Genus: Abditosaurus VILA, SELLES, MORENO-AZANZA, RAZZOLINI, GIL-DELGADO, CANUDO & GALOBART, 2022
Etymology: Latin, Abditus, concealed, because teh skeleton was concealded from science for 60 years, and Greek, sauros, "lizard."

Species: kuehnei VILA, SELLES, MORENO-AZANZA, RAZZOLINI, GIL-DELGADO, CANUDO & GALOBART, 2022
Etymology: In honor of Professor Walter Georg Kühne (1911-1991), the discoverer of the specimen.
= Hypselosaurus n. sp LAPPARENT & AGUIRRE, 1956

Holotype:

Locality: Orcau-1 (formerly known as 'Barranco de Orcau' or 'Orcau'), approximately 6 km east of Tremp, 42°9'34.1424:N, 0°58'22.631"E, Pallars Jussa County, Catalonia Spain.

Horizon: Basalmost Conques Formation, Lower porition of the Tremp Group.

Biostratigraphy:

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

Material:

Breakdown as follows:

MNCN 59296: Middle caudal cheveron.

MNCN 594539, 62760: 2 anterior caudal chevrons (Titanosauriformes indet, 2017)

MNCH 79834: Proximal half of left humerus (Titanosauria indet)

MCD-6749, 6751: Isolated teeth.

MCD-9882: 12 articulated and partial cervical vertebrae (3rd to 14th).

MCD-6718: 3rd dorsal vertebra.

MCD-6729: Partial 4th dorsal vertebra.

MCD-6730: Partial 5th dorsal vertebra.

MCD-6744: Articulated fragments of ?6th and ?7th dorsal centra.

MCD-6745: Fragmetn of ?6th dorsal centrum.

MCD-6719: 1st complete left dorsal rib.

MCD-6720: 2nd complete left dorsal rib.

MCD-6986: 3rd complete left dorsal rib.

MCD-6722:Nearly complete 4th left dorsal rib.

MCD-6735: 5th nearly complete left dorsal rib.

MCD-6738: 6th nearly complete left dorsal rib.

MCD-6717, 6721, 6725, 6728, 6732, 6733, t734, 6736, 6746, 6750, 6985, MNCN69301: Proximal half of 1s6 dorsal rib and rib fragments.

MCD-6724: Right scapula.

MCD-6715: Poserior end of left scapular blade.

MCD-6742: Right coracoid.

MCD-6716: Left sternal plate.

MCD-6747: A sternal rib.

MCD-6988: Distal half of the right humerus.

MCD-6748: Partial right radius.

MCD-6731: Fragment of the left ilium.

MCD-6987: Proximal half of the right femur.

MNCN79837-79838-79848: Right tibia.

MCD-6723: Right fibula.

MNCN-79847: Distal half of the left fibula with adhered calcaneum.