1955 in paleontology explained

Plants

Pteridophyta

Arthropods

Crustaceans

Dinosaurs

• Massospondylus gastroliths are documented.^[4]

Newly named dinosaurs

Data courtesy of George Olshevsky's dinosaur genera list.^[5]

Name	Status	Authors	Age	Unit	Location	Notes	Images
Majungasaurus[6]	Valid taxon	René Lavocat	Late Cretaceous (Maastrichtian)	Maevarano Formation		A majungasaurine abelisaurid.
Tarbosaurus[7]	Valid taxon	Evgeny Maleev	Late Cretaceous (late Campanian-early Maastrichtian)	Nemegt Formation Subashi Formation		An Asian Tyrannosaurus-looking tyrannosaurid.

Synapsids

Theriodonts

Name	Status	Authors	Age	Unit	Location	Notes	Images
Sauroctonus	Valid	Bystrow	Late Permian	Semen Formation Teekloof Formation		A gorgonopsian.
Scalenodon	Valid	Crompton and Parrington	Middle Triassic	Manda Formation		A traversodontid cynodont.

Mammals

Eutherians

Cetaceans

Name	Status	Authors	Age	Unit	Location	Notes	Images
Lophocetus pappus	Now renamed Miminiacetus.	Kellogg	Middle Miocene (Langhian)
Pelodelphis	Valid	Kellogg	Middle Miocene (Langhian)	Calvert Formation		An odontocete of uncertain position.
Tretosphys	Valid	Kellogg	Middle Miocene (Langhian)	Calvert Formation	(and)	An odontocete of uncertain position; new genus for "Delphinapterus" gabbi Cope (1868).

References

1. Arnold . C.A. . 1955 . A Tertiary Azolla from British Columbia . Contributions from the Museum of. Paleontology, University of Michigan . 12 . 4 . 37–45 .
2. Remy . Jean Marcel . Avnimelech . M. . 1955-01-01 . Eryon yehoachi nov. sp. et Cenomanocarcinus cf. vanstraeleni Stenzel, crustaces decapodes du Cretace superieur de l'etat d'Israel . Bulletin de la Société Géologique de France . en . S6-V . 4-6 . 311–314 . 10.2113/gssgfbull.S6-V.4-6.311 . 1777-5817.
3. Hof . Cees H.J. . 1998 . Late Cretaceous stomatopods (Crustacea, Malacostraca) from Israel and Jordan . Contributions to Zoology . 67 . 4 . 257–266 . 10.1163/18759866-06704003 . 1383-4517.
4. Bond (1955). Sanders, Manley, and Carpenter (2001), "Table 12.1" page 167.
5. Web site: Olshevsky . George . Dinogeorge's Dinosaur Genera List . 2008-08-07 . 2011-07-15 . https://web.archive.org/web/20110715102453/http://www.polychora.com/dinolist.html . dead .
6. Lavocat, R. 1955. Sur une portion de mandibule de thérepode provenant de Crétace supérieur de Madagascar. Bull. Musee Natl. d’Histoire Nat. (ser. 2) 27: pp. 256-259.
7. Maleev . E. A. . 1955 . Гигантских плотоядных динозавров Монголии . Gigantic carnivorous dinosaurs of Mongolia . . 104 . 634–637 .
8. Harrington . N.J. . Moore . R.C. . 1955 . Kansas Pennsylvanian and other jellyfishes . Bull. Kansas Geol. Surv. . 114 . 5 . 153–163 .

• Bond, G. 1955. A note on dinosaur remains from the Forest Sandstone (Upper Karoo). Occasional Papers of the National Museum of Rhodesia 2: 795–800.
• Sanders F, Manley K, Carpenter K. Gastroliths from the Lower Cretaceous sauropod Cedarosaurus weiskopfae. In: Tanke D.H, Carpenter K, editors. Mesozoic vertebrate life: new research inspired by the paleontology of Philip J. Currie. Indiana University Press; Bloomington, IN: 2001. pp. 166–180.