Published July 9, 2026
| Version v1
Figure
Open
FIG. 7 in On the identity of historical specimen TM 8501 and the taxonomy of North American Basilosauridae (Mammalia, Cetartiodactyla, Archaeoceti)
Authors/Creators
- 1. Utrecht University, Faculty of Geosciences, Department of Earth Sciences, Princetonlaan 8a, 3584 CB Utrecht (the Netherlands) j.w.p.hakkens@students.uu.nl and jonashakkens@gmail.com (corresponding author)
- 2. Utrecht University, Faculty of Geosciences, Department of Earth Sciences, Princetonlaan 8a, 3584 CB Utrecht (the Netherlands) and Naturalis Biodiversity Center, Darwinweg 2, 2333 CR, Leiden (the Netherlands) and Natural History Museum Rotterdam, Westzeedijk 345, 3015 AA, Rotterdam (the Netherlands) j.w.f.reumer@uu.nl
- 3. Utrecht University, Faculty of Geosciences, Department of Earth Sciences, Princetonlaan 8a, 3584 CB Utrecht (the Netherlands) and Naturalis Biodiversity Center, Darwinweg 2, 2333 CR, Leiden (the Netherlands) and Teylers Museum, Spaarne 16, 2011 CH, Haarlem (the Netherlands) a.s.schulp@uu.nl
Description
FIG. 7. — Skulls of Zygorhiza kochii (Reichenbach in Carus & Koch,1847) USNM 11962, and Dorudon serratus Gibbes, 1845 MMNS VP 130 in lateral and dorsal views highlighting diagnostic features: 1, nuchal crest bearing a posteriorly directed point at mid-height (Zygorhiza kochii) vs is generally round (Dorudon serratus) in lateral view; 2, crenulated cingula on P2-4 (Zygorhiza kochii) vs smooth cingula on P2-4 (Dorudon serratus); 3, medial margin of maxillae contact frontals (Zygorhiza kochii) vs do not contact the frontals (Dorudon serratus); 4, large anterior process on frontals (Zygorhiza kochii) vs no anterior process on frontals (Dorudon serratus); 5, narial process of premaxilla extends along almost the entire length of the nasals (Zygorhiza kochii) vs halfway along lateral margin of the nasals (Dorudon serratus). Not shown: p1 with single pinched root (Zygorhiza kochii) vs double-rooted p1 (Dorudon serratus). Not to scale. Drawings: Jonas W. P. Hakkens.
Notes
Published as part of Hakkens, Jonas W. P., Reumer, Jelle W. F. & Schulp, Anne S., 2026, On the identity of historical specimen TM 8501 and the taxonomy of North American Basilosauridae (Mammalia, Cetartiodactyla, Archaeoceti), pp. 287-317 in Geodiversitas 48 (14) on page 300, DOI: 10.5252/geodiversitas2026v48a14, http://zenodo.org/record/21277474
Files
figure.png
Files
(310.1 kB)
| Name | Size | Download all |
|---|---|---|
|
md5:a06487c8d5a472f2edbcbf074929c779
|
310.1 kB | Preview Download |
