Genus: Liodon AGASSIZ, 1846
= Leiodon OWEN, 1841 non SWAINSON, 1839 (Pufferfish)
Etymology:

Species: anceps (OWEN, 1841) AGASSIZ, 1846
Etymology:
= Leiodon anceps OWEN, 1841
Note: Russell (1967) incorretly stated Owen coined Liodon in 1841, when in fact it was Agassiz (1846).

Holotype: BMNH 41639/41640

Locality: Essex County, England, Southern United Kingdom.

Horizon: Upper Chalk (Norfolk Chalk).

Biostratigraphy:

Age: Late Campanian, Upper Senonian Subepoch, Upper Gulf Epoch, Late Cretaceous.

Material: Jaw Fragment with teeth.

Referred material

ARAMBOURGH

Locality: Ouled Abdoun, Couchee III, Ganntour, Couche C, Morocco.

Horizon:

Biostratigraphy:

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

Material:

Number: Not given: Teeth.

 

BARDET, 2012

Locality: Meudon, Ile-de-France region, Hauts-de-Seine Department, France.

Horizon: Meudon Chalk.

Biostraigraphy: B. mucronata zone.

Age: Upper Campanian Stage, Senonian subepoch, Gulf Epoch, Late Cretaceous.

Material:

MNHN 1897-12: Teeth.

= Leiodon, Gg2004/20774: Tooth.

 

BARDET, CAPPETTA, PEREDA SUBERBIOLA, MOUTY, AL MALEH, AHMAD, KHRATA & GANNOUM, 2000

Locality: Bardeh mine, Palmyra area, Palmyrides China of Syria.

Horizon: Phosphatic deposit.

Biostratigraphy:

Age: Late Cretaceous.

Material:

Number: Not given: Teeth.

BARDET, 2012

MNHN-KHN9: Tooth.

 

Locality: Mine A, Charquieh, Palmyra area, Palmyrides China of Syria.

Horizon: Phosphatic deposit.

Biostratigraphy:

Age: Late Cretaceous.

Material:

Number: Not given: Teeth.

 


Locality: Mine B, Charquieh, Palmyra area, Palmyrides China of Syria.

Horizon: Phosphatic deposit.

Biostratigraphy:

Age: Late Cretaceous.

Material:

Number: Not given: Teeth.

 

Locality: Khneifiss mine, Palmyra area, Palmyrides China of Syria.

Horizon: Phosphatic deposit.

Biostratigraphy:

Age: Late Cretaceous.

Material:

Number: Not given: Teeth.

 

BARDET, CORRAL & PEREDA SUBERBIOLA, 1999

Locality: Disused sand quarry near the village of Lano, Lano quarry, Trevino County, about 20 km SE of the City of Vitoria, Basque-Cantabric Basin, Basque Province, Iberian Peninsula, Spain.

Horizon: Sobrepena Formation.

Biostratigraphy:

Age: Uppermost Campanian-Lowermost Maastrichtian Stage, Upper Senonian subepoch, Upper Upper Gulf Epoch, Late Cretaceous.

Material:

MCNA 5847: Tooth.

 

BAYFIELD, 1861

Locality: St. Leonard's Priory, Lollard's Pit, Norwich, Norfolk County, England, Southern United Kingdom.

Horizon: Chalk.

Biostratigraphy:

Age: Late Cretaceous.

Material:

Number: Not given: 6 vertebrae, hundred fragments of other bones and 5 teeth.

 

BENTON & SPENCER, 1995

Locality: St. James’s Pit, Norwich, (TG 242094), Norfolk County, England, Southern United Kingdom.

Horizon: Upper Chalk (Norwich Chalk).

Biostratigraphy:

Age: Campanian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.

Material:

CAMSM B200608-9, B20611-2: Teeth.

NORCM 13-65: Pelvis.

 


CHURCHER, 1988

Locality: Dakhleh Oasis, Western Desert of Egypt.

Horizon: Duwi Formation.

Biostratigraphy:

Age: Campanian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.

Material:

Number: Not given:

 

DEPERET & RUSSO

Locality: Melgou, Morocco.

Horizon: Les Phosphates.

