1954 in paleontology

Plants Angiosperms Name Novelty Status Authors Age Unit Location Notes ImagesAmyridoxylonGen et sp novKruseEarly Eocene Green River FormationA rutaceous petrified wood.The type species is A. ordinatumAspidospermoxylonGen et sp novKruseEarly Eocene Green River FormationAn apocynaceous petrified wood.The type species is A. uniseriatumChandleraGen et sp novvalidScottMiddle EoceneClarno FormationA moon seed genus. Type species C. lacunosa.EdenoxylonGen et sp novKruseEarly Eocene Green River FormationAn anacaridaceous petrified wood.The type species is E. parviareolatumFagara biseriataSp novKruseEarly Eocene Green River FormationA rutaceous petrified wood.Fagara monophylloidesSp novKruseEarly Eocene Green River FormationA rutaceous petrified wood.ForchhammerioxylonGen et sp novKruseEarly Eocene Green River FormationA resedaceous petrified wood.The type species is F. scleroticumHeveoxylonGen et sp novKruseEarly Eocene Green River FormationA euphorbiaceous petrified wood.The type species is H. microporosumJuglans clarnensisSp novvalidScottMiddle EoceneClarno FormationA walnut.Mastixioidiocarpum oregonenseGen et sp novvalidScottMiddle EoceneClarno FormationA Tupelo relativeMyrica scalariformisSp novjr synonymKruseEarly Eocene Green River FormationAn Eden Valley petrified wood.Moved to Morella scalariformis in 2021OdontocaryoideaGen et sp novvalidScottMiddle EoceneClarno FormationA moon seed genus. Type species O. nodulosa.Palaeonyssa spatulatasp novjr synonymScottMiddle EoceneClarno FormationA Tupelo, moved to Nyssa spatulata in 1994Palaeophytocrene hancockiiSp novvalidScottMiddle EoceneClarno FormationAn icacinaceous species. Palaeophytocrene pseudopersicaSp novvalidScottMiddle EoceneClarno FormationAn icacinaceous species. Parthenocissus angustisulcataSp novvalidScottMiddle EoceneClarno FormationA vitaceous speciesSchinoxylonGen et sp novKruseEarly Eocene Green River FormationAn anacaridaceous petrified wood.The type species is S. actinoporosumSuriana inordinataSp novKruseEarly Eocene Green River FormationA surianaceous petrified wood.Talauma multiperforataSp novKruseEarly Eocene Green River FormationAn Eden Valley petrified wood.Trochodendroxylon beckiiSp novvalidHergert & PhinneyMiddle EoceneClarno FormationA Trochodendron wood species. Moved to Trochodendron beckii in 1982

Arthropods Insects Name Novelty Status Authors Age Unit Location Notes ImagesParastylotermes frazieriSp. novvalidSnyderMiocene A Stylotermitid termite.

Archosauromorphs Phytosaurs

Name Status Authors Age Unit Location Notes ImagesCoburgosuchusEin Parasuchier-Schädelrest aus dem Oberen Burgsandstein von Coburg [A parasuchian skull remain from the Upper Burgsandstein of Coburg]. Geologisch Blätter für Nordost-Bayern 3:1-13 Valid taxon HellerLate Triassic (Norian)Burgsandstein FormationA member of Pseudopalatinae.

Dinosaurs Data courtesy of George Olshevsky's dinosaur genera list.

Name Status Authors Age Unit Location NotesImages MamenchisaurusYoung C.-C. 1954. On a new sauropod from Yiping. Szechuan, China. Acta Palaeontol. Sinica 2: pp. 355-369. Valid taxon Yang Zhongjian (as Young C. C.)Late Jurassic (late Callovian-early Oxfordian)Shangshaximiao Formation A mamenchisaurid. The type species is M. constructus. This animal had a neck of more than 10 meters. RebbachisaurusRené Lavocat. 1954. Sur les Dinosauriens du continental intercalaire des Kem-Kem de la Daoura. C. R. 19th Internatl. Geol. Congr. (1952): pp. 65-68. Valid taxon René LavocatMiddle Cretaceous (Albian-Cenomanian)Kem Kem Beds

A rebbachisaurid. TherizinosaurusMaleev, E.A. 1954. A new turtle-like saurian in Mongolia. Priroda (1954): pp. 106-108. Valid taxon Evgeny MaleevLate Cretaceous (late Campanian-early Maastrichtian)Nemegt Formation A therizinosaurid.

Synapsids Pelycosaurs

Name Status Authors Age Location Notes ImagesPhreatophasmaValidIvan YefremovMiddle PermianA synapsid of uncertain affinities, perhaps a caseid.

Eutherians Cetaceans Name Status Authors Age Unit Location Notes ImagesLeptodelphisValidKirpichnikovMiddle Miocene (Sarmatian)A member of Kentriodontidae.SarmatodelphisValidKirpichnikovMiddle Miocene (Sarmatian)A kentriodontid.

References