protagrypnine
Any extinct click beetle of the subfamily †Protagrypninae

protagrypnines
plural of protagrypnine

proteoceratid
Any extinct cephalopod in the family Proteoceratidae.

proteoceratids
plural of proteoceratid

proterhinid
Any weevil in the family Proterhinidae, now considered part of the belid subfamily Oxycoryninae.

proterhinids
plural of proterhinid

proterochampsian
Any extinct reptile of the clade †Proterochampsia

proterochampsians
plural of proterochampsian

proterothere
Synonym of proterotheriid.

proterotheriid
Any extinct ungulate in the family Proterotheriidae.

proterotheriids
plural of proterotheriid

protocycloceratid
Any extinct nautiloid cephalopod in the family Protocycloceratidae.

protocycloceratids
plural of protocycloceratid

protodonatoid
Any large, extinct insect of the former order Protodonata (now Meganisoptera)

protodonatoids
plural of protodonatoid

protoneurid
Any damselfly in the family Protoneuridae.

protoneurids
plural of protoneurid

protorosaur
An extinct archosauromorph reptile of the order Protorosauria.

protorosaurian
Alternative form of protorosaur.

protorosaurs
plural of protorosaur

protorothyridid
Any extinct reptile in the family Protorothyrididae.

protorothyridids
plural of protorothyridid

protosinusid
Any weevil of the genus Protosinus

protosinusids
plural of protosinusid

protosirenid
Any extinct mammal in the family Protosirenidae.

protosirenids
plural of protosirenid

protostrongylid
Any nematode of the family Protostrongylidae

protostrongylids
plural of protostrongylid

prototetrapod
Any extinct animal that evolved into a vertebrate tetrapod

prototetrapods
plural of prototetrapod

prototheorid
Any moth in the family Prototheoridae.

prototheorids
plural of prototheorid

protungulate
Any mammal of the genus †Protungulatum.

provocatrix
A female provocator.

psammosteid
Any extinct fish in the family Psammosteidae, which lived in the Devonian.

psammosteids
plural of psammosteid

psarolepid
Any extinct fish of the genus Psarolepis

psarolepids
plural of psarolepid

pselaphid
Any beetle in the family Pselaphidae, now treated as staphylinid subfamily Pselaphinae.

pselaphids
plural of pselaphid

pselaphine
Any beetle in the subfamily Pselaphinae.

pselaphines
plural of pselaphine

psephenid
Any beetle in the family Psephenidae.

psephenids
plural of psephenid

pseudanthessiid
Any copepod in the family Pseudanthessiidae.

pseudanthessiids
plural of pseudanthessiid

pseudapistosian
Any phaegopterine moth in the genus Pseudapistosia.

pseudapistosians
plural of pseudapistosian

pseudocaeciliid
Any barklouse in the family Pseudocaeciliidae.

pseudocaeciliids
plural of pseudocaeciliid

pseudocarchariid
Any shark in the family Pseudocarchariidae.

pseudocarchariids
plural of pseudocarchariid

pseudoceratinid
Any sponge of the family Pseudoceratinidae

pseudoceratinids
plural of pseudoceratinid

pseudocerotid
Any flatworm in the family Pseudocerotidae.

pseudocerotids
plural of pseudocerotid

pseudocheirid
Any marsupial in the family Pseudocheiridae; a ringtail possum.

pseudocheirids
plural of pseudocheirid

pseudochromid
Any fish in the family Pseudochromidae; a dottyback.

pseudochromids
plural of pseudochromid

pseudococculinid
Any gastropod in the family Pseudococculinidae.

pseudococculinids
plural of pseudococculinid

pseudocyclopiid
Any copepod of the family Pseudocyclopiidae.

pseudocyclopiids
plural of pseudocyclopiid

pseudodipteron
A pseudodipteral structure

pseudodipterons
plural of pseudodipteron

pseudoglyptodont
An extinct sloth, Pseudoglyptodon chilensis, from South America

pseudoglyptodonts
plural of pseudoglyptodont

pseudomelaniid
Any extinct gastropod in the family Pseudomelaniidae.

pseudomelaniids
plural of pseudomelaniid

pseudomorphine
An inactive natural dimerization product of the morphine molecule in tandem, and thus a common impurity in morphine concentrations.

pseudomorphines
plural of pseudomorphine

pseudophorid
Any extinct gastropod in the family Pseudophoridae.

