1865 in paleontology

	… 1855; 1856; 1857; 1858; 1859; 1860; 1861; ; 1862; 1863; 1864; 1865; 1866; 1867; 1868; ; 1869; 1870; 1871; 1872; 1873; 1874; 1875 …;
	In science 1862 1863 1864 1865 1866 1867 1868
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Paleontology or palaeontology is the study of prehistoric life forms on Earth through the examination of plant and animal fossils.[1] This includes the study of body fossils, tracks (ichnites), burrows, cast-off parts, fossilised feces (coprolites), palynomorphs and chemical residues. Because humans have encountered fossils for millennia, paleontology has a long history both before and after becoming formalized as a science. This article records significant discoveries and events related to paleontology that occurred or were published in the year 1865.

Newly named archosauromorphs

Newly named basal archosauromorphs

Name	Status	Authors		Age	Unit	Location	Notes
Ankistrodon	Nomen dubium	Thomas Henry Huxley		Early Triassic	Panchet Formation	India	A proterosuchid.

Newly named dinosaurs

Name	Status	Authors	Age	Unit	Location	Notes	Images
Coelosaurus	Preoccupied.	Joseph Leidy	Late Cretaceous (early Maastrichtian)	Navesink Formation	US New Jersey	An ornithomimid. Preoccupied by Owen 1854.
Megadactylus	Preoccupied	Hitchcock	Early Jurassic	Portland Formation	US	Preoccupied by Fitzinger, 1843. Later renamed Amphisaurus.
Polacanthus	Valid	Sir Richard Owen vide Anonymous.	Early Cretaceous (Barremian)	Wessex Formation	UK	A polacanthine ankylosaur.	Polacanthus.
Tomodon	Preoccupied.	Joseph Leidy	Late Cretaceous (early Maastrichtian)	Navesink Formation	US	Preoccupied by Duméril 1853 Later renamed Diplotomodon.

Plesiosaurs

Newly named plesiosaurs

Anhanguera.

Name	Status	Authors	Age	Unit	Location	Notes
Piratosaurus	Nomen dubium	Leidy	Late Cretaceous (Santonian)			A dubious plesiosaur.
Plesiosaurus homalospondylus	Valid	Sir Richard Owen	Early Jurassic (Toarcian)	Alum shale	UK	A Microcleididae plesiosaur. Type species of Microcleidus Watson, 1909.
Plesiosaurus rostratus	Valid	Sir Richard Owen	Early Jurassic (Hettangian-Sinemurian)	Charmouth Mudstone	UK	A rhomaleosaurid plesiosaur. Type species of Archaeonectrus Novozhilov, 1964.

References

Gini-Newman, Garfield; Graham, Elizabeth (2001). Echoes from the past: world history to the 16th century. Toronto: McGraw-Hill Ryerson Ltd. ISBN 9780070887398. OCLC 46769716.

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[1] Gini-Newman, Garfield; Graham, Elizabeth (2001). Echoes from the past: world history to the 16th century. Toronto: McGraw-Hill Ryerson Ltd. ISBN 9780070887398. OCLC 46769716.