Published December 31, 2020
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Sirenia Illiger 1811
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Description
cf. Order SIRENIA Illiger, 1811
gen. et sp. indet. (Figure 2)
TxVP 46040-9. Thoracic vertebral centrum. The centrum is amphiplatyan, with flat, distinctly heartshaped anterior and posterior surfaces. The heartshaped cross-section of thoracic vertebrae was noted by Quiring and Harlan (1953), and appears to characterize thoracics of many sirenians, but is not uniquely apomorphic to the group. The morphology of this specimen as preserved is completely consistent with referral to Sirenia, but a more refined taxonomic identification is not justifiable. It is from 41JF50 (McFaddin Beach); field notes indicate the specimen was taken from “Holocene marsh deposits approximately 1 m below the beach sands” in May, 1983.
Notes
Published as part of Bell, Christopher J., Godwin, William, Jenkins, Kelsey M. & Lewis, Patrick J., 2020, First fossil manatees in Texas, USA: Trichechus manatus bakerorum from Pleistocene beach deposits along the Gulf of Mexico, pp. 1-16 in Palaeontologia Electronica (a 47) (a 47) 23 (3) on page 6, DOI: 10.26879/1006, http://zenodo.org/record/11063076
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References
- Illiger, C. 1811. Prodromus systematis mammalium et avium additis terminis zoographicus utriusque classis. C. Salfeld, Berolini, Berlin, Germany.
- Quiring, D. P. and Harlan, C. F. 1953. On the anatomy of the manatee. Journal of Mammalogy,