pseudophorids
plural of pseudophorid

pseudophylline
Any insect of the subfamily Pseudophyllinae

pseudophyllines
plural of pseudophylline

pseudopimelodid
Any catfish in the family Pseudopimelodidae.

pseudopimelodids
plural of pseudopimelodid

pseudopomyzid
Any fly in the family Pseudopomyzidae, now considered to be the cypselosomatid subfamily Pseudopomyzinae.

pseudopomyzids
plural of pseudopomyzid

pseudopterane
Any soft coral of the genus Pseudopterogorgia (family Gorgoniidae)

pseudopteranes
plural of pseudopterane

pseudorthoceratid
Any extinct cephalopod in the family Pseudorthoceratidae.

pseudorthoceratids
plural of pseudorthoceratid

pseudostigmatid
Any damselfly in the family Pseudostigmatidae.

pseudostigmatids
plural of pseudostigmatid

pseudothelphusid
Any crab in the family Pseudothelphusidae.

pseudothelphusids
plural of pseudothelphusid

pseudotrichonotid
Any fish in the family Pseudotrichonotidae, the sand-diving lizardfishes.

pseudotrichonotids
plural of pseudotrichonotid

pseudoxenodontid
Any colubrid snake of the family Pseudoxenodontidae

pseudoxenodontids
plural of pseudoxenodontid

pseudoxyrhophiid
Any lamprophiid snake of the family Pseudoxyrhophiidae

pseudoxyrhophiids
plural of pseudoxyrhophiid

pseudoxyrhophiine
Any lamprophiid snake of the subfamily Pseudoxyrhophiinae

pseudoxyrhophiines
plural of pseudoxyrhophiine

pseudozygopleurid
Any gastropod in the family Pseudozygopleuridae.

pseudozygopleurids
plural of pseudozygopleurid

psilopterine
Any extinct phorusrhacid of the genus Psilopterus

psilopterines
plural of psilopterine

psilorhynchid
Any fish in the family Psilorhynchidae.

psilorhynchids
plural of psilorhynchid

psocodean
Any insect of the superorder and order Psocodea.

psocodeans
plural of psocodean

psocopteran
Any insect of the order Psocoptera.

psocopterans
plural of psocopteran

psoroptid
Any mite in the family Psoroptidae.

psoroptids
plural of psoroptid

psychocidarid
Any sea urchin in the family Psychocidaridae.

psychocidarids
plural of psychocidarid

psychodid
Any fly in the family Psychodidae

psychodids
plural of psychodid

psychomyiid
Any caddis fly in the family Psychomyiidae.

psychomyiids
plural of psychomyiid

psychopsid
Any insect of the silky lacewing family, Psychopsidae.

psychopsids
plural of psychopsid

pteraspid
Synonym of pteraspidid.

pteraspidid
Any extinct jawless fish of the family †Pteraspididae

pteraspidids
plural of pteraspidid

pteraspids
plural of pteraspid

ptereleotrid
Any fish in the family Ptereleotridae, the dartfishes.

ptereleotrids
plural of ptereleotrid

pterineid
Any bivalve of the extinct family Pterineidae.

pterineids
plural of pterineid

pteroclid
Any bird in the family Pteroclidae; a sandgrouse.

pteroclids
plural of pteroclid

pterocommatine
Any aphid of the tribe Pterocommatini

pterocommatines
plural of pterocommatine

pteronyssid
Any mite in the family Pteronyssidae.

pteronyssids
plural of pteronyssid

pteroptochid
Any bird in the family Pteroptochidae, a synonym of the Rhinocryptidae; a tapaculo.

pteroptochids
plural of pteroptochid

pterothecid
Any extinct mollusk in the family Pterothecidae.

pterothecids
plural of pterothecid

pterotracheid
Any gastropod in the family Pterotracheidae.

pterotracheids
plural of pterotracheid

pterygote
Any insect of the order Pterygota.

pterygotes
plural of pterygote

ptilichthyid
Any fish in the family Ptilichthyidae.

ptilichthyids
plural of ptilichthyid

ptiliid
Any beetle in the family Ptiliidae.

ptiliids
plural of ptiliid

ptilodontid
Any primitive mammal in the family Ptilodontidae.

ptilodontids
plural of ptilodontid

ptilogonatid
Any bird in the family Ptilogonatidae, the silky flycatchers.

ptilogonatids
plural of ptilogonatid

ptychadenid
Any frog of the family Ptychadenidae

ptychadenids
plural of ptychadenid

ptychoderid
Any acorn worm in the family Ptychoderidae.

ptychoderids
plural of ptychoderid