948
Synaptichnium hildburghausense Lilienstern 1939
Synaptichnium kotanskii Ptaszynski 2000
Synaptichnium motutongense Ellenberger 1974
Synaptichnium priscum Demathieu 1970
Synaptichnium senkowiczowae Niedzwiedzki and Ptaszynski 2007
Diagnosis
ReferenceDiagnosis
H. Klein and S. G. Lucas 2021Moderately narrow trackways of a quadruped with a pace angulation that is only slightly larger than 160° (140° on average); imprints pentadactyl with strong outward rotation of the pes. Pes imprints with digits I–IV increasing in length and digit IV being longest or subequal with III; digit V more laterally than proximally positioned behind front digits, slender, elongate and straight or slightly curved outward and with oval basal pad. Manus more rounded, with digit III being longest. Ratio of manus:pes area relatively large for chirotheriids = 1:1.8, up to 1:3.7. (1:2.5 on average). Sharp claws on digits I–IV in both the pes and manus. Distinct rounded phalangeal and metatarsophalangeal pad traces.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Diet: carnivoresubo
Created: 2009-01-03 20:38:45
Modified: 2009-01-03 22:38:45
Source: subo = suborder, subc = subclass, c = class, subp = subphylum
References: Hendy et al. 2009, Benton 1983, Carroll 1988

Age range: base of the Olenekian to the top of the Sinemurian or 251.20000 to 190.80000 Ma

Collections (22 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Triassic252.17 - 247.2Morocco (Marrakech-Safi) S. sp. (199897 199898 199899 199900)
Early/Lower Triassic252.17 - 247.2United Kingdom (England) S. sp. (164930)
Spathian251.3 - 247.2USA (Arizona) Chirotherium diabloensis (95107)
Spathian251.3 - 247.2Poland (Swietoryzskie) S. kotanskii, S. chirotherioides, S. senkowiczowae (118063)
Olenekian251.2 - 247.2Morocco (Marrakech-Tensift-Al Haouz) S. sp., S. pseudosuchoides (149976)
Olenekian - Anisian251.2 - 242.0Germany (Thuringia) Chirotherium hildburghausense (182300)
Aegean - Bithynian247.2 - 242.0USA (Arizona) Chirotherium cameronensis (114095)
Anisian247.2 - 242.0Italy (Trentino-Alto Adige) S. sp. (194584)
Anisian247.2 - 242.0United Kingdom (England) S. pseudosuchoides (197350)
Anisian247.2 - 242.0Morocco (Marrakech-Safi) S. sp. (199858 199907)
Anisian247.2 - 242.0Poland (Swietoryzskie) S. sp. (175801)
Anisian - Ladinian247.2 - 237.0France (Auvergne-Rhône-Alpes) S. sp. (201283) S. sp., S. priscum (31310)
Anisian - Ladinian247.2 - 237.0France (Bourgogne-Franche-Comté) S. cameronensis, S. diabloense, S. argantobrivense (28462) S. diabloense (199928)
Middle Triassic247.2 - 237.0France (Bourgogne-Franche-Comté) S. sp. (28092)
Carnian237.0 - 228.0Morocco (Marrakech-Safi) S. sp. (205518)
Hettangian - Sinemurian201.3 - 190.8Lesotho (Quthing) S. motutongense (84072)