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Diplocraterion
Taxonomy
Diplocraterion was named by Torell (1870). It is considered to be a form taxon. Its type is Diplocraterion parallelum.
It was assigned to Ichnofossils by Hantzschel (1975).
It was assigned to Ichnofossils by Hantzschel (1975).
Species
D. parallelum (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1870 | Diplocraterion Torell |
| 1975 | Diplocraterion Hantzschel |
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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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. Hantzschel 1975 | U-shaped burrow with spreite; vertical to bedding plane; limbs of U parallel; both limbs of each successive U-tube confluent with limbs of preceding U-tube; openings of tubes mostly funnel shaped (but apparently often truncated by erosion); commonly protrusive, but also retrusive forms observed; bottom of burrow semicircular, rarely straight; horizontal cross section on bedding planes dumbbell shaped; diameter of tubes 5 to 15 mm, distance between limbs 1 to 7 cm, depth of burrows 2 to 15 cm. |
Measurements
No measurements are available
No ecological data are available
Age range: base of the Atdabanian to the top of the Berriasian or 521.00000 to 139.80000 Ma
Collections (29 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Cambrian | Denmark | D. parallelum (153062 153063 153163) D. sp. (153075 153076 153078) D. sp. A, D. parallelum (153065 153069) | |
| Atdabanian | Sweden | D. sp. (9878 9879 9880) | |
| Botomian | Poland | D. parallelum (153009) | |
| Tremadoc | Canada (Newfoundland) | D. parallelum (175844 175845) | |
| Tremadoc - Arenig | Canada (Newfoundland) | D. sp. (175853) | |
| Rawtheyan | Canada (Quebec) | D. sp. (34618) | |
| Famennian | United Kingdom (Somerset) | D. sp. (232123) | |
| Early/Lower Hettangian | Sweden (Skåne) | D. sp. (83327) | |
| Hettangian - Sinemurian | United Kingdom (England) | D. sp. (176124) | |
| Early/Lower Pliensbachian | United Kingdom (Yorkshire) | D. sp. (219473) | |
| Aalenian - Middle Jurassic | United Kingdom (Yorkshire) | D. sp. (31322) | |
| Bathonian | USA (Wyoming) | D. sp. (56133) | |
| Oxfordian - Tithonian | Canada (British Columbia) | D. sp. (41194) | |
| Tithonian | Greenland | D. habichi (1202 1276) D. sp. (1266 1476) | |
| Tithonian - Neocomian | Canada (British Columbia) | D. sp. (41191) | |
| Berriasian | China (Hebei) | D. parallelum (52850) |