An Eomysticetidae from Mexico: Tables

Volume 28.3
September–December 2025

ISSN: 1094-8074, web version;
1935-3952, print version

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TABLE 1. Measurements of the skull, rostrum, and tympanic bulla of Cochimicetus convexus.

Measurement	Value, cm
Condylobasal length	147
Premaxilla length	100.5
Greatest transverse width of premaxilla	18
Transverse width of premaxilla at nasal	13.2
Transverse width of bone nasal	7
Maxilla length	97
Greatest width of maxilla (preserved)	7.5
Anteroposterior length of temporal fossa, frontal to nuchal crest	19*
Length of parietal, occipital apex to frontoparietal suture	25
Bizygomatic width	51
Transverse width of squamosal at level of the glenoid fossa	48*
Exoccipital width	38
Anteroposterior thickness of paroccipital process	4.7
Width of basioccipital crest	19
Nasal length	27*
Transverse width of anteriormost nasal	6
Transverse width of posteriormost nasal	6.3
Preorbital width of frontal	44.3*
Anteroposterior length of supraorbital process as preserved	9.6
Anteroposterior length of temporal fossa, frontal to subtemporal crest	26*
Occipital shield width	11.5
Width across occipital condyles	14.7
Width of foramen magnum	5.8
Anteroposterior length, exoccipital to anterior margin of supraorbital process	43
Anteroposterior length, postglenoid process to anterior margin of supraorbital process	34.2
Anteroposterior length of occipital	23
Length of the tympanic bulla measured at midpoint	6.2
Width of the tympanic bulla measured at the lateral furrow	3.8
Width of the tympanic bulla measured in the anterior region	3.1
Width of the tympanic bulla measured in the posterior region	4.2
Length of the tympanic bulla measured from the most prominent point of the external prominence	6.4

TABLE 2. Measurements of the mandibles of Cochimicetus convexus.

Measurement	Value, cm
Total length as preserved	139
Dorsoventral depth at the coronoid process	8
Greatest depth anteriorly	3.5
Length of mandible anterior to coronoid	107
Dorsoventral depth of mandibular foramen	4

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