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Eomysticetus
Taxonomy
Eomysticetus was named by Sanders and Barnes (2002). It was considered monophyletic by Geisler et al. (2011).
It was assigned to Mysticeti by Bouetel and Muizon (2006); and to Eomysticetidae by Sanders and Barnes (2002), Geisler and Sanders (2003), Steeman (2007), Uhen et al. (2008), Geisler et al. (2011), Okazaki (2012), Boessenecker and Fordyce (2015), Marx and Fordyce (2015), Marx et al. (2016), Fordyce and Marx (2016), Boessenecker and Fordyce (2017), Tsai and Kohno (2017), Berta (2017), Fordyce and Marx (2018) and Hernández-Cisneros and Nava-Sánchez (2022).
It was assigned to Mysticeti by Bouetel and Muizon (2006); and to Eomysticetidae by Sanders and Barnes (2002), Geisler and Sanders (2003), Steeman (2007), Uhen et al. (2008), Geisler et al. (2011), Okazaki (2012), Boessenecker and Fordyce (2015), Marx and Fordyce (2015), Marx et al. (2016), Fordyce and Marx (2016), Boessenecker and Fordyce (2017), Tsai and Kohno (2017), Berta (2017), Fordyce and Marx (2018) and Hernández-Cisneros and Nava-Sánchez (2022).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 2002 | Eomysticetus Sanders and Barnes p. 315 figs. Fig. 3-10 |
| 2003 | Eomysticetus Geisler and Sanders p. 27 |
| 2006 | Eomysticetus Bouetel and Muizon p. 384 |
| 2007 | Eomysticetus Steeman p. 880 figs. Table 1 |
| 2008 | Eomysticetus Uhen et al. p. 611 |
| 2011 | Eomysticetus Geisler et al. p. 6 figs. Table 1 |
| 2012 | Eomysticetus Okazaki p. 129 |
| 2015 | Eomysticetus Boessenecker and Fordyce |
| 2015 | Eomysticetus Marx and Fordyce p. 4 figs. Figure 2 |
| 2016 | Eomysticetus Fordyce and Marx p. 114 figs. Fig. 4 |
| 2016 | Eomysticetus Marx et al. p. 107 |
| 2017 | Eomysticetus Berta p. 167 |
| 2017 | Eomysticetus Boessenecker and Fordyce |
| 2017 | Eomysticetus Tsai and Kohno |
| 2018 | Eomysticetus Fordyce and Marx p. 5 figs. Fig. 4 |
| 2022 | Eomysticetus Hernández-Cisneros and Nava-Sánchez p. 3 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
G. †Eomysticetus Sanders and Barnes 2002
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†Eomysticetus carolinensis Sanders and Barnes 2002
†Eomysticetus whitmorei Sanders and Barnes 2002
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. E. Sanders and L. G. Barnes 2002 | A mysticete differing from all other baleen-bearing Mysticeti by having an elongate and narrow intertemporal region and floor of squamosal fossa with small pit-like depressions herein termed "secondary squamosal fossae"; differing from members of Aetiocetidae by the absence of teeth in adulthood; differing from Cetotheriidae, Balaenopteridae, Balaenidae, Neobalaenidae, and Eschrichtiidae by having elongate anterolateral processes of nasal bones, extremely long zygo- matic processes of squamosals, very thin blade-like anterior process of periotic and small posterior process with well-defined facet for articulation with tympanic bulla, and humerus as long as radius and ulna. Differs from Balaenopteridae, Balaenidae, Neobalaenidae, and Eschrichtiidae by having naris near mid-length of rostrum, exceptionally elongate nasal bones, parietals exposed along intertemporal region between frontals and apex of supraoccipital, periotic with transversely compressed anterior process and no dorsal process on cochlear portion, and large coronoid process of dentary and posterior edge of coronooid elevated above anterior edge.
The two known species of Eomysticetus share the following similarities: exoccipital thick and posteriorly flared; condyles broad and not protruding from skull; basioccipital slightly vaulted transversely; basioccipital crests short anteroposteriorly and wide transversely; large recess for posterior process of periotic; postglenoid process short, thin anteroposteriorly, and continuous with falciform process medially; glenoid fossa with oblique ridge from anteromedial to postlateral; dorsal curvature of zygoma; flattened ventral surface of glenoid fossa; large foramen pseudovale; wide jugular notch; narrow intercondylar notch; asymmetrical and interfrngering frontoparietal suture; sagittal crest present on apex of parietals in intertemporal re- gion; sagittal crest on apex of supraoccipital at right of midline; secondary anteroposterior crest flanking each side of sagittal crest at apex of occiput; paroccipital process not extending laterally as far as lateral edge of zygoma; floor of squamosal fossa with a pit-like depression herein termed the "secondary squamosal fossa." |
Measurements
No measurements are available
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| Source: subo = suborder, o = order | |||||
| Reference: Uhen 2004 | |||||