Oospecies: spheroides (YOUNG, 1954)
Etymology:
= Oolithes spheroides YOUNG, 1954

Holotype:

Locality: Laiyang, Shandong (Shantung) Province, China.

Horizon:

Biostratigraphy:

Age: Late Cretaceous.

Material: 3 crushed spheroid eggs.

Referred material:

YOUNG, 1954

Locality: 1 km E. of Chiangchunting, China.

Horizon:

Biostratigraphy:

Age: Late Cretaceous.

Material:

IVPP V730: 5 eggs in a nest.

 

Locality: Northern slope, about 100 meters from Wenpifeng, near the village of Hungtuyeh, about 3 km southeast of the Laiyang City, Shandong (Shantung) Province, China.

Horizon:

Biostratigraphy:

Age: Late Cretaceous.

Material:

IVPP V731: A nest of 7 fragmentary eggs.

 

 

MIKHALOV, 1991

Locality: Gobi Desert, Mongolia.

Horizon:

Biostratigraphy:

Age: Late Cretaceous.

Material:

PIN 2970/3, 4216-400, 4228-2, 522-400, 614-606, 607, 3142-454, 466; 4216-401: GI and ZPAL material: 2 whole clutches, unbroken eggs and numerous eggshells fragments from seven localities.

 

MIKHALOV, 1991

Locality: Laiyang, Shandong (Shantung) Province, China.

Horizon: V-721, V-733.

Biostratigraphy:

Age: Late Cretaceous.

Material:

Number: Not given: Eggshells.

 

MIKHALOV, SABATH, KURZANOV, 1994

GROUP 1

Locality: Gooreeliyn-Tsav, Sheregiyn-Gashoon, Mongolia.

Horizon: Nemegt Formation.

Biostratigraphy:

Age: Lower Maastrichtian Stage, Uppermost Senonian, Uppermost Gulf Epoch, Late Cretaceous.

Material:

PIN 4216-400, 2970/3, 4216-401: Whole clutches and shell fragments.

 

GROUP 2

Locality: Bayn-Dzak, Mongolia.

Horizon: Djadochta Formation.

Biostratigraphy:

Age: Middle Campanian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.

Material:
PIN 4228-2:

 

Locality: Baga-Tariach, Mongolia.

Horizon: ?Barun Goyot Formation.

Biostratigraphy:

Age: Middle –Late Campanian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous..

Material:

PIN 522-400, 614-606, 607: Nests and egg shells.

 

 

Locality: Ikh-Shunkht, Mongolia.

Horizon: ?Barun Goyot Formation.

Biostratigraphy:

Age: Middle –Late Campanian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous..

Material:

ZPAL MgOv-III/17: Nest and eggshells.

 

 

Locality: Tsagan-Khushu, Mongolia.

Horizon: Nemegt Formation.

Biostratigraphy:

Age: Lower Maastrichtian Stage, Uppermost Senonian, Uppermost Gulf Epoch, Late Cretaceous.

Material:

PIN uncatalogued: Nests and eggshells.

 

 

Locality: Ulan-Bator, Mongolia.

Horizon:

Biostratigraphy:

Age: Late Cretaceous.

Material:

PIN uncatalogued: 1 ?complete egg.

 

 

YOUNG, 1965

Locality: Hoshangkong, Wuching, Nanhsiung, China.

Horizon:

Biostratigraphy:

Age: Late Cretaceous.

Material:

IVPP V.2787: A few eggs more or less compressed and impression of an egg.

 

 

Locality: Ks6, Nanhsiung, China.

Horizon:

Biostratigraphy:

Age: Late Cretaceous.

Material:

PMRE 152: 3 fragments of eggs.

 

 

Locality: Hsiachiayin, Chingkankou, China.

Horizon:

Biostratigraphy:

Age: Late Cretaceous.

Material:

PMRE 11: Nest of eggs.

 

 

Locality: Hungtouyeh, China.

Horizon:

Biostratigraphy:

Age: Late Cretaceous.

Material:

PMRE 126: Nest of eggs.

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Oospecies: chiangchiungtingensis (CHAO & CHIANG, 1974) ZHAO, 1979
Etymology: In reference to Chiangchiungting, Laiyang, Shandong (Shantung) Province, China, where the specimen was found.
= Oolithes chiangchiungtigensis CHAO & CHIANG, 1974

Holotype: IVPP V730

Locality: G. 5547, Chiangchiungting, Laiyang, Shandong (Shantung) Province, China.

