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Macroolithus mutabilis

Reptilia - Elongatoolithidae

Taxonomy
Macroolithus mutabilis was named by Mikhailov (1994). It is considered to be a form taxon. Its type specimen is PIN 4477/5, an egg, and it is a 3D body fossil. Its type locality is Ikh-Shunkht (SMPE), which is in a Campanian/Campanian terrestrial horizon in the Baruungoyot Formation of Mongolia.

Synonymy list
YearName and author
1994Macroolithus mutabilis Mikhailov p. 118 figs. Pl. X:2
2000Macroolithus mutabilis Amo Sanjuán et al. p. 13
2000Macroolithus mutabilis Mikhailov p. 569
2000Macroolithus mutabilis Zelenitsky et al. p. 132

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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
RankNameAuthor
classReptilia
subclassEureptilia()
—Romeriida
—Diapsida()
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Theropoda()
familyElongatoolithidae
genusMacroolithus
speciesmutabilis

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.

†Macroolithus mutabilis Mikhailov 1994
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Diagnosis
ReferenceDiagnosis
K. E. Mikhailov 1994Thick eggshell: predominant range of thickness (in equatorial region) 1.5-1.8 mm; total range 1.3-2.0 mm (with elements of sculpture up to 2.3 mm). Pore canals having large funnels. Fragments characteristically having "aberrational" surface (approximately three fragments) without sculpture and with slitlike pore canals.
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: carnivoreo
Reproduction: oviparouso
Dispersal: direct/internalo
Dispersal 2: mobileo
Created: 2004-12-14 12:50:08
Modified: 2004-12-14 14:50:08
Source: o = order
Reference: Marsh 1875

Age range: base of the Middle Campanian to the top of the Late/Upper Campanian or 83.50000 to 70.60000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Middle Campanian - Late/Upper Campanian83.5 - 70.6Mongolia (Dornogov) Macroolithus mutabilis (type locality: 65327)