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Bressanichnus patagonicus

Reptilia

Taxonomy
Bressanichnus patagonicus was named by Calvo (1991). It is considered to be a form taxon. Its type specimen is MUCPv 60 (plastotype), a footprint, and it is a trace fossil. Its type locality is Peninsula Nueva tracksite (level 4), which is in a Cenomanian delta plain sandstone in the Candeleros Formation of Argentina. It is the type species of Bressanichnus.

Synonymy list
YearName and author
1991Bressanichnus patagonicus Calvo pp. 251-252 figs. 10-13, 18, 20-21
2007Bressanichnus patagonicus Calvo p. 322–323
2020Bressanichnus patagonicus Krapovickas et al. p. 451

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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
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
subclassEureptilia()
RankNameAuthor
—Romeriida
—Diapsida()
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Theropoda()
—Neotheropoda
—AverostraPaul 2002
—Tetanurae
—Coelurosauria()
genusBressanichnus
speciespatagonicus

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.

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Diagnosis
ReferenceDiagnosis
J. O. Calvo 1991La misma del género.
J. O. Calvo 2007Midsized trackrvay of a biped dinosaur. Digit III is more developed than the lateral ones with clarw impressions. The track length is betrveen 20 and 25 cm. The length/width ratio is 1.5. Digit III is curved internally, the heel is subrounded and small. The pace angulations is close to 150°. Tracks are slightly asymmetrical. The hypex formed betrveen digits II and III is posteriorly located with respect to the hvpex between digits III and IV (Calvo 7991).
Measurements
No measurements are available
Composition: hydroxyapatiteo
Entire body: yeso
Adult length: 10 to < 100o
Adult width: 1.0 to < 10o
Adult height: 1.0 to < 10o
Architecture: compact or denseo
Ontogeny: accretion, modification of partso
Grouping: solitaryo
Environment: terrestrialo
Locomotion: actively mobileo
Life habit: ground dwellingo
Diet: carnivoresubo
Reproduction: oviparouso
Dispersal: direct/internalo
Dispersal 2: mobileo
Created: 2009-01-03 20:39:15
Modified: 2009-01-03 22:39:15
Source: subo = suborder, o = order
References: Marsh 1875, Benton 1983

Age range: base of the Early/Lower Cenomanian to the top of the Cenomanian or 99.60000 to 93.90000 Ma

Collections (7 total)


Time interval Ma Country or state Original ID and collection number
Cenomanian100.5 - 93.9Argentina (Neuquén) Bressanichnus patagonicus (196705 197261 219571 219573 219575)
Early/Lower Cenomanian99.6 - 93.5Argentina (Mendoza) Bressanichnus patagonicus (75276 type locality: 98023)