Horizon: Wangshi Formation.

Biostratigraphy:

Age: Late Cretaceous.

Material: 4 eggs and nearly 20 egg-fragments, apparently one nest.

Referred material:

IVPP V731:

 

CARPENTER & ALF, 1994/CHAO & CHINAG 1974

Locality: Chiangchungting, Laiyang, Shandong (Shantung) Province, China.

Horizon: Wangshi Formation.

Biostratigraphy:

Age: Campanian Stage(?), Senonian Subepoch, Gulf Epoch, Late Cretaceous.

Material:

Number: Not given: Nests.

 

 

Locality: Laiyang, Shandong (Shantung) Province, China.

Horizon: Wangshi Formation.

Biostratigraphy:

Age: Campanian Stage(?), Senonian Subepoch, Gulf Epoch, Late Cretaceous.

Material:

Number: Not given: Eggs.

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Oospecies: megadermus (YOUNG, 1959) ZHAO, 1979
Etymology:
= Oolithes megadermus YOUNG, 1959

Holotype: IVPP V2337

Locality: Laiyang, Shandong (Shantung) Province, China.

Horizon: Wangshi Formation.

Biostratigraphy:

Age: Campanian Stage(?), Senonian Subepoch, Gulf Epoch, Late Cretaceous.

Material: Eggshells.

Referred material:

CARPENTER & ALF, 1994/CHAO & CHINAG, 1974

Locality: Laiyang, Shandong (Shantung) Province, China.

Horizon: Wangshi Formation.

Biostratigraphy:

Age: Campanian Stage(?), Senonian Subepoch, Gulf Epoch, Late Cretaceous.

Material:

Number: Not given: Eggs.

 

ROYCHOWDHURY, SAHA, GUHA & MUNSHI, 1998

Locality: Lower zone, Kankradungra, Jhalod Taluka, Panchmahals District, India.

Horizon: Lameta Formation.

Biostratigraphy:

Age: Maastrichtian Stage, Upper Senonian Subepoch, Upper Gulf Epoch, Late Cretaceous.

Material:

Number: Not given: 2 nests of eggs.

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Oospecies: tenuicorticus MIKHAILOV, 1994
Etymology: Latin, tenuicroticus, "thin-skinned."

Holotype: PIN No. 4476-4

Locality: Shilyust-Ula locality in Borzongiym Gobi area, Mongolia.

Horizon: ?Barun Goyot Formation.

Biostratigraphy:

Age: Middle –Late Campanian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous..

Material: Fragments of eggshells in rock.

Referred material:

Number: Not given: Numerous shells of broken eggs from same clutch as type.

 

 

Locality: Ulan-Bator, Mongolia.

Horizon:

Biostratigraphy:

Age: Late Cretaceous.

Material:

Geological Institute of Mongolian Academy of Sciences: Egg clutch.

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Oospecies: maiasauroides MIKHAILOV, 1994
Etymology: Indicates similarity of surface ornament to eggshells of Maiasaura.

Holotype: PIN No. 4228-2

Locality: Baga-Tariach locality, Mongolia.

Horizon: Djadochta Formation.

Biostratigraphy:

Age: Middle Campanian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.

Material: Compressed egg.

Referred material:

Locality: Bayan Zag (= Bayn Dzak, Shabarakh Usu GILMORE, 1943), Ömnögov (South Gobi), Mongolia.

Horizon: Djadochta Formation.

Biostratigraphy:

Age: Middle Campanian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.

Material:

PIN No. 614-607, 614-606: Numerous eggshells.

 

= Spheroolithus cf. S. maiasauroides TANAKA, ZELENITSKY, THERRIEN, LEE, KUBOTA, KOBAYASHI, FUNSTON & KHISHIGJAV, 2023

Locality: Altan Uul IV Locality, approximately 58 km nowthwest of Gurvantes, Ömnögov (South Gobi), Mongolia.

Horizon: Nemegt Formation.

Biostratigraphy:

Age: Upper Campanian-Lower Maastrichtian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.

Material:

MPC-D 100/1060: An isolated eggshell fragment.

 

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Oospecies: albertensis ZELENITSKY & HILLS, 1997
Etymology: In reference to the Alberta Province, Canada.

Holotype: RTMP 94.157.63

Locality: Devil’s Coulee, Warner County, Southern Alberta Province, Canada.

Horizon: Oldman Formation, middle Judith River Group.

Biostratigraphy:

Age: Judithian age, Middle Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.

Material: Eggshell fragments.

