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Heloderma texana
Taxonomy
Heloderma texana was named by Stevens (1977). Its type specimen is TMM 40635-123, a skull, and it is a 3D body fossil. Its type locality is Castolon (TMM 40635), which is in a Harrisonian terrestrial horizon in the Delaho Formation of Texas.
Synonymy list
| Year | Name and author |
|---|---|
| 1977 | Heloderma texana Stevens p. 5 figs. 1, A-J |
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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.
†Heloderma texana Stevens 1977
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M. S. Stevens 1977 | Heloderma texana differs from H matthewi of the middle Oligo- cene by its larger and more tuberculated osteoderms, osteoderms that are separated from each other by grooves, and by fewer maxillary teeth. Heloderma texana is distinguished from the living H. suspectum and H horridum by its much smaller size, and by its more pustulate osteoderms. |
Measurements
No measurements are available
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| Source: superf = superfamily, c = class, subp = subphylum, uc = unranked clade | |||||
| References: Carroll 1988, Hendy et al. 2009, Pianka and Vitt 2003 | |||||
Age range: Harrisonian or 24.80000 to 18.50000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Harrisonian | USA (Texas) | Heloderma texana (type locality: 17768) |