Biostratigraphy:

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

Material:

Number: Not given: Fragment of a maxilla, and a tooth.

 

GAUDRY, 1892

Locality: Meudon, France.

Horizon:

Biostratigraphy: Belemnitella mucronata zone.

Biostratigraphy:

Age: Late Cretaceous.

Material:

Number: Not given: Teeth.

 

Locality: Brighton, East Sussex County, England, Southern United Kingdom.

Horizon:

Biostratigraphy:

Age: Late Cretaceous.

Material:

Number: Not given: Teeth.

 

LYDEKKER, 1888

Locality: Norwich, Norfolk County, England, Southern United Kingdom.

Horizon: Upper Chalk.

Biostratigraphy:

Age: Upper Campanian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.

Material:

BMNH 48939, 48940, 36598, 48940b, 36556: Crowns of a teeth.

BMNH R 1227, R 1228: Casts of a teeth.

BMNH 48941a: Teeth.

 

Locality: Essex County, England, Southern United Kingdom.

Horizon: Upper Chalk (Norfolk Chalk).

Biostratigraphy:

Age: Upper Campanian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.

Material:

BMNH 41639: Fragment of the mandible with the broken bases of 2 teeth.

BMNH 41640: 1 imperfect half of the siliceous cast of the pulp-cavity of a tooth.

 

= “Mosasaurus (Leiodon) cfr. anceps” MACHALSKI, JAGT, DORTANGS, MULCER & RADWANSKI, 2003

Locality: Opoka at Nasilow, Poland.

Horizon:

Biostratigraphy:

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

Material:

ZPAL R. 9/3: Tooth.

ZPAL R. 9/4: Tooth drown.


OWEN, 1850

Locality: Brighton and Lewes Railway, East Sussex County, England, Southern United Kingdom.

Horizon: Chalk.

Biostratigraphy:

Age: Late Cretaceous.

Material:

Number: Not given: Tooth.

 


Locality: Near Norwich, Norfolk County, England, Southern United Kingdom.

Horizon: Chalk Formation.

Biostratigraphy:

Age: Late Cretaceous.

Material:

Number: Not given: Crown of a conical tooth.

 

OWEN, 1851

Locality: Sussex County, England, Southern United Kingdom.

Horizon: Upper Chalk.

Biostratigraphy:

Age: Senonian Subepoch, Gulf Epoch, Late Cretaceous.

Material:

Number: Not given: Tooth.

 

PERRSON, 1959

Locality: Bastad, NW Scania, Sweden.

Horizon:

Biostratigraphy:

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

Material:

LM O 3884 t-LO 3890T: Teeth.

Mr. L. Larsson, private collection: Tooth.

 

PRICE, 1957

Locality: Pernabuci y Paraiba State, Northeast Brazil.

Horizon: Gramame Formation.

Biostratigraphy:

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

Material:

DCM. No. 452-R, 454-R, 470-R, 480-R: Teeth.

 

RAAB, 1963

Locality: Tsefa-Ef'e field, Arad Region, east of Be'er-Sheva, Northern Negev Region, Israel.

Horizon: Mishash Formation, Phosphatic deposits.

Biostratigraphy:

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

Material:

Number: Not given: 11 teeth.

 

SIGNEUX, 1959

Locality: Tranjordan.

Horizon:

Biostratigraphy:

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

Material:

Number: Not given: Teeth.

 

= Mosasaurus stenodon CHALESWORTH, 1845
Etymology:
= Leiodon sp OWEN,

Holotype:

Locality: Chalk quarries on the banks of the Thames, England, Southern United Kingdom.

Horizon: Essex Chalk.

Biostratigraphy:

Age: Late Cretaceous.

Material: Fragment with of jaw.

 

= Mosasaurus anceps MUUSTAFA & ZALMOUT, 2001

Locality: At-Tayyba Area, west of Irbid City, North west Jordan.

Horizon: Upper Part of Amman Formation.

Biostratigraphy:

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

Material:

YUPRT2, YUPRT3: Teeth.

 

Locality: Esh-Shidiya Phosphate Mine, South Jordan.

Horizon: Upper Part of Amman Formation.

