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Pseudomegaloolithus atlasi

Reptilia

Taxonomy
Pseudomegaloolithus atlasi was named by Vianey-Liaud and Garcia (2003). It is considered to be a form taxon. Its type specimen is ACH2-206, an egg, and it is a 3D body fossil. Its type locality is Achlouj 2 (ACH2), which is in a Maastrichtian terrestrial mudstone in the Irbzer Formation of Morocco.

Synonymy list
YearName and author
2003Pseudomegaloolithus atlasi Vianey-Liaud and Garcia p. 176
2013Pseudomegaloolithus atlasi Chassagne-Manoukian et al. p. 375
2021Pseudomegaloolithus atlasi Khosla p. 1438

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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()
—Romeriida
RankNameAuthor
—Diapsida()
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Saurischia()
—Sauropoda()
—Gravisauria
—Eusauropoda
—Neosauropoda
—Macronaria
—Titanosauriformes
—Titanosauria
genusPseudomegaloolithus
speciesatlasi

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.

†Pseudomegaloolithus atlasi Vianey-Liaud and Garcia 2003
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Diagnosis
ReferenceDiagnosis
M. Vianey-Liaud and G. Garcia 2003Thin Megaloolithidae (0.63 to 1.14 mm; average 0.84 mm), with irregular fan-shaped units, some being low and fused in the wide "valleys", with more or less arched growth lines (more in well separated nodes, less in flat areas); pore canals wide (70 to 150 um) prolatocanaliculate, enlarged at the base of the units, and sometimes at their openings.
Measurements
No measurements are available
Composition: hydroxyapatiteinfrao
Entire body: yesinfrao
Adult length: 10 to < 100infrao
Adult width: 10 to < 100infrao
Adult height: 10 to < 100infrao
Thickness: thickinfrao
Architecture: compact or denseinfrao
Form: sphericalinfrao
Ontogeny: accretion, modification of partsinfrao
Grouping: gregariousinfrao
Environment: terrestrialinfrao
Locomotion: actively mobileinfrao
Life habit: ground dwellinginfrao
Diet: herbivoreinfrao
Reproduction: oviparousinfrao
Dispersal: direct/internalinfrao
Dispersal 2: mobileinfrao
Created: 2004-12-14 12:49:10
Modified: 2004-12-14 14:49:10
Source: infrao = infraorder
Reference: Marsh 1875

Age range: base of the Late/Upper Maastrichtian to the top of the Early/Lower Maastrichtian or 70.60000 to 66.00000 Ma

Collections (5 total)


Time interval Ma Country or state Original ID and collection number
Campanian - Maastrichtian83.6 - 66.0Morocco (Oriental) Pseudomegaloolithus atlasi (214301)
Middle Campanian - Early/Lower Maastrichtian83.5 - 66.0Peru (Amazonas) Megaloolithus pseudomamillare (52840)
Maastrichtian72.1 - 66.0Morocco (Fes-Boulmane) Pseudomegaloolithus atlasi (206441)
Maastrichtian72.1 - 66.0France (Occitanie) Saurischia indet. (58099)
Late/Upper Maastrichtian70.6 - 66.0Morocco (Fes-Boulmane) Pseudomegaloolithus atlasi (type locality: 206442)