Family
Formal taxon Extinct

Laevisoolithidae

Mikhailov 1991

Laevisoolithidae is an oofamily of fossil eggs belonging to the Ornithoid-ratite morphotype. Their eggshells are smooth and very thin, typically less than a millimeter thick. Laevisoolithids may be the eggs of Enantiornithid birds. Eggs of the family were found in the Grès à Reptiles Formation of France and the Nemegt Formation of Mongolia.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
12
Group
Dinosaures
Carnivore Ground dwelling, solitary Terrestrial
Classification
Dinosauria Unranked clade
Theropoda Unranked clade
Laevisoolithidae Family
Fossil sites 12 geolocated sites
Distribution
Top countries
🇲🇳 Mongolia
3
🇯🇵 Japan
2
🇫🇷 France
2
🇮🇳 India
2
🇰🇷 South Korea
1
🇲🇽 Mexico
1
🇲🇦 Morocco
1
Geological formations
Ohyamashimo
2
Nemegt
2
Ilseongsan
1
Grès à Reptiles
1
El Gallo
1
Irbzer
1
Temporal distribution
Maastrichtian (72.2–66 Ma)
5
Campanian (83.6–72.2 Ma)
4
Albian (113.2–100.5 Ma)
3
Synonyms (1)
Subtiliolithidae subjective synonym of Laevisoolithidae
Bibliography
Original description
K. E. Mikhailov. 1991. Classification of fossil eggshells of amniotic vertebrates. Acta Palaeontologica Polonica 36(2):193-238
Bibliography (10)
H. Jo, M. Huh, and J. Jung, M. Kim. 2023. The diversity of dinosaur egg fossils from Korea and the preliminary study on the new dinosaur eggs from Shinan, Jeollanam-do province. 14th Symposium on Mesozoic Terrestrial Ecosystems and Biota. The Anatomical Record 306 (S1)
J. S. Cabrera-Hernández, M. Montellano-Ballesteros, and P. D. Roy, D. E. Fastovsky. 2022. Eggshells assemblages and stable isotope composition in the Upper Cretaceous (Campanian) El Gallo Formation of Baja California, Mexico: Paleoenvironmental inferences. Cretaceous Research 138(78):105265 DOI ↗
K. Tanaka, D. K. Zelenitsky, and F. Therrien, T. Ikeda, K. Kubota, H. Saegusa, T. Tanaka, K. Ikuno. 2020. Exceptionally small theropod eggs from the Lower Cretaceous Ohyamashimo Formation of Tamba, Hyogo Prefecture, Japan. Cretaceous Research 114:104519:1-14 DOI ↗
A. Khosla, G. V. R. Prasad, and O. Verma, A. K. Jain, A. Sahni. 2004. Discovery of a micromammal-yielding Deccan intertrappean site near Kisalpuri, Dindori District, Madhya Pradesh. Current Science 87(3):380-383
M. Watabe. 2004. New dinosaur ovifauna from the Upper Cretaceous vertebrate fossil locality, Abdrant Nuru, central part of the Gobi desert, Mongolia. Hayashibara Museum of Natural Sciences Research Bulletin 2:15-27
G. Garcia, R. Tabuce, and H. Cappetta, B. Marandat, I. Bentaleb, A. Benabdallah, M. Vianey-Liaud. 2003. First record of dinosaur eggshells and teeth from the north-west African Maastrichtian (Morocco). Palaeovertebrata 32(2–4):59-69
G. Garcia, S. Duffaud, and M. Feist, B. Marandat, Y. Tambareau, J. Villatte, B. Sigé. 2000. La Neuve, gisement à plantes, invertébrés et vertébrés du Bégudien (Sénonien supérieur continental) du bassin d'Aix-en-Provence [La Neuve, Aix-en-Provence Basin, SE France, a new fossil site bearing plants, invertebrates and vertebrates of Begudian age (continental Late Senonian)]. Geodiversitas 22(3):325-348
E. Buffetaut, J. Le Loeuff, and H. Tong, S. Duffaud, L. Cavin, G. Garcia, D. Ward, l.'Association culturelle archéologique et paléontologique de Cruzy. 1999. Un nouveau gisement de vertébrés du Crétacé supérieur à Cruzy (Hérault, Sud de la France) [A new Late Cretaceous vetebrate locality at Cruzy (Hérault, southern France)]. Comptes Rendus de l'Académie des Sciences à Paris, Sciences de la Terre et des Planètes 328:203-208
A. Khosla and A. Sahni. 1995. Parataxonomic classification of Late Cretaceous dinosaur eggshells from India. Journal of the Palaeontological Society of India 40:87-102
K. E. Mikhailov. 1991. Classification of fossil eggshells of amniotic vertebrates. Acta Palaeontologica Polonica 36(2):193-238