Another World's Lijialaowu
In a world where the KT event didn't happen, all bets truly are off. Even in the placid climate of the Paleocene - just before the Eocene Thermal Maximum and its ensuing turnover, long before the drastic changes of the Cenozoic - entire biotas were...
Electromagnetic Flyers
In the Late Cretaceous a lineage of deltatheroidean metatherians developed specialised, tightly packed hairs with branching filaments, superficially similar to plumes. This permitted an unique development in vertebrate history: by extending these hairs...
Another World's Hell Creek
Mammals Tyrannotherium rex: A twelve meter long, 15 ton heavy gobiconodontid. Napioa piadaph: A grizzly sized gobiconodontid. Napioa leonina A polar bear sized gobiconodontid. Circavelocipterus major: A 2 meter wingspanned volaticothere. ...
Seahorse Placoderms
A speculative evolution exercise in an alternate timeline two lineages of placoderms convergent with syngnathid fish evolved: - longmaiformes were a clade of arthrodires of uncertain affinities as they more or less appear in the mid-devonian fossil
Spectember: Ichthyornithid Parrots
A speculative evolution concept i've had for a while. in one timeline crown birds didn't make it past the kt event, but ichthyornithids did.
Connection
-881293748 "speculative evolution: feathered mammal concepts by inmyarmsinmyarms") [!
Milk Egg
Another speculative evolution musing non-placental mammals are faced with an unique predicament. possessing epipubic bones, they cannot expand their torsos, and thus cannot give birth to complex, well developed young you take for granted.