Referred material:

RTMP 94.157.22, 94.157.23, 94.157.24, 94.157.41: 15 eggshell fragments.

 

 

Locality: Knight’s Ranch, Southern Alberta Province, Canada.

Horizon: Oldman Formation, middle Judith River Group.

Biostratigraphy:

Age: Judithian age, Middle Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.

Material:

RTMP 95.17.2: 460 eggshell fragments.

Note: RTMP 95.17.2a: Pathological eggshell fragment.

 

HORNER, 1999

Locality: Willow Creek Anticline, 12 miles west of Choteau, on the James and John Peebles Ranch, Teton County, Montana.

Horizon: Two Medicine Formation.

Biostratigraphy:

Age: Judithian age, Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.

Material:

MOR 244: Embryonic remains, Mid-shaft of a femur, proximal end of a tibia, 2 caudal vertebrae, partial dentary battery, partial parietal, cervical Centerum, dorsal Centerum, caudal Centerum, partial humerus, distal metatarsal III, distal tibia, and partial right scapula.

MOR 281: 16 eggs in a nest.
Note: Incorrectly listed as MOR 328 by HIRSCH & QUINN, 1990.

HIRSCH & QUINN, 1990

MOR 329/HEC 369: 1 nest with crushed remains of several eggs.

ZELENITSKY, 2000

MOR 227, 228, 229, 277, 337, 1004: ConCenterations of eggshell fragments.

 

 

HIRSCH & QUINN, 1990

Locality: Egg Gulch, Locality TM-008, 12 miles west of Choteau, on the James and John Peebles Ranch, Teton County, Montana.

Horizon: Two Medicine Formation.

Biostratigraphy:

Age: Judithian age, Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.

Material:

MOR 328/HEC 365: 1 clutch with 11 unhateched eggs.

 

ZELENISKY, 2000

Locality: Knight Ranch, Alberta Province, Canada.

Horizon: Oldman Formation, middle Judith River Group.

Biostratigraphy:

Age: Judithian age, Middle Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.

Material:

RTMP 95.17.2: ConCenteration of eggshell fragments.

 

 

Locality: Devil’s Coulee, Warner County, Southern Alberta Province, Canada.

Horizon: Oldman Formation, middle Judith River Group.

Biostratigraphy:

Age: Judithian age, Middle Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.

Material:

RTMP 97.63.2: Unprepared hatched eggs.

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Oospecies: choteauensis JACKSON & VARRICCHIO, 2010
Etymology: Choetau, Teton County, Montana; In reference to the town near the locality where the type material was collected.

Holotype: ES 113, 144, 156, 158, 159, MOR 98-31, ES 1-1, MOR 98-31 ES 1-2, ES 161, 179, MOR 98-31 ES3 and additional uncataloged fragments,

Locality: Dave and Joel Quarry, Sevenmile Hill outcrops, Teton County, Montana.

Horizon: Two Medicine Formation.

Biostratigraphy:

Age: Judithian age, Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.

Material:

ES 113: Egg.

ES 144, 156, 158, 159, MOR 98-31, ES 1-1, MOR 98-31 ES 1-2: Eggshells.

Locality: First Find Micorsite, Sevenmile Hill outcrops, Teton County, Montana.

Horizon: Two Medicine Formation.

Biostratigraphy:

Age: Judithian age, Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.

Material:

ES 161, 179: Eggshells.

 

Locality: Big Draw Site, Sevenmile Hill outcrops, Teton County, Montana.

Horizon: Two Medicine Formation.

Biostratigraphy:

Age: Judithian age, Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.

Material:

MOR 98-31 ES3 and additional uncataloged fragments: Eggshells.

 

Locality: Study area, Sevenmile Hill outcrops, Teton County, Montana.

Horizon: Two Medicine Formation.

Biostratigraphy:

Age: Judithian age, Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.

Material:

ES 183, ES 161: Eggshells.

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Oospecies: europaeus SELLES, VIA, & GALOBART, 2014
Etymology: For its geographic location.

Holotype: IPS-58973a-i

Locality: Near the village of Pont d'Orrit, Tremp Municipality, Lledia Province, Catalonia, Spain.

Horizon: Tremp Formation.

Biostratraphy:

Age: Late Maastrichtian Stage, Uppermost Senonian, Uppermost Gulf Epoch, Late Cretaceous.

Material: 7 eggshell fragments and two thin sections.

Referred material:

IPS-64162a-c: 3 eggshell concentrates comprising 95 fragments.