1. The two genera of Eocene fossil primates I choose are Eosimias and Darwinius. Eosimias was first described in 1999 and discovered in 1994 by Christopher Beard. Darwinius was discovered and described in 1983 at the Messel pit.
2. Eosimias lived during the middle Eocene age in Southern China (Fleagle 397). The fossil itself was collected Jiangsu Providence, China. Darwinius also lived during the middle Eocene in Europe, particulary Germany. Darwinius masillae was discorvered southeast of Frankfurt, Germany.
3. Darwinius is dated back to approximately 47 million years ago by. The dating technique used was radiometric based on a basalt fragment coming from underlying volcanic chimney. Eosimias are thought to have lived around 40-45 million years ago based on stratigraphic dating (Wright, Simons, Gursky 25)
4. Eosimias exhibit similarities that resemble that of Tarsiers. They were most likely arboreal primates. Their diet probably consisted of insects and nectar. They were possibly most active at night and solitary creatures. Eosimias species range in size from 67- 276 grams, which make them very small bodied animals. Darwinius …show more content…
Darwinius was originally classified as a member of the Notharctidae family suggesting that it’s the missing link between prosmians and anthropoids. Unfortunately, this was heavily argued and disagreed upon in the scientific community. It is now classified as an Eocene adapiform because of various amounts of morphological characteristics that failed to meet the modern classifications of anthropoids. Still large disagreements present day if Darwinius is actually an ancestor to anthropoids. Eosimias have also been largely debated if they belong as ancestors to anthropoids as well. It has been identified as a very primitive anthropoid (Fleagle 397). Later discovered fossils have put trouble tension on its classification. An example would be the petrosal bone closely resembled omomyid with no definitive anthropoid features (Fleagle
2. Eosimias lived during the middle Eocene age in Southern China (Fleagle 397). The fossil itself was collected Jiangsu Providence, China. Darwinius also lived during the middle Eocene in Europe, particulary Germany. Darwinius masillae was discorvered southeast of Frankfurt, Germany.
3. Darwinius is dated back to approximately 47 million years ago by. The dating technique used was radiometric based on a basalt fragment coming from underlying volcanic chimney. Eosimias are thought to have lived around 40-45 million years ago based on stratigraphic dating (Wright, Simons, Gursky 25)
4. Eosimias exhibit similarities that resemble that of Tarsiers. They were most likely arboreal primates. Their diet probably consisted of insects and nectar. They were possibly most active at night and solitary creatures. Eosimias species range in size from 67- 276 grams, which make them very small bodied animals. Darwinius …show more content…
Darwinius was originally classified as a member of the Notharctidae family suggesting that it’s the missing link between prosmians and anthropoids. Unfortunately, this was heavily argued and disagreed upon in the scientific community. It is now classified as an Eocene adapiform because of various amounts of morphological characteristics that failed to meet the modern classifications of anthropoids. Still large disagreements present day if Darwinius is actually an ancestor to anthropoids. Eosimias have also been largely debated if they belong as ancestors to anthropoids as well. It has been identified as a very primitive anthropoid (Fleagle 397). Later discovered fossils have put trouble tension on its classification. An example would be the petrosal bone closely resembled omomyid with no definitive anthropoid features (Fleagle