Pleistocene World
@pleistoceneworld.bsky.social
Hi. I'm Bioengineering masters student and Quaternary Paleontology enthusiast. I do science communication on Instagram! Follow me there for detailed posts.
https://www.instagram.com/pleistoceneworld?igsh=MTB6dGEzY3E3anloNw==
https://www.instagram.com/pleistoceneworld?igsh=MTB6dGEzY3E3anloNw==
Should probably be Protocyon scagliarum then, if the bear is Arctotherium angustidens.
December 4, 2025 at 11:57 AM
Should probably be Protocyon scagliarum then, if the bear is Arctotherium angustidens.
Is it confirmed to be Protocyon? I thought it was Theriodictis platensis.
December 4, 2025 at 4:05 AM
Is it confirmed to be Protocyon? I thought it was Theriodictis platensis.
*Vulpus lagopus. Also I kinda missed out on some of the extant microfauna.
November 29, 2025 at 8:29 AM
*Vulpus lagopus. Also I kinda missed out on some of the extant microfauna.
This was inspired by TierZoo's weird rant on Twitter about how scientific names don't matter outside academic settings. However I believe that they do, especially when learning about extinct animals for which we don't have specific common names.
November 29, 2025 at 8:25 AM
This was inspired by TierZoo's weird rant on Twitter about how scientific names don't matter outside academic settings. However I believe that they do, especially when learning about extinct animals for which we don't have specific common names.
THE BIG MELT (continued)
Megaloceros giganteus
Cave Hyenas (Crocuta spelaea)
Elephant Bird (Aepyornis maximus)
Giant Fossa (Cryptoprocta spelea)
A New Predator Born of the Ice Age that is spreading to every corner of the Planet (Homo sapiens)
Megaloceros giganteus
Cave Hyenas (Crocuta spelaea)
Elephant Bird (Aepyornis maximus)
Giant Fossa (Cryptoprocta spelea)
A New Predator Born of the Ice Age that is spreading to every corner of the Planet (Homo sapiens)
November 29, 2025 at 8:23 AM
THE BIG MELT (continued)
Megaloceros giganteus
Cave Hyenas (Crocuta spelaea)
Elephant Bird (Aepyornis maximus)
Giant Fossa (Cryptoprocta spelea)
A New Predator Born of the Ice Age that is spreading to every corner of the Planet (Homo sapiens)
Megaloceros giganteus
Cave Hyenas (Crocuta spelaea)
Elephant Bird (Aepyornis maximus)
Giant Fossa (Cryptoprocta spelea)
A New Predator Born of the Ice Age that is spreading to every corner of the Planet (Homo sapiens)
THE BIG MELT
Scimitar-toothed cats (Homotherium latidens/serum)
Woolly Mammoths (Mammuthus primigenius)
Sea Cow (Hydrodamalis gigas)
Short-faced bear (Arctodus simus)
Columbian Mammoth (Mammuthus columbi)
North American Sabre-toothed cat (Smilodon fatalis)
Dire Wolf (Aenocyon dirus)
Scimitar-toothed cats (Homotherium latidens/serum)
Woolly Mammoths (Mammuthus primigenius)
Sea Cow (Hydrodamalis gigas)
Short-faced bear (Arctodus simus)
Columbian Mammoth (Mammuthus columbi)
North American Sabre-toothed cat (Smilodon fatalis)
Dire Wolf (Aenocyon dirus)
November 29, 2025 at 8:19 AM
THE BIG MELT
Scimitar-toothed cats (Homotherium latidens/serum)
Woolly Mammoths (Mammuthus primigenius)
Sea Cow (Hydrodamalis gigas)
Short-faced bear (Arctodus simus)
Columbian Mammoth (Mammuthus columbi)
North American Sabre-toothed cat (Smilodon fatalis)
Dire Wolf (Aenocyon dirus)
Scimitar-toothed cats (Homotherium latidens/serum)
Woolly Mammoths (Mammuthus primigenius)
Sea Cow (Hydrodamalis gigas)
Short-faced bear (Arctodus simus)
Columbian Mammoth (Mammuthus columbi)
North American Sabre-toothed cat (Smilodon fatalis)
Dire Wolf (Aenocyon dirus)
GRASS LANDS
Rhino (Elasmotherium sibiricum)
Zebra (Equus oldowayensis?, the period is too old for Equus grevyi)
Scimitar-toothed cats (Homotherium sp.)
Otter (Enhydriodon omoensis)
Gigantopithecus blacki
Giant Armadillo (Doedicurus clavicaudatus)
Woolly Mammoth (Mammuthus primigenius)
Rhino (Elasmotherium sibiricum)
Zebra (Equus oldowayensis?, the period is too old for Equus grevyi)
Scimitar-toothed cats (Homotherium sp.)