Biostratigraphy:

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

Material:

YUPEH1, YUPREH2: Teeth.

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Species: sectorius COPE, 1871
Etymology:
= Tylosaurus sectorius (COPE, 1871) MERRIAM, 1894
= Leiodon sectorius (COPE, 1871) LINGHAM-SOLIAR, 1993
= Prognathodon sectorius (COPE, 1871) SCHULP, POLCYN, MATEUS, JACOBS & MORAIS, 2008

Holotype: AMNH 1401

Locality: Marl pits of the Pemberton Marl Co., at Birmingham, Burlington County, New Jersey.

Horizon: Navesink Formation, Monmouth Group.

Biostratigraphy:

Age: Middle Maastrichtian Stage, uppermost Senonian subepoch, Gulf Epoch, Late Cretaceous.

Material: Badly damaged skull.

Referred material:

Locality: Vincetown, Burlington County, New Jersey.

Horizon: Hornerstown Formation?, Rancocas Group.

Biostratigraphy:

Age: Late Maastrichtian Stage, uppermost Senonian subepoch, Gulf Epoch, Late Cretaceous.

Material:

ANSP 9669:

ANSP 9670:

 

= Prognathodon sectorius BARDET, 2012

Locality: Maastricht, Limburg Province, The Netherlands.

Horizon:

Biostratigraphy:

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

Material:

MNHN 1896-27: Posterior tooth.

 

= Prognathodon sectorius BARDET, MARTIN, CORRAL, PEREDA SUBERBIOLA, & ASTIBIA, 2013

Locality: Disused sand quarry near the village of Lano, Lano quarry, Trevino County, about 20 km SE of the City of Vitoria, Basque-Cantabric Basin, Basque Province, Iberian Peninsula, Spain.

Horizon: Sobrepena Formation.

Biostratigraphy:

Age: Uppermost Campanian-Lowermost Maastrichtian Stage, Upper Senonian subepoch, Upper Upper Gulf Epoch, Late Cretaceous.

Material:

LU-GMS/LAN002: A marginal tooth from the median part of the jaws.

 

= Prognathodon cf. sectorius BASTIAANS, KROLL, CORNELISSEN, JAGT & SCHULP, 2020

Localtiy: Former ENCI Heidelberg Cement Group quarry, Limburg Province, south of Maastricht, the Netherlands.

Horizon: 3 Member, Gulpen Formation.

Biostratigraphy:

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

Material:

NHMM 2012 072: Partial sections of the maxillae, dentries, braincase, parietal, and various elements of the axial skeleton.

Note: Tooth marks on the snout (anterior sections of the premaxillary, left maxillary and left dentary. Likely from an encounter with one or more mosasaur(s).

 

= Leiodon cf. sectorius DORTANGS, JAGT, PEETERS & SCHULP, 2001

Locality: Ankerpoort-Manebel quarry, Eben Emael, Maastricht area, Liege Province, Belgium.

Horizon: Lanaye Member, Gulpen Formation.

Biostratigraphy:

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

Material:

Number: Not given: Lower Jaw.


LINGHAM-SOLIAR, 1993

Locality: Tuffeau of Maastricht, Near Peters mountain, Maastricht, Limburg Province, The Netherlands.

Horizon: Maastricht Formation.

Biostratigraphy:

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

Material:

NHMM 004104: Left dentary with 10 preserved teeth.

 

/MEIJFER, 1980

Locality:

Horizon:

Biostratigraphy:

Age:

Material:

Number: Not given:

 

= Prognathodon cf. sectorius BARDET, PEREDA-SUBERBIOLA, CORRAL, BACETA, TORRES, BONTANTZ, & MARTIN, 2012

Localtiy: Slope of the Urbasa Mountains, near Olazti, Basque-Cantabrian region, Iberian Peninsula, Navarre, Spain.

Horizon: Vitoria Formation.

Biostratigraphy:

Age: Upper Campanian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.

Material:

OIGM-Lu 79: A skull fragment including articulated portions of the right maxilla (with three alveoli and two teeth), prefrontal, and posstibly teh anteriro extremity of the right jugal.


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