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Megaloolithus maghrebiensis

Reptilia - Titanosauridae

Taxonomy
Megaloolithus maghrebiensis was named by Garcia et al. (2003). It is considered to be a form taxon. Its type specimen is ACH2-05, 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
2003Megaloolithus maghrebiensis Garcia et al. p. 62 figs. 2d, 3
2003Megaloolithus maghrebiensis Vianey-Liaud and Garcia p. 173

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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
—Diapsida()
RankNameAuthor
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Saurischia()
—Sauropoda()
—Gravisauria
—Eusauropoda
—Neosauropoda
—Macronaria
—Titanosauriformes
—Titanosauria
familyTitanosauridae
—Megaloolithidae()
genusMegaloolithus
speciesmaghrebiensis

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.

†Megaloolithus maghrebiensis Garcia et al. 2003
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Diagnosis
ReferenceDiagnosis
G. Garcia et al. 2003Megaloolithus irregularly compactituberculate. Eggshell thickness from 1.7 to 2.5 mm. Elongation ratio (HIW) of the units from 2.5 to 3.7. Fan-shaped units with arched growth lines in the mammillae throughout the shell units. Units are well separated (node diameters 0.5 to 1.3 mm). In the areas where the nodes are fused in short chains and flat, the units are not clearly defined and the horizontal growth lines continue from one to the other. Pore canals are straight or linked by oblique bridges, as in Megaloolithus siruguei. Pore canal diameters between 75 to 130 m. Large eisospherite (0.15 to 0.3 mm) per node. Size and shape of the egg unknown.
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: Late/Upper Maastrichtian or 70.60000 to 66.00000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Late/Upper Maastrichtian70.6 - 66.0Morocco (Fes-Boulmane) Megaloolithus maghrebiensis (type locality: 206442)