Otter (Enhydriodon omoensis)
Gigantopithecus blacki
Giant Armadillo (Doedicurus clavicaudatus)
Woolly Mammoth (Mammuthus primigenius)
November 29, 2025 at 8:16 AM
GRASS LANDS
Rhino (Elasmotherium sibiricum)
Zebra (Equus oldowayensis?, the period is too old for Equus grevyi)
Scimitar-toothed cats (Homotherium sp.)
Otter (Enhydriodon omoensis)
Gigantopithecus blacki
Giant Armadillo (Doedicurus clavicaudatus)
Woolly Mammoth (Mammuthus primigenius)
Rhino (Elasmotherium sibiricum)
Zebra (Equus oldowayensis?, the period is too old for Equus grevyi)
Scimitar-toothed cats (Homotherium sp.)
Otter (Enhydriodon omoensis)
Gigantopithecus blacki
Giant Armadillo (Doedicurus clavicaudatus)
Woolly Mammoth (Mammuthus primigenius)
DESERT LANDS (continued)
Ice Age Kangaroo (Propleopus oscillans)
Megalania (Varanus priscus)
Teratorns (cf. Teratornis)
Ice Age Kangaroo (Propleopus oscillans)
Megalania (Varanus priscus)
Teratorns (cf. Teratornis)
November 29, 2025 at 8:05 AM
DESERT LANDS (continued)
Ice Age Kangaroo (Propleopus oscillans)
Megalania (Varanus priscus)
Teratorns (cf. Teratornis)
Ice Age Kangaroo (Propleopus oscillans)
Megalania (Varanus priscus)
Teratorns (cf. Teratornis)
DESERT LANDS
Sloth (Diabolotherium nordenskioldi)
Diprotodon optatum
Marsupial Lion (Thylacoleo carnifex)
Giant Short-face Kangaroo (Procoptodon goliah)
Giant Moa (Dinornis novaezealandiae implied by desert (Rangipo?), Dinornis robustus implied by presence of predators).
Sloth (Diabolotherium nordenskioldi)
Diprotodon optatum
Marsupial Lion (Thylacoleo carnifex)
Giant Short-face Kangaroo (Procoptodon goliah)
Giant Moa (Dinornis novaezealandiae implied by desert (Rangipo?), Dinornis robustus implied by presence of predators).
November 29, 2025 at 8:03 AM
DESERT LANDS
Sloth (Diabolotherium nordenskioldi)
Diprotodon optatum
Marsupial Lion (Thylacoleo carnifex)
Giant Short-face Kangaroo (Procoptodon goliah)
Giant Moa (Dinornis novaezealandiae implied by desert (Rangipo?), Dinornis robustus implied by presence of predators).
Sloth (Diabolotherium nordenskioldi)
Diprotodon optatum
Marsupial Lion (Thylacoleo carnifex)
Giant Short-face Kangaroo (Procoptodon goliah)
Giant Moa (Dinornis novaezealandiae implied by desert (Rangipo?), Dinornis robustus implied by presence of predators).
NEW LANDS (continued)
Giant Stork (Leptoptilos robustus)
Sabre-toothed cat (Smilodon populator)
Terror bird (Psilopterinae sp.)
Macrauchenia patachonica
Giant Stork (Leptoptilos robustus)
Sabre-toothed cat (Smilodon populator)
Terror bird (Psilopterinae sp.)
Macrauchenia patachonica
November 29, 2025 at 7:55 AM
NEW LANDS (continued)
Giant Stork (Leptoptilos robustus)
Sabre-toothed cat (Smilodon populator)
Terror bird (Psilopterinae sp.)
Macrauchenia patachonica
Giant Stork (Leptoptilos robustus)
Sabre-toothed cat (Smilodon populator)
Terror bird (Psilopterinae sp.)
