Species
Valid Extinct

Halisaurus platyspondylus

(Marsh 1869)

No Wikipedia summary available.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
⚠ The temporal range slightly exceeds the K-Pg boundary (66 Ma). Likely an interval offset in PBDB data.
PBDB occurrences
9
Group
Mosasaures
Carnivore aquatic Terrestrial
🦴
PBDB ↗
Classification
Mosasauridae Family
›
Halisaurinae Unranked clade
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Halisaurini Unranked clade
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Halisaurus Genus
›
Halisaurus platyspondylus Species
Fossil sites 9 geolocated sites
Distribution
Top countries
🇺🇸 United States
9
Geological formations
Navesink
3
Severn
3
Mount Laurel
1
Merchantville
1
Hornerstown
1
Temporal distribution
Maastrichtian (72.2–66 Ma)
7
Campanian (83.6–72.2 Ma)
2
Bibliography
Original description
O. C. Marsh. 1869. Notice of some new mosasauroid reptiles from the Greensand of New Jersey. American Journal of Science, second series 48(144):392-397 DOI ↗
Bibliography (5)
W. B. Gallagher. 2002. Faunal changes across the Cretaceous-Tertiary (K-T) boundary in the Atlantic coastal plain of New Jersey: restructuring the marine community after the K-T mass-extinction event. Catastrophic Events and Mass Extinctions: Impacts and beyond. GSA Special Paper 356:291-301 DOI ↗
R. B. Holmes and H.-D. Sues. 2000. A partial skeleton of the basal mosasaur Halisaurus platyspondylus from the Severn Formation (Upper Cretaceous: Maastrichtian) of Maryland. Journal of Paleontology 74(2):309-316 DOI ↗
W. B. Gallagher. 1993. The Cretaceous/Tertiary mass extinction event in the North Atlantic coastal plain. The Mosasaur 5:75-154
D. Baird. 1986. Upper Cretaceous reptiles from the Severn Formation of Maryland. The Mosasaur 3:63-85
D. Baird and G. R. Case. 1966. Rare marine reptiles from the Cretaceous of New Jersey. Journal of Paleontology 40(5):1211-1215