Macrauchenia patachonica
NEW LANDS
Giant bear (Arctotherium angustidens)
Wild Dogs (Theriodictis platensis)
Variegated Squirrel (Sciurus variegatoides)
Giant Ground Sloth (Eremotherium laurillardi)
Giant Armadillo (Glyptotherium cylindricum)
Columbian Mammoth (Mammuthus columbi)
Dwarf Stegodon (Stegodon florensis)
Giant bear (Arctotherium angustidens)
Wild Dogs (Theriodictis platensis)
Variegated Squirrel (Sciurus variegatoides)
Giant Ground Sloth (Eremotherium laurillardi)
Giant Armadillo (Glyptotherium cylindricum)
Columbian Mammoth (Mammuthus columbi)
Dwarf Stegodon (Stegodon florensis)
November 29, 2025 at 7:53 AM
NEW LANDS
Giant bear (Arctotherium angustidens)
Wild Dogs (Theriodictis platensis)
Variegated Squirrel (Sciurus variegatoides)
Giant Ground Sloth (Eremotherium laurillardi)
Giant Armadillo (Glyptotherium cylindricum)
Columbian Mammoth (Mammuthus columbi)
Dwarf Stegodon (Stegodon florensis)
Giant bear (Arctotherium angustidens)
Wild Dogs (Theriodictis platensis)
Variegated Squirrel (Sciurus variegatoides)
Giant Ground Sloth (Eremotherium laurillardi)
Giant Armadillo (Glyptotherium cylindricum)
Columbian Mammoth (Mammuthus columbi)
Dwarf Stegodon (Stegodon florensis)
THE BIG FREEZE (continued)
Sabre-toothed cat (Smilodon populator)
Macrauchenia patachonica
Sabre-toothed cat (Smilodon populator)
Macrauchenia patachonica
November 29, 2025 at 7:49 AM
THE BIG FREEZE (continued)
Sabre-toothed cat (Smilodon populator)
Macrauchenia patachonica
Sabre-toothed cat (Smilodon populator)
Macrauchenia patachonica
THE BIG FREEZE
Woolly Mammoth (Mammuthus primigenius)
Arctic Fox (Alopex lagopus)
Cave Lion (Panthera spelaea)
Cave Bear (Ursus spelaeus)
Cave Hyena (Crocuta spelaea)
Giant Ground Sloth (Megalonyx jeffersonii)
Woolly Rhino (Coelodonta antiquitatis)
Scimitar-toothed cats (Homotherium latidens)
Woolly Mammoth (Mammuthus primigenius)
Arctic Fox (Alopex lagopus)
Cave Lion (Panthera spelaea)
Cave Bear (Ursus spelaeus)
Cave Hyena (Crocuta spelaea)
Giant Ground Sloth (Megalonyx jeffersonii)
Woolly Rhino (Coelodonta antiquitatis)
Scimitar-toothed cats (Homotherium latidens)
November 29, 2025 at 7:45 AM
THE BIG FREEZE
Woolly Mammoth (Mammuthus primigenius)
Arctic Fox (Alopex lagopus)
Cave Lion (Panthera spelaea)
Cave Bear (Ursus spelaeus)
Cave Hyena (Crocuta spelaea)
Giant Ground Sloth (Megalonyx jeffersonii)
Woolly Rhino (Coelodonta antiquitatis)
Scimitar-toothed cats (Homotherium latidens)
Woolly Mammoth (Mammuthus primigenius)
Arctic Fox (Alopex lagopus)
Cave Lion (Panthera spelaea)
Cave Bear (Ursus spelaeus)
Cave Hyena (Crocuta spelaea)
Giant Ground Sloth (Megalonyx jeffersonii)
Woolly Rhino (Coelodonta antiquitatis)
Scimitar-toothed cats (Homotherium latidens)
Is there a reason why Varanus priscus was depicted without its sagittal crest? Is there any recent evidence against it that I'm missing out on?
November 28, 2025 at 11:30 AM
Is there a reason why Varanus priscus was depicted without its sagittal crest? Is there any recent evidence against it that I'm missing out on?
Albanerpeton pannonicum. Just a little guy while also casually being the last of entire distinct lineage of amphibians that survived into the Early Pleistocene.
I don't expect it to be in the show but thought this is my chance to talk about it.
I don't expect it to be in the show but thought this is my chance to talk about it.
November 13, 2025 at 2:03 PM
Albanerpeton pannonicum. Just a little guy while also casually being the last of entire distinct lineage of amphibians that survived into the Early Pleistocene.
I don't expect it to be in the show but thought this is my chance to talk about it.
I don't expect it to be in the show but thought this is my chance to talk about it.
Cryptoprocta spelea?
October 30, 2025 at 12:04 PM
Cryptoprocta spelea?
A family of Arctotherium angustidens (adult female and her two young male cubs) was discovered in a cave in Argentina during the expansion of a highway.
'Photograph of a newly opened cave
excavated in the same level as that from which the fossil bears were recovered.'
'Photograph of a newly opened cave
excavated in the same level as that from which the fossil bears were recovered.'
October 8, 2025 at 2:39 PM
A family of Arctotherium angustidens (adult female and her two young male cubs) was discovered in a cave in Argentina during the expansion of a highway.
'Photograph of a newly opened cave
excavated in the same level as that from which the fossil bears were recovered.'
'Photograph of a newly opened cave
excavated in the same level as that from which the fossil bears were recovered.'
This is actually a part of a much larger mural, other parts of this include the famous Smilodon and Paramylodon at the Tar Pits!
September 8, 2025 at 1:07 AM
This is actually a part of a much larger mural, other parts of this include the famous Smilodon and Paramylodon at the Tar Pits!
Oh that's exciting. Can't wait!
July 29, 2025 at 3:16 PM
Oh that's exciting. Can't wait!
Is that Diabolotherium?!
July 29, 2025 at 3:10 PM
Is that Diabolotherium?!
Wouldn't it be H. daliensis though? The specimens are usually recovered as closely related.
June 19, 2025 at 10:06 AM
Wouldn't it be H. daliensis though? The specimens are usually recovered as closely related.